Don Luc Electronics
The Alpha Geek – Geeking Out

GPS Receiver

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Project #15: Environment – SparkFun Carbon Monoxide Gas Sensor – MQ-7 – Mk08

Published May 16, 2020 | By DonLuc

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#DonLuc #Environment #Microcontrollers #ESP32 #MQ-X #GPS #SparkFun #Adafruit #Pololu #Fritzing #Programming #Arduino #Electronics #Consultant #Vlog #Aphasia

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Environment

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Environment

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Environment

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DL2005Mk08

1 x SparkFun Thing Plus – ESP32 WROOM
1 x Adafruit SHARP Memory Display
1 x SparkFun Environmental Combo Breakout – CCS811/BME280
1 x Adafruit Adalogger FeatherWing – RTC + SD
1 x SparkFun GPS Receiver – GP-20U7
1 x CR1220 12mm Lithium Battery
1 x 32Gb microSD Card
1 x Mountable Slide Switch
1 x SparkFun Rotary Switch – 10 Position
1 x Black Knob
1 x Breadboard Solderable
3 x Pololu Carrier for MQ Gas Sensors
1 x SparkFun Hydrogen Gas Sensor – MQ-8
1 x Pololu Carbon Monoxide & Flammable Gas Sensor – MQ-9
1 x SparkFun Carbon Monoxide Gas Sensor – MQ-7
1 x Qwiic Cable – 100mm
1 x LED Green
11 x 1K Ohm
1 x 4.7K Ohm
2 x 10K Ohm
1 x 20k Ohm
8 x Jumper Wires 3in M/M
9 x Jumper Wires 6in M/M
16 x Wire Solid Core – 22 AWG
2 x Full-Size Breadboard
1 x SparkFun Cerberus USB Cable
1 x DC Power Supply

SparkFun Thing Plus – ESP32 WROOM

LEG – Digital 21
SCK – Digital 13
MOS – Digital 12
SSD – Digital 27
SDA – Digital 23
SCL – Digital 22
SD1 – Digital 33
SC2 – Digital 5
MO2 – Digital 18
MI2 – Digital 19
SS1 – Digital 16
ROT – Analog A0
MH1 – Analog A1
MC1 – Analog A2
MC2 – Analog A3
GPS – Digital 14
VIN – +3.3V
GND – GND

DL2005Mk08p.ino

// ***** Don Luc Electronics © *****
// Software Version Information
// Project #15: Environment - SparkFun Carbon Monoxide Gas Sensor - MQ-7 - Mk08
// 05-08
// DL2005Mk08p.ino 15-08
// EEPROM with Unique ID
// 1 x SparkFun Thing Plus - ESP32 WROOM
// 1 x Adafruit SHARP Memory Display
// 1 x SparkFun Environmental Combo Breakout - CCS811/BME280
// 1 x Adafruit Adalogger FeatherWing - RTC + SD
// 1 x SparkFun GPS Receiver - GP-20U7
// 1 x CR1220 12mm Lithium Battery
// 1 x 32Gb microSD Card
// 1 x Mountable Slide Switch
// 1 x SparkFun Rotary Switch - 10 Position
// 1 x Black Knob
// 1 x Breadboard Solderable
// 3 x Pololu Carrier for MQ Gas Sensors
// 1 x Pololu Carbon Monoxide & Flammable Gas Sensor - MQ-9
// 1 x SparkFun Hydrogen Gas Sensor - MQ-8
// 1 x SparkFun Carbon Monoxide Gas Sensor - MQ-7
// 1 x Qwiic Cable - 100mm
// 1 x LED Green
// 11 x 1K Ohm
// 1 x 4.7K Ohm
// 1 x 10K Ohm
// 1 x 20K Ohm
// 8 x Jumper Wires 3in M/M
// 9 x Jumper Wires 6in M/M
// 16 x Wire Solid Core - 22 AWG
// 2 x Full-Size Breadboard
// 1 x SparkFun Cerberus USB Cable
// 1 x DC Power Supply

// Include the Library Code
// EEPROM Library to Read and Write EEPROM with Unique ID for Unit
#include "EEPROM.h"
// Wire
#include <Wire.h>
// SHARP Memory Display
#include <Adafruit_SharpMem.h>
#include <Adafruit_GFX.h>
// SparkFun CCS811 - eCO2 & tVOC
#include <SparkFunCCS811.h>
// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
#include <SparkFunBME280.h>
// Date and Time
#include "RTClib.h"
// SD Card
#include "FS.h"
#include "SD.h"
#include "SPI.h"
// GPS Receiver
#include <TinyGPS++.h>
// Hardware Serial
#include <HardwareSerial.h>

// LED Green
int iLEDGreen = 21;

// SHARP Memory Display
// any pins can be used
#define SHARP_SCK  13
#define SHARP_MOSI 12
#define SHARP_SS   27
// Set the size of the display here - 144x168
Adafruit_SharpMem display(SHARP_SCK, SHARP_MOSI, SHARP_SS, 144, 168);
// The currently-available SHARP Memory Display (144x168 pixels)
// requires > 4K of microcontroller RAM; it WILL NOT WORK on Arduino Uno
// or other <4K "classic" devices!
#define BLACK 0
#define WHITE 1
// 1/2 of lesser of display width or height
int minorHalfSize; 

// SparkFun CCS811 - eCO2 & tVOC
// Default I2C Address
#define CCS811_ADDR 0x5B 
CCS811 myCCS811(CCS811_ADDR);
float CCS811CO2 = 0;
float CCS811TVOC = 0;

// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
BME280 myBME280;
float BMEtempC = 0;
float BMEhumid = 0;
float BMEaltitudeM = 0;
float BMEpressure = 0;

// Date and Time
// PCF8523 Precision RTC 
RTC_PCF8523 rtc;
String dateRTC = "";
String timeRTC = "";

// microSD Card
const int chipSelect = 33;
String zzzzzz = "";

// Mountable Slide Switch
int iSS1 = 16;
// State
int iSS1State = 0;

// ESP32 HardwareSerial
HardwareSerial tGPS(2);

// GPS Receiver
#define gpsRXPIN 14
// This one is unused and doesnt have a conection
#define gpsTXPIN 32
// The TinyGPS++ object
TinyGPSPlus gps;
float TargetLat;
float TargetLon;
int GPSStatus = 0;

// Rotary Switch - 10 Position
// Number 1 => 10
int iRotNum = A0;
// iRotVal - Value 
int iRotVal = 0;
// Number
int z = 0;
int x = 0;

// Gas Sensors MQ
// Hydrogen Gas Sensor - MQ-8
int iMQ8 = A1;
int iMQ8Raw = 0;
int iMQ8ppm = 0;
// Two points are taken from the curve in datasheet
// With these two points, a line is formed which is "approximately equivalent" to the original curve
float H2Curve[3] = {2.3, 0.93,-1.44};
// Carbon Monoxide & Flammable Gas Sensor - MQ-9
int iMQ9 = A2;
int iMQ9Raw = 0;
int iMQ9ppm = 0;
// Carbon Monoxide Gas Sensor - MQ-7
int iMQ7 = A3;
int iMQ7Raw = 0;
int iMQ7ppm = 0;

// Software Version Information
String sver = "15-08";
// EEPROM Unique ID Information
#define EEPROM_SIZE 64
String uid = "";

void loop() {

  // Receives NEMA data from GPS receiver
  isGPS();
  
  // Date and Time 
  isRTC();
  
  // SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
  isBME280();

  // SparkFun CCS811 - eCO2 & tVOC
  isCCS811();

  // Gas Sensors MQ
  isGasSensor();

  // Rotary Switch
  isRot();

  // Slide Switch
  // Read the state of the iSS1 value
  iSS1State = digitalRead(iSS1);
  
  // If it is the Slide Switch State is HIGH
  if (iSS1State == HIGH) {

    // iLEDGreen
    digitalWrite(iLEDGreen,  HIGH );
    
    // microSD Card
    isSD();

  } else {

    // iLEDGreen
    digitalWrite(iLEDGreen,  LOW );
  
  }

  delay( 1000 );
  
}

getBME280.ino

// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
// isBME280 - Humidity, Temperature, Altitude and Barometric Pressure
void isBME280(){

  // Temperature Celsius
  BMEtempC = myBME280.readTempC();
  // Humidity
  BMEhumid = myBME280.readFloatHumidity();
  // Altitude Meters
  BMEaltitudeM = (myBME280.readFloatAltitudeMeters(), 2);
  // Barometric Pressure
  BMEpressure = myBME280.readFloatPressure();
  
}

getCCS811.ino

// CCS811 - eCO2 & tVOC
// isCCS811 - eCO2 & tVOC
void isCCS811(){

  // This sends the temperature & humidity data to the CCS811
  myCCS811.setEnvironmentalData(BMEhumid, BMEtempC);

  // Calling this function updates the global tVOC and eCO2 variables
  myCCS811.readAlgorithmResults();

  // eCO2 Concentration
  CCS811CO2 = myCCS811.getCO2();
  
  // tVOC Concentration
  CCS811TVOC = myCCS811.getTVOC();
  
}

getDisplay.ino

// Display
// SHARP Memory Display - UID
void isDisplayUID() {

    // Text Display 
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(3);
    display.setTextColor(BLACK);
    // Don Luc Electronics
    display.setCursor(0,10);
    display.println( "Don Luc" );
    display.setTextSize(2);
    display.setCursor(0,40);
    display.println( "Electronics" );
    // Version
    display.setTextSize(3);
    display.setCursor(0,70);
    display.println( "Version" );
    display.setTextSize(2);
    display.setCursor(0,100);   
    display.println( sver );
    // EEPROM Unique ID
    display.setTextSize(1);
    display.setCursor(0,130);
    display.println( "EEPROM Unique ID" );
    display.setTextSize(2);
    display.setCursor(0,145);
    display.println( uid );
    // Refresh
    display.refresh();
    delay( 100 );
    
}
// Display Environmental
void isDisplayEnvironmental(){

    // Text Display Environmental
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(1);
    display.setTextColor(BLACK);
    // Temperature Celsius
    display.setCursor(0,0);
    display.println( "Temperature Celsius" );
    display.setCursor(0,10);
    display.print( BMEtempC );
    display.println( " C" );
    // Humidity
    display.setCursor(0,20);
    display.println( "Humidity" );
    display.setCursor(0,30);
    display.print( BMEhumid );
    display.println( "%" );
    // Altitude Meters
    display.setCursor(0,40);
    display.println( "Altitude Meters" );
    display.setCursor(0,50);
    display.print( BMEaltitudeM );
    display.println( " m" );
    // Pressure
    display.setCursor(0,60);    
    display.println( "Barometric Pressure" );
    display.setCursor(0,70);
    display.print( BMEpressure );
    display.println( " Pa" );
    // eCO2 Concentration
    display.setCursor(0,80);
    display.println( "eCO2 Concentration" );
    display.setCursor(0,90);
    display.print( CCS811CO2 );
    display.println( " ppm" );
    // tVOC Concentration
    display.setCursor(0,100);
    display.println( "tVOC Concentration" );
    display.setCursor(0,110);
    display.print( CCS811TVOC );
    display.println( " ppb" );
    // Date
    display.setCursor(0,120);
    display.println( dateRTC );
    // Time
    display.setCursor(0,130);
    display.println( timeRTC );
    // GPS Status
    display.setCursor(0,140);
    display.println( GPSStatus );
    // Target Latitude
    display.setCursor(0,150);
    display.println( TargetLat );
    // Target Longitude
    display.setCursor(0,160);
    display.println( TargetLon );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display Date
void isDisplayDate() {

    // Text Display Date
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // Date
    display.setCursor(0,5);
    display.println( dateRTC );
    // Time
    display.setCursor(0,30);
    display.println( timeRTC );
    // GPS Status
    display.setCursor(0,60);
    display.print( "GPS: " );
    display.println( GPSStatus );
    // Target Latitude
    display.setCursor(0,80);
    display.println( "Latitude" );
    display.setCursor(0,100);
    display.println( TargetLat );
    // Target Longitude
    display.setCursor(0,120);
    display.println( "Longitude" );
    display.setCursor(0,140);
    display.println( TargetLon );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display BME280
void isDisplayBME280() {

     // Text Display BME280
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // Temperature Celsius
    display.setCursor(0,10);
    display.println( "Temperature" );
    display.setCursor(0,30);
    display.print( BMEtempC );
    display.println( " C" );
    // Humidity
    display.setCursor(0,50);
    display.println( "Humidity" );
    display.setCursor(0,70);
    display.print( BMEhumid );
    display.println( "%" );
    // Altitude Meters
    display.setCursor(0,90);
    display.println( "Altitude M" );
    display.setCursor(0,110);
    display.print( BMEaltitudeM );
    display.println( " m" );
    // Pressure
    display.setCursor(0,130);    
    display.println( "Barometric" );
    display.setCursor(0,150);
    display.print( BMEpressure );
    display.println( "Pa" );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display CCS811 - eCO2 & tVOC
void isDisplayCCS811() {

    // Text Display CCS811
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // eCO2 Concentration
    display.setCursor(0,10);
    display.println( "eCO2" );
    display.setCursor(0,30);
    display.print( CCS811CO2 );
    display.println( " ppm" );
    // tVOC Concentration
    display.setCursor(0,60);
    display.println( "tVOC" );
    display.setCursor(0,80);
    display.print( CCS811TVOC );
    display.println( " ppb" );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display Gas Sensors MQ
void isDisplayMQ() {

    // Text Display MQ
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // Gas Sensors MQ
    display.setCursor(0,10);
    display.println( "Gas Sensors" );
    display.setCursor(0,30);
    display.println( "Gas H2 MQ8" );
    display.setCursor(0,50);
    display.print( iMQ8ppm );
    display.println( " ppm" );
    display.setCursor(0,70);
    display.println( "Gas CO MQ9" );
    display.setCursor(0,90);
    display.print( iMQ9ppm );
    display.println( " ppm" );
    display.setCursor(0,110);
    display.println( "Gas CO MQ7" );
    display.setCursor(0,130);
    display.print( iMQ7ppm );
    display.println( " ppm" );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display Z
void isDisplayZ() {

    // Text Display Z
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(3);
    display.setTextColor(BLACK);
    // Z
    display.setCursor(0,10);
    display.print( "Z: " );
    display.println( z );
    // Refresh
    display.refresh();
    delay( 100 );

}

getEEPROM.ino

// EEPROM
// isUID EEPROM Unique ID
void isUID()
{
  
  // Is Unit ID
  uid = "";
  for (int x = 0; x < 5; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getGPS.ino

// GPS Receiver
// Setup GPS
void setupGPS() {

  // Setup GPS
  tGPS.begin(  9600 , SERIAL_8N1, gpsRXPIN, gpsTXPIN );
  
}
// isGPS
void isGPS(){

  // Receives NEMA data from GPS receiver
  // This sketch displays information every time a new sentence is correctly encoded.
  while ( tGPS.available() > 0)
    if (gps.encode( tGPS.read() ))
    {
     displayInfo();
    }
  
  if (millis() > 5000 && gps.charsProcessed() < 10)
  {
    while(true);
  }

}
// GPS Vector Pointer Target
void displayInfo(){

  // Location
  if (gps.location.isValid())
  {
    
    TargetLat = gps.location.lat();
    TargetLon = gps.location.lng();
    GPSStatus = 2;
    
  }
  else
  {

    GPSStatus = 0;
    
  }

}

getGasSensorMQ.ino

// Gas Sensors MQ
// Gas Sensor
void isGasSensor() {

  // Read in analog value from each gas sensors
  
  // Hydrogen Gas Sensor - MQ-8
  iMQ8Raw = analogRead( iMQ8 );

  // Carbon Monoxide & Flammable Gas Sensor - MQ-9
  iMQ9Raw = analogRead( iMQ9 );  

  // Carbon Monoxide Gas Sensor - MQ-7
  iMQ7Raw = analogRead( iMQ7 );
  
  // Caclulate the PPM of each gas sensors

  // Hydrogen Gas Sensor - MQ-8
  isMQ8(); 

  // Carbon Monoxide & Flammable Gas Sensor - MQ-9
  isMQ9(); 

  // Carbon Monoxide Gas Sensor - MQ-7
  isMQ7(); 
  
}
// Hydrogen Gas Sensor - MQ-8 - PPM
void isMQ8() {

  double RvRo = iMQ8Raw * (3.3 / 1023);

  iMQ8ppm = (pow(4.7,( ((log(RvRo)-H2Curve[1])/H2Curve[2]) + H2Curve[0])));
  
}
// Carbon Monoxide & Flammable Gas Sensor - MQ-9
void isMQ9() {

  double RvRo = iMQ9Raw * (3.3 / 4095);

  iMQ9ppm = 3.027*exp(1.0698*( RvRo ));
  
}
// Carbon Monoxide Gas Sensor - MQ-7
int isMQ7() {

  double RvRo = iMQ7Raw * (3.3 / 4095);

  iMQ7ppm = 3.027*exp(1.0698*( RvRo ));
  
}

getRTC.ino

// Date & Time
// PCF8523 Precision RTC 
void setupRTC() {

  // Date & Time
  // pcf8523 Precision RTC   
  if (! rtc.begin()) {
    while (1);
  }  
  
  if (! rtc.initialized()) {
    // Following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2018, 9, 29, 12, 17, 0));
  }
  
}
// Date and Time RTC
void isRTC () {

  // Date and Time
  dateRTC = "";
  timeRTC = "";
  DateTime now = rtc.now();
  
  // Date
  dateRTC = now.year(), DEC; 
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.month(), DEC;
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.day(), DEC;
  
  // Time
  timeRTC = now.hour(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.minute(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.second(), DEC;
  
}

getRot.ino

// Rotary Switch
// isRot - iRotVal - Value
void isRot() {

  // Rotary Switch
  z = analogRead( iRotNum );
  x = map(z, 0, 4095, 0, 9);
  iRotVal = map(z, 0, 4095, 0, 10);
  
  // Range Value
  switch ( iRotVal ) {
    case 0:

      // Display Environmental
      isDisplayEnvironmental();
      
      break;
    case 1:

      // Display Date
      isDisplayDate();
      
      break;
    case 2:

      // Display BME280
      isDisplayBME280();
      
      break;  
    case 3:

      // Display CCS811 - eCO2 & tVOC
      isDisplayCCS811();
      
      break;
    case 4:

      // Display Gas Sensors MQ
      isDisplayMQ();
      
      break;
    case 5:

      // Display UID
      isDisplayUID();
      
      break;       
    case 6:

      // Z
      isDisplayZ();
      
      break; 
    case 7:
         
      // Z
      isDisplayZ();
      
      break; 
    case 8:

      // Z
      isDisplayZ();
      
      break;
    case 9:

      // Z
      isDisplayZ();
      
      break;
  }

}

getSD.ino

// microSD Card
// microSD Setup
void setupSD() {

    // microSD Card
    pinMode( chipSelect , OUTPUT );
    if(!SD.begin( chipSelect )){
        ;  
        return;
    }
    
    uint8_t cardType = SD.cardType();

    if(cardType == CARD_NONE){
        ; 
        return;
    }

    //Serial.print("SD Card Type: ");
    if(cardType == CARD_MMC){
        ; 
    } else if(cardType == CARD_SD){
        ; 
    } else if(cardType == CARD_SDHC){
        ; 
    } else {
        ; 
    } 

    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
  
}
// microSD Card
void isSD() {

  zzzzzz = "";

  // EEPROM Unique ID|Version|Date|Time|GPS Status|Target Latitude|Target Longitude|Temperature Celsius|Humidity|Altitude Meters|Barometric Pressure|eCO2 Concentration|tVOC Concentration|H2 Gas Sensor MQ-8|CO Gas Sensor MQ-9|CO Gas Sensor MQ-7
  zzzzzz = uid + "|" + sver + "|" + dateRTC + "|" + timeRTC + "|" + GPSStatus + "|" + TargetLat + "|" + TargetLon + "|" + BMEtempC + "|" + BMEhumid + "|" + BMEaltitudeM + "|" + BMEpressure + "|" + CCS811CO2 + "|" + CCS811TVOC + "|" + iMQ8ppm + "|" + iMQ9ppm + "|" + iMQ7ppm + "|\r";

  char msg[zzzzzz.length() + 1];

  zzzzzz.toCharArray(msg, zzzzzz.length() + 1);

  appendFile(SD, "/espdata.txt", msg );
  
}
// List Dir
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
    
    dirname;
    
    File root = fs.open(dirname);
    
    if(!root){
        return;
    }
    
    if(!root.isDirectory()){
        return;
    }

    File file = root.openNextFile();
    
    while(file){
        if(file.isDirectory()){
            file.name();
            if(levels){
                listDir(fs, file.name(), levels -1);
            }
        } else {
            file.name();
            file.size();
        }
        file = root.openNextFile();
    }
    
}
// Write File
void writeFile(fs::FS &fs, const char * path, const char * message){
    
    path;
    
    File file = fs.open(path, FILE_WRITE);
    
    if(!file){
        return;
    }
    
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    
    file.close();
    
}
// Append File
void appendFile(fs::FS &fs, const char * path, const char * message){
    
    path;
    
    File file = fs.open(path, FILE_APPEND);
    
    if(!file){
        return;
    }
    
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    
    file.close();
    
}

setup.ino

// Setup
void setup() {

  // EEPROM Size
  EEPROM.begin(EEPROM_SIZE);
  
  // EEPROM Unique ID
  isUID();
  
  // GPS Receiver
  // Setup GPS
  setupGPS();
  
  // SHARP Display Start & Clear the Display
  display.begin();
  // Clear Display
  display.clearDisplay();
  
  // Display UID
  isDisplayUID();

  // Wire - Inialize I2C Hardware
  Wire.begin();

  // SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
  myBME280.begin();
  
  // CCS811 - eCO2 & tVOC
  myCCS811.begin();

  // Initialize the LED Green
  pinMode(iLEDGreen, OUTPUT);

  // Date & Time RTC
  // PCF8523 Precision RTC 
  setupRTC();
  
  // Date & Time
  isRTC();
  
  // microSD Card
  setupSD();

  // Slide Switch
  pinMode(iSS1, INPUT);

  delay( 5000 );

}

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https://www.donluc.com/?page_id=2149

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Don Luc

Posted in #15 - Environment, Adafruit, Digital Electronics, ESP32, Fritzing, Microcontrollers, Pololu, Program ESP32, Projects, SparkFun | Tagged , , , , , , , , , , , , , , , , , | Leave a comment

Project #15: Environment – Pololu Carbon Monoxide & Flammable Gas Sensor – MQ-9 – Mk07

Published May 13, 2020 | By DonLuc

——

#DonLuc #Environment #Microcontrollers #ESP32 #MQ-X #GPS #SparkFun #Adafruit #Pololu #Fritzing #Programming #Arduino #Electronics #Consultant #Vlog #Aphasia

——

Environment

——

Environment

——

Environment

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Environment

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DL2005Mk06

1 x SparkFun Thing Plus – ESP32 WROOM
1 x Adafruit SHARP Memory Display
1 x SparkFun Environmental Combo Breakout – CCS811/BME280
1 x Adafruit Adalogger FeatherWing – RTC + SD
1 x SparkFun GPS Receiver – GP-20U7
1 x CR1220 12mm Lithium Battery
1 x 32Gb microSD Card
1 x Mountable Slide Switch
1 x SparkFun Rotary Switch – 10 Position
1 x Black Knob
1 x Breadboard Solderable
2 x Pololu Carrier for MQ Gas Sensors
1 x SparkFun Hydrogen Gas Sensor – MQ-8
1 x Pololu Carbon Monoxide & Flammable Gas Sensor – MQ-9
1 x Qwiic Cable – 100mm
1 x LED Green
11 x 1K Ohm
1 x 4.7K Ohm
1 x 10K Ohm
1 x 20k Ohm
6 x Jumper Wires 3in M/M
8 x Jumper Wires 6in M/M
16 x Wire Solid Core – 22 AWG
2 x Full-Size Breadboard
1 x SparkFun Cerberus USB Cable
1 x DC Power Supply

SparkFun Thing Plus – ESP32 WROOM

LEG – Digital 21
SCK – Digital 13
MOS – Digital 12
SSD – Digital 27
SDA – Digital 23
SCL – Digital 22
SD1 – Digital 33
SC2 – Digital 5
MO2 – Digital 18
MI2 – Digital 19
SS1 – Digital 16
ROT – Analog A0
MH1 – Analog A1
MC1 – Analog A2
GPS – Digital 14
VIN – +3.3V
GND – GND

DL2005Mk06p.ino

// ***** Don Luc Electronics © *****
// Software Version Information
// Project #15: Environment - Pololu Carbon Monoxide & Flammable Gas Sensor - MQ-9 - Mk07
// 05-06
// DL2005Mk06p.ino 15-07
// EEPROM with Unique ID
// 1 x SparkFun Thing Plus - ESP32 WROOM
// 1 x Adafruit SHARP Memory Display
// 1 x SparkFun Environmental Combo Breakout - CCS811/BME280
// 1 x Adafruit Adalogger FeatherWing - RTC + SD
// 1 x SparkFun GPS Receiver - GP-20U7
// 1 x CR1220 12mm Lithium Battery
// 1 x 32Gb microSD Card
// 1 x Mountable Slide Switch
// 1 x SparkFun Rotary Switch - 10 Position
// 1 x Black Knob
// 1 x Breadboard Solderable
// 2 x Pololu Carrier for MQ Gas Sensors
// 1 x Pololu Carbon Monoxide & Flammable Gas Sensor - MQ-9
// 1 x SparkFun Hydrogen Gas Sensor - MQ-8
// 1 x Qwiic Cable - 100mm
// 1 x LED Green
// 11 x 1K Ohm
// 1 x 4.7K Ohm
// 1 x 10K Ohm
// 1 x 20K Ohm
// 6 x Jumper Wires 3in M/M
// 8 x Jumper Wires 6in M/M
// 16 x Wire Solid Core - 22 AWG
// 2 x Full-Size Breadboard
// 1 x SparkFun Cerberus USB Cable
// 1 x DC Power Supply

// Include the Library Code
// EEPROM Library to Read and Write EEPROM with Unique ID for Unit
#include "EEPROM.h"
// Wire
#include <Wire.h>
// SHARP Memory Display
#include <Adafruit_SharpMem.h>
#include <Adafruit_GFX.h>
// SparkFun CCS811 - eCO2 & tVOC
#include <SparkFunCCS811.h>
// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
#include <SparkFunBME280.h>
// Date and Time
#include "RTClib.h"
// SD Card
#include "FS.h"
#include "SD.h"
#include "SPI.h"
// GPS Receiver
#include <TinyGPS++.h>
// Hardware Serial
#include <HardwareSerial.h>

// LED Green
int iLEDGreen = 21;

// SHARP Memory Display
// any pins can be used
#define SHARP_SCK  13
#define SHARP_MOSI 12
#define SHARP_SS   27
// Set the size of the display here - 144x168
Adafruit_SharpMem display(SHARP_SCK, SHARP_MOSI, SHARP_SS, 144, 168);
// The currently-available SHARP Memory Display (144x168 pixels)
// requires > 4K of microcontroller RAM; it WILL NOT WORK on Arduino Uno
// or other <4K "classic" devices!
#define BLACK 0
#define WHITE 1
// 1/2 of lesser of display width or height
int minorHalfSize; 

// SparkFun CCS811 - eCO2 & tVOC
// Default I2C Address
#define CCS811_ADDR 0x5B 
CCS811 myCCS811(CCS811_ADDR);
float CCS811CO2 = 0;
float CCS811TVOC = 0;

// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
BME280 myBME280;
float BMEtempC = 0;
float BMEhumid = 0;
float BMEaltitudeM = 0;
float BMEpressure = 0;

// Date and Time
// PCF8523 Precision RTC 
RTC_PCF8523 rtc;
String dateRTC = "";
String timeRTC = "";

// microSD Card
const int chipSelect = 33;
String zzzzzz = "";

// Mountable Slide Switch
int iSS1 = 16;
// State
int iSS1State = 0;

// ESP32 HardwareSerial
HardwareSerial tGPS(2);

// GPS Receiver
#define gpsRXPIN 14
// This one is unused and doesnt have a conection
#define gpsTXPIN 32
// The TinyGPS++ object
TinyGPSPlus gps;
float TargetLat;
float TargetLon;
int GPSStatus = 0;

// Rotary Switch - 10 Position
// Number 1 => 10
int iRotNum = A0;
// iRotVal - Value 
int iRotVal = 0;
// Number
int z = 0;
int x = 0;

// Gas Sensors MQ
// Hydrogen Gas Sensor - MQ-8
int iMQ8 = A1;
int iMQ8Raw = 0;
int iMQ8ppm = 0;
// Two points are taken from the curve in datasheet
// With these two points, a line is formed which is "approximately equivalent" to the original curve
float H2Curve[3] = {2.3, 0.93,-1.44};
// Carbon Monoxide & Flammable Gas Sensor - MQ-9
int iMQ9 = A2;
int iMQ9Raw = 0;
int iMQ9ppm = 0;

// Software Version Information
String sver = "15-07";
// EEPROM Unique ID Information
#define EEPROM_SIZE 64
String uid = "";

void loop() {

  // Receives NEMA data from GPS receiver
  isGPS();
  
  // Date and Time 
  isRTC();
  
  // SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
  isBME280();

  // SparkFun CCS811 - eCO2 & tVOC
  isCCS811();

  // Gas Sensors MQ
  isGasSensor();

  // Rotary Switch
  isRot();

  // Slide Switch
  // Read the state of the iSS1 value
  iSS1State = digitalRead(iSS1);
  
  // If it is the Slide Switch State is HIGH
  if (iSS1State == HIGH) {

    // iLEDGreen
    digitalWrite(iLEDGreen,  HIGH );
    
    // microSD Card
    isSD();

  } else {

    // iLEDGreen
    digitalWrite(iLEDGreen,  LOW );
  
  }

  delay( 1000 );
  
}

getBME280.ino

// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
// isBME280 - Humidity, Temperature, Altitude and Barometric Pressure
void isBME280(){

  // Temperature Celsius
  BMEtempC = myBME280.readTempC();
  // Humidity
  BMEhumid = myBME280.readFloatHumidity();
  // Altitude Meters
  BMEaltitudeM = (myBME280.readFloatAltitudeMeters(), 2);
  // Barometric Pressure
  BMEpressure = myBME280.readFloatPressure();
  
}

getCCS811.ino

// CCS811 - eCO2 & tVOC
// isCCS811 - eCO2 & tVOC
void isCCS811(){

  // This sends the temperature & humidity data to the CCS811
  myCCS811.setEnvironmentalData(BMEhumid, BMEtempC);

  // Calling this function updates the global tVOC and eCO2 variables
  myCCS811.readAlgorithmResults();

  // eCO2 Concentration
  CCS811CO2 = myCCS811.getCO2();
  
  // tVOC Concentration
  CCS811TVOC = myCCS811.getTVOC();
  
}

getDisplay.ino

// Display
// SHARP Memory Display - UID
void isDisplayUID() {

    // Text Display 
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(3);
    display.setTextColor(BLACK);
    // Don Luc Electronics
    display.setCursor(0,10);
    display.println( "Don Luc" );
    display.setTextSize(2);
    display.setCursor(0,40);
    display.println( "Electronics" );
    // Version
    display.setTextSize(3);
    display.setCursor(0,70);
    display.println( "Version" );
    display.setTextSize(2);
    display.setCursor(0,100);   
    display.println( sver );
    // EEPROM Unique ID
    display.setTextSize(1);
    display.setCursor(0,130);
    display.println( "EEPROM Unique ID" );
    display.setTextSize(2);
    display.setCursor(0,145);
    display.println( uid );
    // Refresh
    display.refresh();
    delay( 100 );
    
}
// Display Environmental
void isDisplayEnvironmental(){

    // Text Display Environmental
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(1);
    display.setTextColor(BLACK);
    // Temperature Celsius
    display.setCursor(0,0);
    display.println( "Temperature Celsius" );
    display.setCursor(0,10);
    display.print( BMEtempC );
    display.println( " C" );
    // Humidity
    display.setCursor(0,20);
    display.println( "Humidity" );
    display.setCursor(0,30);
    display.print( BMEhumid );
    display.println( "%" );
    // Altitude Meters
    display.setCursor(0,40);
    display.println( "Altitude Meters" );
    display.setCursor(0,50);
    display.print( BMEaltitudeM );
    display.println( " m" );
    // Pressure
    display.setCursor(0,60);    
    display.println( "Barometric Pressure" );
    display.setCursor(0,70);
    display.print( BMEpressure );
    display.println( " Pa" );
    // eCO2 Concentration
    display.setCursor(0,80);
    display.println( "eCO2 Concentration" );
    display.setCursor(0,90);
    display.print( CCS811CO2 );
    display.println( " ppm" );
    // tVOC Concentration
    display.setCursor(0,100);
    display.println( "tVOC Concentration" );
    display.setCursor(0,110);
    display.print( CCS811TVOC );
    display.println( " ppb" );
    // Date
    display.setCursor(0,120);
    display.println( dateRTC );
    // Time
    display.setCursor(0,130);
    display.println( timeRTC );
    // GPS Status
    display.setCursor(0,140);
    display.println( GPSStatus );
    // Target Latitude
    display.setCursor(0,150);
    display.println( TargetLat );
    // Target Longitude
    display.setCursor(0,160);
    display.println( TargetLon );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display Date
void isDisplayDate() {

    // Text Display Date
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // Date
    display.setCursor(0,5);
    display.println( dateRTC );
    // Time
    display.setCursor(0,30);
    display.println( timeRTC );
    // GPS Status
    display.setCursor(0,60);
    display.print( "GPS: " );
    display.println( GPSStatus );
    // Target Latitude
    display.setCursor(0,80);
    display.println( "Latitude" );
    display.setCursor(0,100);
    display.println( TargetLat );
    // Target Longitude
    display.setCursor(0,120);
    display.println( "Longitude" );
    display.setCursor(0,140);
    display.println( TargetLon );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display BME280
void isDisplayBME280() {

     // Text Display BME280
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // Temperature Celsius
    display.setCursor(0,10);
    display.println( "Temperature" );
    display.setCursor(0,30);
    display.print( BMEtempC );
    display.println( " C" );
    // Humidity
    display.setCursor(0,50);
    display.println( "Humidity" );
    display.setCursor(0,70);
    display.print( BMEhumid );
    display.println( "%" );
    // Altitude Meters
    display.setCursor(0,90);
    display.println( "Altitude M" );
    display.setCursor(0,110);
    display.print( BMEaltitudeM );
    display.println( " m" );
    // Pressure
    display.setCursor(0,130);    
    display.println( "Barometric" );
    display.setCursor(0,150);
    display.print( BMEpressure );
    display.println( "Pa" );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display CCS811 - eCO2 & tVOC
void isDisplayCCS811() {

    // Text Display CCS811
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // eCO2 Concentration
    display.setCursor(0,10);
    display.println( "eCO2" );
    display.setCursor(0,30);
    display.print( CCS811CO2 );
    display.println( " ppm" );
    // tVOC Concentration
    display.setCursor(0,60);
    display.println( "tVOC" );
    display.setCursor(0,80);
    display.print( CCS811TVOC );
    display.println( " ppb" );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display Gas Sensors MQ
void isDisplayMQ() {

    // Text Display MQ
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // Gas Sensors MQ
    display.setCursor(0,10);
    display.println( "Gas Sensors" );
    display.setCursor(0,30);
    display.println( "Gas H2 MQ8" );
    display.setCursor(0,50);
    display.print( iMQ8ppm );
    display.println( " ppm" );
    display.setCursor(0,70);
    display.println( "Gas CO MQ9" );
    display.setCursor(0,90);
    display.print( iMQ9ppm );
    display.println( " ppm" );    
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display Z
void isDisplayZ() {

    // Text Display Z
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(3);
    display.setTextColor(BLACK);
    // Z
    display.setCursor(0,10);
    display.print( "Z: " );
    display.println( z );
    // Refresh
    display.refresh();
    delay( 100 );

}

getEEPROM.ino

// EEPROM
// isUID EEPROM Unique ID
void isUID()
{
  
  // Is Unit ID
  uid = "";
  for (int x = 0; x < 5; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getGPS.ino

// GPS Receiver
// Setup GPS
void setupGPS() {

  // Setup GPS
  tGPS.begin(  9600 , SERIAL_8N1, gpsRXPIN, gpsTXPIN );
  
}
// isGPS
void isGPS(){

  // Receives NEMA data from GPS receiver
  // This sketch displays information every time a new sentence is correctly encoded.
  while ( tGPS.available() > 0)
    if (gps.encode( tGPS.read() ))
    {
     displayInfo();
    }
  
  if (millis() > 5000 && gps.charsProcessed() < 10)
  {
    while(true);
  }

}
// GPS Vector Pointer Target
void displayInfo(){

  // Location
  if (gps.location.isValid())
  {
    
    TargetLat = gps.location.lat();
    TargetLon = gps.location.lng();
    GPSStatus = 2;
    
  }
  else
  {

    GPSStatus = 0;
    
  }

}

getGasSensorMQ.ino

// Gas Sensors MQ
// Gas Sensor
void isGasSensor() {

  // Read in analog value from each gas sensors
  
  // Hydrogen Gas Sensor - MQ-8
  iMQ8Raw = analogRead( iMQ8 );

  // Carbon Monoxide & Flammable Gas Sensor - MQ-9
  iMQ9Raw = analogRead( iMQ9 );
  
  // Caclulate the PPM of each gas sensors

  // Hydrogen Gas Sensor - MQ-8
  isMQ8(); 

  // Carbon Monoxide & Flammable Gas Sensor - MQ-9
  isMQ9();
  
}
// Hydrogen Gas Sensor - MQ-8 - PPM
void isMQ8() {

  // RvRo
  double RvRo = iMQ8Raw * (3.3 / 1023);

  iMQ8ppm = (pow(4.7,( ((log(RvRo)-H2Curve[1])/H2Curve[2]) + H2Curve[0])));
  
}
// Carbon Monoxide & Flammable Gas Sensor - MQ-9
void isMQ9() {

  double RvRo = iMQ9Raw * (3.3 / 4095);

  iMQ9ppm = 3.027*exp(1.0698*( RvRo ));
  
}

getRTC.ino

// Date & Time
// PCF8523 Precision RTC 
void setupRTC() {

  // Date & Time
  // pcf8523 Precision RTC   
  if (! rtc.begin()) {
    while (1);
  }  
  
  if (! rtc.initialized()) {
    // Following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2018, 9, 29, 12, 17, 0));
  }
  
}
// Date and Time RTC
void isRTC () {

  // Date and Time
  dateRTC = "";
  timeRTC = "";
  DateTime now = rtc.now();
  
  // Date
  dateRTC = now.year(), DEC; 
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.month(), DEC;
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.day(), DEC;
  
  // Time
  timeRTC = now.hour(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.minute(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.second(), DEC;
  
}

getRot.ino

// Rotary Switch
// isRot - iRotVal - Value
void isRot() {

  // Rotary Switch
  z = analogRead( iRotNum );
  x = map(z, 0, 4095, 0, 9);
  iRotVal = map(z, 0, 4095, 0, 10);

  // Range Value
  switch ( iRotVal ) {
    case 0:

      // Display Environmental
      isDisplayEnvironmental();
      
      break;
    case 1:

      // Display Date
      isDisplayDate();
      
      break;
    case 2:

      // Display BME280
      isDisplayBME280();
      
      break;  
    case 3:

      // Display CCS811 - eCO2 & tVOC
      isDisplayCCS811();
      
      break;
    case 4:

      // Display Gas Sensors MQ
      isDisplayMQ();
      
      break;
    case 5:

      // Display UID
      isDisplayUID();
      
      break;       
    case 6:

      // Z
      isDisplayZ();
      
      break; 
    case 7:
         
      // Z
      isDisplayZ();
      
      break; 
    case 8:

      // Z
      isDisplayZ();
      
      break;
    case 9:

      // Z
      isDisplayZ();
      
      break;
    default:

      // Z
      isDisplayZ();
      break;
  }

}

getSD.ino

// microSD Card
// microSD Setup
void setupSD() {

    // microSD Card
    pinMode( chipSelect , OUTPUT );
    if(!SD.begin( chipSelect )){
        ;  
        return;
    }
    
    uint8_t cardType = SD.cardType();

    if(cardType == CARD_NONE){
        ; 
        return;
    }

    //Serial.print("SD Card Type: ");
    if(cardType == CARD_MMC){
        ; 
    } else if(cardType == CARD_SD){
        ; 
    } else if(cardType == CARD_SDHC){
        ; 
    } else {
        ; 
    } 

    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
  
}
// microSD Card
void isSD() {

  zzzzzz = "";

  // EEPROM Unique ID|Version|Date|Time|GPS Status|Target Latitude|Target Longitude|Temperature Celsius|Humidity|Altitude Meters|Barometric Pressure|eCO2 Concentration|tVOC Concentration|H2 Gas Sensor MQ-8|CO Gas Sensor MQ-9
  zzzzzz = uid + "|" + sver + "|" + dateRTC + "|" + timeRTC + "|" + GPSStatus + "|" + TargetLat + "|" + TargetLon + "|" + BMEtempC + "|" + BMEhumid + "|" + BMEaltitudeM + "|" + BMEpressure + "|" + CCS811CO2 + "|" + CCS811TVOC + "|" + iMQ8ppm + + "|" + iMQ9ppm + "|\r";

  char msg[zzzzzz.length() + 1];

  zzzzzz.toCharArray(msg, zzzzzz.length() + 1);

  appendFile(SD, "/espdata.txt", msg );
  
}
// List Dir
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
    
    dirname;
    
    File root = fs.open(dirname);
    
    if(!root){
        return;
    }
    
    if(!root.isDirectory()){
        return;
    }

    File file = root.openNextFile();
    
    while(file){
        if(file.isDirectory()){
            file.name();
            if(levels){
                listDir(fs, file.name(), levels -1);
            }
        } else {
            file.name();
            file.size();
        }
        file = root.openNextFile();
    }
    
}
// Write File
void writeFile(fs::FS &fs, const char * path, const char * message){
    
    path;
    
    File file = fs.open(path, FILE_WRITE);
    
    if(!file){
        return;
    }
    
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    
    file.close();
    
}
// Append File
void appendFile(fs::FS &fs, const char * path, const char * message){
    
    path;
    
    File file = fs.open(path, FILE_APPEND);
    
    if(!file){
        return;
    }
    
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    
    file.close();
    
}

setup.ino

// Setup
void setup() {

  // EEPROM Size
  EEPROM.begin(EEPROM_SIZE);
  
  // EEPROM Unique ID
  isUID();
  
  // GPS Receiver
  // Setup GPS
  setupGPS();
  
  // SHARP Display Start & Clear the Display
  display.begin();
  // Clear Display
  display.clearDisplay();
  
  // Display UID
  isDisplayUID();

  // Wire - Inialize I2C Hardware
  Wire.begin();

  // SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
  myBME280.begin();
  
  // CCS811 - eCO2 & tVOC
  myCCS811.begin();

  // Initialize the LED Green
  pinMode(iLEDGreen, OUTPUT);

  // Date & Time RTC
  // PCF8523 Precision RTC 
  setupRTC();
  
  // Date & Time
  isRTC();
  
  // microSD Card
  setupSD();

  // Slide Switch
  pinMode(iSS1, INPUT);

  delay( 5000 );

}

Technology Experience

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Don Luc

Posted in #15 - Environment, Adafruit, Digital Electronics, ESP32, Fritzing, Microcontrollers, Pololu, Program ESP32, Projects, SparkFun | Tagged , , , , , , , , , , , , , , , , , | Leave a comment

Project #15: Environment – SparkFun Hydrogen Gas Sensor – MQ-8 – Mk06

Published May 8, 2020 | By DonLuc

——

#DonLuc #Environment #Microcontrollers #ESP32 #MQ-8 #GPS #SparkFun #Adafruit #Pololu #Fritzing #Programming #Arduino #Electronics #Consultant #Vlog #Aphasia

——

Environment

——

Environment

——

Environment

——

DL2005Mk04

1 x SparkFun Thing Plus – ESP32 WROOM
1 x Adafruit SHARP Memory Display
1 x SparkFun Environmental Combo Breakout – CCS811/BME280
1 x Adafruit Adalogger FeatherWing – RTC + SD
1 x SparkFun GPS Receiver – GP-20U7
1 x CR1220 12mm Lithium Battery
1 x 32Gb microSD Card
1 x Mountable Slide Switch
1 x SparkFun Rotary Switch – 10 Position
1 x Black Knob
1 x Breadboard Solderable
1 x Pololu Adjustable Boost Regulator 2.5-9.5V
1 x Pololu Carrier for MQ Gas Sensors
1 x SparkFun Hydrogen Gas Sensor – MQ-8
1 x Qwiic Cable – 100mm
1 x LED Green
11 x 1K Ohm
1 x 4.7K Ohm
1 x 10K Ohm
4 x Jumper Wires 3in M/M
8 x Jumper Wires 6in M/M
16 x Wire Solid Core – 22 AWG
2 x Full-Size Breadboard
1 x SparkFun Cerberus USB Cable

SparkFun Thing Plus – ESP32 WROOM

LEG – Digital 21
SCK – Digital 13
MOS – Digital 12
SSD – Digital 27
SDA – Digital 23
SCL – Digital 22
SD1 – Digital 33
SC2 – Digital 5
MO2 – Digital 18
MI2 – Digital 19
SS1 – Digital 16
ROT – Analog A0
MH1 – Analog A1
GPS – Digital 14
VIN – +3.3V
GND – GND

DL2005Mk04p.ino

// ***** Don Luc Electronics © *****
// Software Version Information
// Project #15: Environment - SparkFun Hydrogen Gas Sensor - MQ-8 - Mk06
// 05-04
// DL2005Mk04p.ino 15-06
// EEPROM with Unique ID
// 1 x SparkFun Thing Plus - ESP32 WROOM
// 1 x Adafruit SHARP Memory Display
// 1 x SparkFun Environmental Combo Breakout - CCS811/BME280
// 1 x Adafruit Adalogger FeatherWing - RTC + SD
// 1 x SparkFun GPS Receiver - GP-20U7
// 1 x CR1220 12mm Lithium Battery
// 1 x 32Gb microSD Card
// 1 x Mountable Slide Switch
// 1 x SparkFun Rotary Switch - 10 Position
// 1 x Black Knob
// 1 x Breadboard Solderable
// 1 x Pololu Adjustable Boost Regulator 2.5-9.5V
// 1 x Pololu Carrier for MQ Gas Sensors
// 1 x SparkFun Hydrogen Gas Sensor - MQ-8
// 1 x Qwiic Cable - 100mm
// 1 x LED Green
// 11 x 1K Ohm
// 1 x 4.7K Ohm
// 1 x 10K Ohm
// 4 x Jumper Wires 3in M/M
// 8 x Jumper Wires 6in M/M
// 16 x Wire Solid Core - 22 AWG
// 2 x Full-Size Breadboard
// 1 x SparkFun Cerberus USB Cable

// Include the Library Code
// EEPROM Library to Read and Write EEPROM with Unique ID for Unit
#include "EEPROM.h"
// Wire
#include <Wire.h>
// SHARP Memory Display
#include <Adafruit_SharpMem.h>
#include <Adafruit_GFX.h>
// SparkFun CCS811 - eCO2 & tVOC
#include <SparkFunCCS811.h>
// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
#include <SparkFunBME280.h>
// Date and Time
#include "RTClib.h"
// SD Card
#include "FS.h"
#include "SD.h"
#include "SPI.h"
// GPS Receiver
#include <TinyGPS++.h>
// Hardware Serial
#include <HardwareSerial.h>

// LED Green
int iLEDGreen = 21;

// SHARP Memory Display
// any pins can be used
#define SHARP_SCK  13
#define SHARP_MOSI 12
#define SHARP_SS   27
// Set the size of the display here - 144x168
Adafruit_SharpMem display(SHARP_SCK, SHARP_MOSI, SHARP_SS, 144, 168);
// The currently-available SHARP Memory Display (144x168 pixels)
// requires > 4K of microcontroller RAM; it WILL NOT WORK on Arduino Uno
// or other <4K "classic" devices!
#define BLACK 0
#define WHITE 1
// 1/2 of lesser of display width or height
int minorHalfSize; 

// SparkFun CCS811 - eCO2 & tVOC
// Default I2C Address
#define CCS811_ADDR 0x5B 
CCS811 myCCS811(CCS811_ADDR);
float CCS811CO2 = 0;
float CCS811TVOC = 0;

// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
BME280 myBME280;
float BMEtempC = 0;
float BMEhumid = 0;
float BMEaltitudeM = 0;
float BMEpressure = 0;

// Date and Time
// PCF8523 Precision RTC 
RTC_PCF8523 rtc;
String dateRTC = "";
String timeRTC = "";

// microSD Card
const int chipSelect = 33;
String zzzzzz = "";

// Mountable Slide Switch
int iSS1 = 16;
// State
int iSS1State = 0;

// ESP32 HardwareSerial
HardwareSerial tGPS(2);

// GPS Receiver
#define gpsRXPIN 14
// This one is unused and doesnt have a conection
#define gpsTXPIN 32
// The TinyGPS++ object
TinyGPSPlus gps;
float TargetLat;
float TargetLon;
int GPSStatus = 0;

// Rotary Switch - 10 Position
// Number 1 => 10
int iRotNum = A0;
// iRotVal - Value 
int iRotVal = 0;
// Number
int z = 0;

// Gas Sensors MQ
// Hydrogen Gas Sensor - MQ-8
int iMQ8 = A1;
int iMQ8Raw = 0;
int iMQ8ppm = 0;
// Two points are taken from the curve in datasheet
// With these two points, a line is formed which is "approximately equivalent" to the original curve
float H2Curve[3] = {2.3, 0.93,-1.44};

// Software Version Information
String sver = "15-06";
// EEPROM Unique ID Information
#define EEPROM_SIZE 64
String uid = "";

void loop() {

  // Receives NEMA data from GPS receiver
  isGPS();
  
  // Date and Time 
  isRTC();
  
  // SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
  isBME280();

  // SparkFun CCS811 - eCO2 & tVOC
  isCCS811();

  // Gas Sensors MQ
  isGasSensor();

  // Rotary Switch
  isRot();

  // Slide Switch
  // Read the state of the iSS1 value
  iSS1State = digitalRead(iSS1);
  
  // If it is the Slide Switch State is HIGH
  if (iSS1State == HIGH) {

    // iLEDGreen
    digitalWrite(iLEDGreen,  HIGH );
    
    // microSD Card
    isSD();

  } else {

    // iLEDGreen
    digitalWrite(iLEDGreen,  LOW );
  
  }

  delay( 1000 );
  
}

getBME280.ino

// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
// isBME280 - Humidity, Temperature, Altitude and Barometric Pressure
void isBME280(){

  // Temperature Celsius
  BMEtempC = myBME280.readTempC();
  // Humidity
  BMEhumid = myBME280.readFloatHumidity();
  // Altitude Meters
  BMEaltitudeM = (myBME280.readFloatAltitudeMeters(), 2);
  // Barometric Pressure
  BMEpressure = myBME280.readFloatPressure();
  
}

getCCS811.ino

// CCS811 - eCO2 & tVOC
// isCCS811 - eCO2 & tVOC
void isCCS811(){

  // This sends the temperature & humidity data to the CCS811
  myCCS811.setEnvironmentalData(BMEhumid, BMEtempC);

  // Calling this function updates the global tVOC and eCO2 variables
  myCCS811.readAlgorithmResults();

  // eCO2 Concentration
  CCS811CO2 = myCCS811.getCO2();
  
  // tVOC Concentration
  CCS811TVOC = myCCS811.getTVOC();
  
}

getDisplay.ino

// Display
// SHARP Memory Display - UID
void isDisplayUID() {

    // Text Display 
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(3);
    display.setTextColor(BLACK);
    // Don Luc Electronics
    display.setCursor(0,10);
    display.println( "Don Luc" );
    display.setTextSize(2);
    display.setCursor(0,40);
    display.println( "Electronics" );
    // Version
    display.setTextSize(3);
    display.setCursor(0,70);
    display.println( "Version" );
    display.setTextSize(2);
    display.setCursor(0,100);   
    display.println( sver );
    // EEPROM Unique ID
    display.setTextSize(1);
    display.setCursor(0,130);
    display.println( "EEPROM Unique ID" );
    display.setTextSize(2);
    display.setCursor(0,145);
    display.println( uid );
    // Refresh
    display.refresh();
    delay( 100 );
    
}
// Display Environmental
void isDisplayEnvironmental(){

    // Text Display Environmental
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(1);
    display.setTextColor(BLACK);
    // Temperature Celsius
    display.setCursor(0,0);
    display.println( "Temperature Celsius" );
    display.setCursor(0,10);
    display.print( BMEtempC );
    display.println( " C" );
    // Humidity
    display.setCursor(0,20);
    display.println( "Humidity" );
    display.setCursor(0,30);
    display.print( BMEhumid );
    display.println( "%" );
    // Altitude Meters
    display.setCursor(0,40);
    display.println( "Altitude Meters" );
    display.setCursor(0,50);
    display.print( BMEaltitudeM );
    display.println( " m" );
    // Pressure
    display.setCursor(0,60);    
    display.println( "Barometric Pressure" );
    display.setCursor(0,70);
    display.print( BMEpressure );
    display.println( " Pa" );
    // eCO2 Concentration
    display.setCursor(0,80);
    display.println( "eCO2 Concentration" );
    display.setCursor(0,90);
    display.print( CCS811CO2 );
    display.println( " ppm" );
    // tVOC Concentration
    display.setCursor(0,100);
    display.println( "tVOC Concentration" );
    display.setCursor(0,110);
    display.print( CCS811TVOC );
    display.println( " ppb" );
    // Date
    display.setCursor(0,120);
    display.println( dateRTC );
    // Time
    display.setCursor(0,130);
    display.println( timeRTC );
    // GPS Status
    display.setCursor(0,140);
    display.println( GPSStatus );
    // Target Latitude
    display.setCursor(0,150);
    display.println( TargetLat );
    // Target Longitude
    display.setCursor(0,160);
    display.println( TargetLon );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display Date
void isDisplayDate() {

    // Text Display Date
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // Date
    display.setCursor(0,5);
    display.println( dateRTC );
    // Time
    display.setCursor(0,30);
    display.println( timeRTC );
    // GPS Status
    display.setCursor(0,60);
    display.print( "GPS: " );
    display.println( GPSStatus );
    // Target Latitude
    display.setCursor(0,80);
    display.println( "Latitude" );
    display.setCursor(0,100);
    display.println( TargetLat );
    // Target Longitude
    display.setCursor(0,120);
    display.println( "Longitude" );
    display.setCursor(0,140);
    display.println( TargetLon );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display BME280
void isDisplayBME280() {

     // Text Display BME280
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // Temperature Celsius
    display.setCursor(0,10);
    display.println( "Temperature" );
    display.setCursor(0,30);
    display.print( BMEtempC );
    display.println( " C" );
    // Humidity
    display.setCursor(0,50);
    display.println( "Humidity" );
    display.setCursor(0,70);
    display.print( BMEhumid );
    display.println( "%" );
    // Altitude Meters
    display.setCursor(0,90);
    display.println( "Altitude M" );
    display.setCursor(0,110);
    display.print( BMEaltitudeM );
    display.println( " m" );
    // Pressure
    display.setCursor(0,130);    
    display.println( "Barometric" );
    display.setCursor(0,150);
    display.print( BMEpressure );
    display.println( "Pa" );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display CCS811 - eCO2 & tVOC
void isDisplayCCS811() {

    // Text Display CCS811
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // eCO2 Concentration
    display.setCursor(0,10);
    display.println( "eCO2" );
    display.setCursor(0,30);
    display.print( CCS811CO2 );
    display.println( " ppm" );
    // tVOC Concentration
    display.setCursor(0,60);
    display.println( "tVOC" );
    display.setCursor(0,80);
    display.print( CCS811TVOC );
    display.println( " ppb" );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display Gas Sensors MQ
void isDisplayMQ() {

    // Text Display MQ
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // Gas Sensors MQ
    display.setCursor(0,5);
    display.println( "Gas H2 MQ8" );
    display.setCursor(0,25);
    display.print( iMQ8ppm );
    display.println( " ppm" );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display Z
void isDisplayZ() {

    // Text Display Z
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(3);
    display.setTextColor(BLACK);
    // Z
    display.setCursor(0,10);
    display.print( "Z: " );
    display.println( z );
    // Refresh
    display.refresh();
    delay( 100 );

}

getEEPROM.ino

// EEPROM
// isUID EEPROM Unique ID
void isUID()
{
  
  // Is Unit ID
  uid = "";
  for (int x = 0; x < 5; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getGPS.ino

// GPS Receiver
// Setup GPS
void setupGPS() {

  // Setup GPS
  tGPS.begin(  9600 , SERIAL_8N1, gpsRXPIN, gpsTXPIN );
  
}
// isGPS
void isGPS(){

  // Receives NEMA data from GPS receiver
  // This sketch displays information every time a new sentence is correctly encoded.
  while ( tGPS.available() > 0)
    if (gps.encode( tGPS.read() ))
    {
     displayInfo();
    }
  
  if (millis() > 5000 && gps.charsProcessed() < 10)
  {
    while(true);
  }

}
// GPS Vector Pointer Target
void displayInfo(){

  // Location
  if (gps.location.isValid())
  {
    
    TargetLat = gps.location.lat();
    TargetLon = gps.location.lng();
    GPSStatus = 2;
    
  }
  else
  {

    GPSStatus = 0;
    
  }

}

getGasSensorMQ.ino

// Gas Sensors MQ
// Gas Sensor
void isGasSensor() {

  // Read in analog value from each gas sensors
  
  // Hydrogen Gas Sensor - MQ-8
  iMQ8Raw = analogRead( iMQ8 );
  
  // Caclulate the PPM of each gas sensors

  // Hydrogen Gas Sensor - MQ-8
  iMQ8ppm = isMQ8( iMQ8Raw ); 
  
}
// Hydrogen Gas Sensor - MQ-8 - PPM
int isMQ8(double rawValue) {

  // RvRo
  double RvRo = rawValue * (3.3 / 1023);

  return (pow(4.7,( ((log(RvRo)-H2Curve[1])/H2Curve[2]) + H2Curve[0])));
  
}

getRTC.ino

// Date & Time
// PCF8523 Precision RTC 
void setupRTC() {

  // Date & Time
  // pcf8523 Precision RTC   
  if (! rtc.begin()) {
    while (1);
  }  
  
  if (! rtc.initialized()) {
    // Following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2018, 9, 29, 12, 17, 0));
  }
  
}
// Date and Time RTC
void isRTC () {

  // Date and Time
  dateRTC = "";
  timeRTC = "";
  DateTime now = rtc.now();
  
  // Date
  dateRTC = now.year(), DEC; 
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.month(), DEC;
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.day(), DEC;
  
  // Time
  timeRTC = now.hour(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.minute(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.second(), DEC;
  
}

getRot.ino

// Rotary Switch
// isRot - iRotVal - Value
void isRot() {

  // Rotary Switch
  z = analogRead( iRotNum );
  
  // Rotary Switch - 10 Position
  // Number 1 => 10
  if ( z >= 3600 ) {

    // Z
    iRotVal = 10;
    
  } else if ( z >= 3200 ) {

    // Z
    iRotVal = 9;
    
  } else if ( z >= 2700 ) {

    // Z
    iRotVal = 8;
    
  } else if ( z >= 2400 ) {

    // Z
    iRotVal = 7;
    
  } else if ( z >= 2000 ) {

    // Z
    iRotVal = 6;
    
  } else if ( z >= 1600 ) {

    // Z
    iRotVal = 5;
    
  } else if ( z >= 1200 ) {

    // Z
    iRotVal = 4;
    
  } else if ( z >= 900 ) {

    // Z
    iRotVal = 3;
    
  } else if ( z >= 500 ) {

    // Z
    iRotVal = 2;
    
  } else {

    // Z
    iRotVal = 1;
    
  }

  // Range Value
  switch ( iRotVal ) {
    case 1:

      // Display Environmental
      isDisplayEnvironmental();
      
      break;
    case 2:

      // Display Date
      isDisplayDate();
      
      break;
    case 3:

      // Display BME280
      isDisplayBME280();
      
      break;  
    case 4:

      // Display CCS811 - eCO2 & tVOC
      isDisplayCCS811();
      
      break;
    case 5:

      // Display Gas Sensors MQ
      isDisplayMQ();
      
      break;
    case 6:

      // Display UID
      isDisplayUID();
      
      break;       
    case 7:

      // Z
      isDisplayZ();
      
      break; 
    case 8:
         
      // Z
      isDisplayZ();
      
      break; 
    case 9:

      // Z
      isDisplayZ();
      
      break;
    case 10:

      // Z
      isDisplayZ();
      
      break;
  }

}

getSD.ino

// microSD Card
// microSD Setup
void setupSD() {

    // microSD Card
    pinMode( chipSelect , OUTPUT );
    if(!SD.begin( chipSelect )){
        ;  
        return;
    }
    
    uint8_t cardType = SD.cardType();

    // CARD NONE
    if(cardType == CARD_NONE){
        ; 
        return;
    }

    // SD Card Type
    if(cardType == CARD_MMC){
        ; 
    } else if(cardType == CARD_SD){
        ; 
    } else if(cardType == CARD_SDHC){
        ; 
    } else {
        ; 
    } 

    // Size
    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
  
}
// microSD Card
void isSD() {

  zzzzzz = "";

  // EEPROM Unique ID|Version|Date|Time|GPS Status|Target Latitude|Target Longitude|Temperature Celsius|Humidity|Altitude Meters|Barometric Pressure|eCO2 Concentration|tVOC Concentration|H2 Gas Sensor MQ-8
  zzzzzz = uid + "|" + sver + "|" + dateRTC + "|" + timeRTC + "|" + GPSStatus + "|" + TargetLat + "|" + TargetLon + "|" + BMEtempC + "|" + BMEhumid + "|" + BMEaltitudeM + "|" + BMEpressure + "|" + CCS811CO2 + "|" + CCS811TVOC + "|" + iMQ8ppm + "|\r";

  char msg[zzzzzz.length() + 1];

  zzzzzz.toCharArray(msg, zzzzzz.length() + 1);

  // Append File
  appendFile(SD, "/espdata.txt", msg );
  
}
// List Dir
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
    
    // List Dir
    dirname;
    
    File root = fs.open(dirname);
    
    if(!root){
        return;
    }
    
    if(!root.isDirectory()){
        return;
    }

    File file = root.openNextFile();
    
    while(file){
        if(file.isDirectory()){
            file.name();
            if(levels){
                listDir(fs, file.name(), levels -1);
            }
        } else {
            file.name();
            file.size();
        }
        file = root.openNextFile();
    }
    
}
// Write File
void writeFile(fs::FS &fs, const char * path, const char * message){
    
    // Write File
    path;
    
    File file = fs.open(path, FILE_WRITE);
    
    if(!file){
        return;
    }
    
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    
    file.close();
    
}
// Append File
void appendFile(fs::FS &fs, const char * path, const char * message){
    
    // Append File
    path;
    
    File file = fs.open(path, FILE_APPEND);
    
    if(!file){
        return;
    }
    
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    
    file.close();
    
}

setup.ino

// Setup
void setup() {

  // EEPROM Size
  EEPROM.begin(EEPROM_SIZE);
  
  // EEPROM Unique ID
  isUID();
  
  // GPS Receiver
  // Setup GPS
  setupGPS();
  
  // SHARP Display Start & Clear the Display
  display.begin();
  // Clear Display
  display.clearDisplay();
  
  // Display UID
  isDisplayUID();

  // Wire - Inialize I2C Hardware
  Wire.begin();

  // SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
  myBME280.begin();
  
  // CCS811 - eCO2 & tVOC
  myCCS811.begin();

  // Initialize the LED Green
  pinMode(iLEDGreen, OUTPUT);

  // Date & Time RTC
  // PCF8523 Precision RTC 
  setupRTC();
  
  // Date & Time
  isRTC();
  
  // microSD Card
  setupSD();

  // Slide Switch
  pinMode(iSS1, INPUT);

  delay( 5000 );

}

Technology Experience

  • Research & Development (R & D)
  • Desktop Applications (Windows, OSX, Linux, Multi-OS, Multi-Tier, etc…)
  • Mobile Applications (Android, iOS, Blackberry, Windows Mobile, Windows CE, etc…)
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Don Luc

Posted in #15 - Environment, Adafruit, Digital Electronics, ESP32, Fritzing, Microcontrollers, Pololu, Program ESP32, Projects, SparkFun | Tagged , , , , , , , , , , , , , , , , | Leave a comment

Project #15: Environment – SparkFun Rotary Switch – 10 Position – Mk05

Published May 1, 2020 | By DonLuc

——

#DonLuc #Environment #Microcontrollers #ESP32 #Adalogger #GPS #RotarySwitch #SparkFun #Fritzing #Programming #Adafruit #Arduino #Electronics #Consultant #Vlog #Aphasia

——

Environment

——

Environment

——

Environment

——

DL2004Mk13

1 x SparkFun Thing Plus – ESP32 WROOM
1 x Adafruit SHARP Memory Display
1 x SparkFun Environmental Combo Breakout – CCS811/BME280
1 x Adafruit Adalogger FeatherWing – RTC + SD
1 x SparkFun GPS Receiver – GP-20U7
1 x CR1220 12mm Lithium Battery
1 x 32Gb microSD Card
1 x Mountable Slide Switch
1 x SparkFun Rotary Switch – 10 Position
1 x Black Knob
1 x Breadboard Solderable
1 x Qwiic Cable – 100mm
1 x LED Green
11 x 1K Ohm
1 x 10K Ohm
2 x Jumper Wires 3in M/M
5 x Jumper Wires 6in M/M
16 x Wire Solid Core – 22 AWG
1 x Full-Size Breadboard
1 x SparkFun Cerberus USB Cable

SparkFun Thing Plus – ESP32 WROOM

LEG – Digital 21
SCK – Digital 13
MOS – Digital 12
SSD – Digital 27
SDA – Digital 23
SCL – Digital 22
SD1 – Digital 33
SC2 – Digital 5
MO2 – Digital 18
MI2 – Digital 19
SS1 – Digital 16
ROT – Digital A1
GPS – Digital 4
VIN – +3.3V
GND – GND

DL2004Mk13p.ino

// ***** Don Luc Electronics © *****
// Software Version Information
// Project #15: Environment - SparkFun Rotary Switch - 10 Position - Mk05
// 04-13
// DL2004Mk13p.ino 15-05
// EEPROM with Unique ID
// 1 x SparkFun Thing Plus - ESP32 WROOM
// 1 x Adafruit SHARP Memory Display
// 1 x SparkFun Environmental Combo Breakout - CCS811/BME280
// 1 x Adafruit Adalogger FeatherWing - RTC + SD
// 1 x SparkFun GPS Receiver - GP-20U7
// 1 x CR1220 12mm Lithium Battery
// 1 x 32Gb microSD Card
// 1 x Mountable Slide Switch
// 1 x SparkFun Rotary Switch - 10 Position
// 1 x Black Knob
// 1 x Breadboard Solderable
// 1 x Qwiic Cable - 100mm
// 1 x LED Green
// 11 x 1K Ohm
// 1 x 10K Ohm
// 2 x Jumper Wires 3in M/M
// 5 x Jumper Wires 6in M/M
// 16 x Wire Solid Core - 22 AWG
// 1 x Full-Size Breadboard
// 1 x SparkFun Cerberus USB Cable

// Include the Library Code
// EEPROM Library to Read and Write EEPROM with Unique ID for Unit
#include "EEPROM.h"
// Wire
#include <Wire.h>
// SHARP Memory Display
#include <Adafruit_SharpMem.h>
#include <Adafruit_GFX.h>
// SparkFun CCS811 - eCO2 & tVOC
#include <SparkFunCCS811.h>
// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
#include <SparkFunBME280.h>
// Date and Time
#include "RTClib.h"
// SD Card
#include "FS.h"
#include "SD.h"
#include "SPI.h"
// GPS Receiver
#include <TinyGPS++.h>
// Hardware Serial
#include <HardwareSerial.h>

// LED Green
int iLEDGreen = 21;

// SHARP Memory Display
// any pins can be used
#define SHARP_SCK  13
#define SHARP_MOSI 12
#define SHARP_SS   27
// Set the size of the display here - 144x168
Adafruit_SharpMem display(SHARP_SCK, SHARP_MOSI, SHARP_SS, 144, 168);
// The currently-available SHARP Memory Display (144x168 pixels)
// requires > 4K of microcontroller RAM; it WILL NOT WORK on Arduino Uno
// or other <4K "classic" devices!
#define BLACK 0
#define WHITE 1
// 1/2 of lesser of display width or height
int minorHalfSize; 

// SparkFun CCS811 - eCO2 & tVOC
// Default I2C Address
#define CCS811_ADDR 0x5B 
CCS811 myCCS811(CCS811_ADDR);
float CCS811CO2 = 0;
float CCS811TVOC = 0;

// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
BME280 myBME280;
float BMEtempC = 0;
float BMEhumid = 0;
float BMEaltitudeM = 0;
float BMEpressure = 0;

// Date and Time
// PCF8523 Precision RTC 
RTC_PCF8523 rtc;
String dateRTC = "";
String timeRTC = "";

// microSD Card
const int chipSelect = 33;
String zzzzzz = "";

// Mountable Slide Switch
int iSS1 = 16;
// State
int iSS1State = 0;

// ESP32 HardwareSerial
HardwareSerial tGPS(2);

// GPS Receiver
#define gpsRXPIN 4
// This one is unused and doesnt have a conection
#define gpsTXPIN 36
// The TinyGPS++ object
TinyGPSPlus gps;
float TargetLat;
float TargetLon;
int GPSStatus = 0;

// Rotary Switch - 10 Position
// Number 1 => 10
int iRotNum = A1;
// iRotVal - Value 
int iRotVal = 0;
// Number
int z = 0;

// Software Version Information
String sver = "15-05";
// EEPROM Unique ID Information
#define EEPROM_SIZE 64
String uid = "";

void loop() {

  // Receives NEMA data from GPS receiver
  isGPS();
  
  // Date and Time 
  isRTC();
  
  // SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
  isBME280();

  // SparkFun CCS811 - eCO2 & tVOC
  isCCS811();

  // Rotary Switch
  isRot();

  // Slide Switch
  // Read the state of the iSS1 value
  iSS1State = digitalRead(iSS1);
  
  // If it is the Slide Switch State is HIGH
  if (iSS1State == HIGH) {

    // iLEDGreen
    digitalWrite(iLEDGreen,  HIGH );
    
    // microSD Card
    isSD();

  } else {

    // iLEDGreen
    digitalWrite(iLEDGreen,  LOW );
  
  }

  delay( 1000 );
  
}

getBME280.ino

// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
// isBME280 - Humidity, Temperature, Altitude and Barometric Pressure
void isBME280(){

  // Temperature Celsius
  BMEtempC = myBME280.readTempC();
  // Humidity
  BMEhumid = myBME280.readFloatHumidity();
  // Altitude Meters
  BMEaltitudeM = (myBME280.readFloatAltitudeMeters(), 2);
  // Barometric Pressure
  BMEpressure = myBME280.readFloatPressure();
  
}

getCCS811.ino

// CCS811 - eCO2 & tVOC
// isCCS811 - eCO2 & tVOC
void isCCS811(){

  // This sends the temperature & humidity data to the CCS811
  myCCS811.setEnvironmentalData(BMEhumid, BMEtempC);

  // Calling this function updates the global tVOC and eCO2 variables
  myCCS811.readAlgorithmResults();

  // eCO2 Concentration
  CCS811CO2 = myCCS811.getCO2();
  
  // tVOC Concentration
  CCS811TVOC = myCCS811.getTVOC();
  
}

getDisplay.ino

// Display
// SHARP Memory Display - UID
void isDisplayUID() {

    // Text Display 
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(3);
    display.setTextColor(BLACK);
    // Don Luc Electronics
    display.setCursor(0,10);
    display.println( "Don Luc" );
    display.setTextSize(2);
    display.setCursor(0,40);
    display.println( "Electronics" );
    // Version
    display.setTextSize(3);
    display.setCursor(0,70);
    display.println( "Version" );
    display.setTextSize(2);
    display.setCursor(0,100);   
    display.println( sver );
    // EEPROM Unique ID
    display.setTextSize(1);
    display.setCursor(0,130);
    display.println( "EEPROM Unique ID" );
    display.setTextSize(2);
    display.setCursor(0,145);
    display.println( uid );
    // Refresh
    display.refresh();
    delay( 100 );
    
}
// Display Environmental
void isDisplayEnvironmental(){

    // Text Display Environmental
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(1);
    display.setTextColor(BLACK);
    // Temperature Celsius
    display.setCursor(0,0);
    display.println( "Temperature Celsius" );
    display.setCursor(0,10);
    display.print( BMEtempC );
    display.println( " C" );
    // Humidity
    display.setCursor(0,20);
    display.println( "Humidity" );
    display.setCursor(0,30);
    display.print( BMEhumid );
    display.println( "%" );
    // Altitude Meters
    display.setCursor(0,40);
    display.println( "Altitude Meters" );
    display.setCursor(0,50);
    display.print( BMEaltitudeM );
    display.println( " m" );
    // Pressure
    display.setCursor(0,60);    
    display.println( "Barometric Pressure" );
    display.setCursor(0,70);
    display.print( BMEpressure );
    display.println( " Pa" );
    // eCO2 Concentration
    display.setCursor(0,80);
    display.println( "eCO2 Concentration" );
    display.setCursor(0,90);
    display.print( CCS811CO2 );
    display.println( " ppm" );
    // tVOC Concentration
    display.setCursor(0,100);
    display.println( "tVOC Concentration" );
    display.setCursor(0,110);
    display.print( CCS811TVOC );
    display.println( " ppb" );
    // Date
    display.setCursor(0,120);
    display.println( dateRTC );
    // Time
    display.setCursor(0,130);
    display.println( timeRTC );
    // GPS Status
    display.setCursor(0,140);
    display.println( GPSStatus );
    // Target Latitude
    display.setCursor(0,150);
    display.println( TargetLat );
    // Target Longitude
    display.setCursor(0,160);
    display.println( TargetLon );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display Date
void isDisplayDate() {

    // Text Display Date
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // Date
    display.setCursor(0,5);
    display.println( dateRTC );
    // Time
    display.setCursor(0,30);
    display.println( timeRTC );
    // GPS Status
    display.setCursor(0,60);
    display.print( "GPS: " );
    display.println( GPSStatus );
    // Target Latitude
    display.setCursor(0,80);
    display.println( "Latitude" );
    display.setCursor(0,100);
    display.println( TargetLat );
    // Target Longitude
    display.setCursor(0,120);
    display.println( "Longitude" );
    display.setCursor(0,140);
    display.println( TargetLon );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display BME280
void isDisplayBME280() {

     // Text Display BME280
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // Temperature Celsius
    display.setCursor(0,10);
    display.println( "Temperature" );
    display.setCursor(0,30);
    display.print( BMEtempC );
    display.println( " C" );
    // Humidity
    display.setCursor(0,50);
    display.println( "Humidity" );
    display.setCursor(0,70);
    display.print( BMEhumid );
    display.println( "%" );
    // Altitude Meters
    display.setCursor(0,90);
    display.println( "Altitude M" );
    display.setCursor(0,110);
    display.print( BMEaltitudeM );
    display.println( " m" );
    // Pressure
    display.setCursor(0,130);    
    display.println( "Barometric" );
    display.setCursor(0,150);
    display.print( BMEpressure );
    display.println( "Pa" );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display CCS811 - eCO2 & tVOC
void isDisplayCCS811() {

    // Text Display CCS811
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // eCO2 Concentration
    display.setCursor(0,10);
    display.println( "eCO2" );
    display.setCursor(0,30);
    display.print( CCS811CO2 );
    display.println( " ppm" );
    // tVOC Concentration
    display.setCursor(0,60);
    display.println( "tVOC" );
    display.setCursor(0,80);
    display.print( CCS811TVOC );
    display.println( " ppb" );
    // Refresh
    display.refresh();
    delay( 100 );

}
// Display Z
void isDisplayZ() {

    // Text Display Z
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(3);
    display.setTextColor(BLACK);
    // Z
    display.setCursor(0,10);
    display.print( "Z: " );
    display.println( z );
    // Refresh
    display.refresh();
    delay( 100 );

}

getEEPROM.ino

// EEPROM
// isUID EEPROM Unique ID
void isUID()
{
  
  // Is Unit ID
  uid = "";
  for (int x = 0; x < 5; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getGPS.ino

// GPS Receiver
// Setup GPS
void setupGPS() {

  // Setup GPS
  tGPS.begin(  9600 , SERIAL_8N1, gpsRXPIN, gpsTXPIN );
  
}
// isGPS
void isGPS(){

  // Receives NEMA data from GPS receiver
  // This sketch displays information every time a new sentence is correctly encoded.
  while ( tGPS.available() > 0)
    if (gps.encode( tGPS.read() ))
    {
     displayInfo();
    }
  
  if (millis() > 5000 && gps.charsProcessed() < 10)
  {
    while(true);
  }

}
// GPS Vector Pointer Target
void displayInfo(){

  // Location
  if (gps.location.isValid())
  {
    
    TargetLat = gps.location.lat();
    TargetLon = gps.location.lng();
    GPSStatus = 2;
    
  }
  else
  {

    GPSStatus = 0;
    
  }

}

getRTC.ino

// Date & Time
// PCF8523 Precision RTC 
void setupRTC() {

  // Date & Time
  // pcf8523 Precision RTC   
  if (! rtc.begin()) {
    while (1);
  }  
  
  if (! rtc.initialized()) {
    // Following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2018, 9, 29, 12, 17, 0));
  }
  
}
// Date and Time RTC
void isRTC () {

  // Date and Time
  dateRTC = "";
  timeRTC = "";
  DateTime now = rtc.now();
  
  // Date
  dateRTC = now.year(), DEC; 
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.month(), DEC;
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.day(), DEC;
  
  // Time
  timeRTC = now.hour(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.minute(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.second(), DEC;
  
}

getRot.ino

// Rotary Switch
// isRot - iRotVal - Value
void isRot() {

  // Rotary Switch
  z = analogRead( iRotNum );
  
  // Rotary Switch - 10 Position
  // Number 1 => 10
  if ( z >= 3600 ) {

    // Z
    iRotVal = 10;
    
  } else if ( z >= 3200 ) {

    // Z
    iRotVal = 9;
    
  } else if ( z >= 2700 ) {

    // Z
    iRotVal = 8;
    
  } else if ( z >= 2400 ) {

    // Z
    iRotVal = 7;
    
  } else if ( z >= 2000 ) {

    // Z
    iRotVal = 6;
    
  } else if ( z >= 1600 ) {

    // Z
    iRotVal = 5;
    
  } else if ( z >= 1200 ) {

    // Z
    iRotVal = 4;
    
  } else if ( z >= 900 ) {

    // Z
    iRotVal = 3;
    
  } else if ( z >= 500 ) {

    // Z
    iRotVal = 2;
    
  } else {

    // Z
    iRotVal = 1;
    
  }

  // Range Value
  switch ( iRotVal ) {
    case 1:

      // Display Environmental
      isDisplayEnvironmental();
      
      break;
    case 2:

      // Display Date
      isDisplayDate();
      
      break;
    case 3:

      // Display BME280
      isDisplayBME280();
      
      break;  
    case 4:

      // Display CCS811 - eCO2 & tVOC
      isDisplayCCS811();
      
      break;
    case 5:

      // Display UID
      isDisplayUID();
      
      break;
    case 6:

      // Z
      isDisplayZ();
      
      break;       
    case 7:

      // Z
      isDisplayZ();
      
      break; 
    case 8:
         
      // Z
      isDisplayZ();
      
      break; 
    case 9:

      // Z
      isDisplayZ();
      
      break;
    case 10:

      // Z
      isDisplayZ();
      
      break;
  }

}

getSD.ino

// microSD Card
// microSD Setup
void setupSD() {

    // microSD Card
    pinMode( chipSelect , OUTPUT );
    if(!SD.begin( chipSelect )){
        ;  
        return;
    }
    
    uint8_t cardType = SD.cardType();

    if(cardType == CARD_NONE){
        ; 
        return;
    }

    //Serial.print("SD Card Type: ");
    if(cardType == CARD_MMC){
        ; 
    } else if(cardType == CARD_SD){
        ; 
    } else if(cardType == CARD_SDHC){
        ; 
    } else {
        ; 
    } 

    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
  
}
// microSD Card
void isSD() {

  zzzzzz = "";

  // EEPROM Unique ID|Version|Date|Time|GPS Status|Target Latitude|Target Longitude|Temperature Celsius|Humidity|Altitude Meters|Barometric Pressure|eCO2 Concentration|tVOC Concentration
  zzzzzz = uid + "|" + sver + "|" + dateRTC + "|" + timeRTC + "|" + GPSStatus + "|" + TargetLat + "|" + TargetLon + "|" + BMEtempC + "|" + BMEhumid + "|" + BMEaltitudeM + "|" + BMEpressure + "|" + CCS811CO2 + "|" + CCS811TVOC + "|\r";

  char msg[zzzzzz.length() + 1];

  zzzzzz.toCharArray(msg, zzzzzz.length() + 1);

  appendFile(SD, "/espdata.txt", msg );
  
}
// List Dir
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
    
    dirname;
    
    File root = fs.open(dirname);
    
    if(!root){
        return;
    }
    
    if(!root.isDirectory()){
        return;
    }

    File file = root.openNextFile();
    
    while(file){
        if(file.isDirectory()){
            file.name();
            if(levels){
                listDir(fs, file.name(), levels -1);
            }
        } else {
            file.name();
            file.size();
        }
        file = root.openNextFile();
    }
    
}
// Write File
void writeFile(fs::FS &fs, const char * path, const char * message){
    
    path;
    
    File file = fs.open(path, FILE_WRITE);
    
    if(!file){
        return;
    }
    
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    
    file.close();
    
}
// Append File
void appendFile(fs::FS &fs, const char * path, const char * message){
    
    path;
    
    File file = fs.open(path, FILE_APPEND);
    
    if(!file){
        return;
    }
    
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    
    file.close();
    
}

setup.ino

// Setup
void setup() {

  // EEPROM Size
  EEPROM.begin(EEPROM_SIZE);
  
  // EEPROM Unique ID
  isUID();
  
  // GPS Receiver
  // Setup GPS
  setupGPS();
  
  // SHARP Display Start & Clear the Display
  display.begin();
  // Clear Display
  display.clearDisplay();
  
  // Display UID
  isDisplayUID();

  // Wire - Inialize I2C Hardware
  Wire.begin();

  // SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
  myBME280.begin();
  
  // CCS811 - eCO2 & tVOC
  myCCS811.begin();

  // Initialize the LED Green
  pinMode(iLEDGreen, OUTPUT);

  // Date & Time RTC
  // PCF8523 Precision RTC 
  setupRTC();
  
  // Date & Time
  isRTC();
  
  // microSD Card
  setupSD();

  // Slide Switch
  pinMode(iSS1, INPUT);

  delay( 5000 );

}

Technology Experience

  • Research & Development (R & D)
  • Desktop Applications (Windows, OSX, Linux, Multi-OS, Multi-Tier, etc…)
  • Mobile Applications (Android, iOS, Blackberry, Windows Mobile, Windows CE, etc…)
  • Web Applications (LAMP, Scripting, Java, ASP, ASP.NET, RoR, Wakanda, etc…)
  • Social Media Programming & Integration (Facebook, Twitter, YouTube, Pinterest, etc…)
  • Content Management Systems (WordPress, Drupal, Joomla, Moodle, etc…)
  • Bulletin Boards (phpBB, SMF, Vanilla, jobberBase, etc…)
  • eCommerce (WooCommerce, OSCommerce, ZenCart, PayPal Shopping Cart, etc…)

Instructor

  • DOS, Windows, OSX, Linux, iOS, Android, Multi-OS
  • Linux-Apache-PHP-MySQL
  • Robotics
  • Arduino
  • Raspberry Pi
  • Espressif

Follow Us

The Alpha Geek

Why “The Alpha Geek”?

Aphasia
https://www.donluc.com/?page_id=2149

J. Luc Paquin – Curriculum Vitae
https://www.donluc.com/DLHackster/LucPaquinCVEngMk2020a.pdf

Web: https://www.donluc.com/
Web: http://www.jlpconsultants.com/
Web: https://www.donluc.com/DLHackster/
Web: https://www.hackster.io/neosteam-labs
Facebook: https://www.facebook.com/neosteam.labs.9/
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Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/

Don Luc

Posted in #15 - Environment, Adafruit, Digital Electronics, ESP32, Fritzing, Microcontrollers, Program ESP32, Projects, SparkFun | Tagged , , , , , , , , , , , , , , | Leave a comment

Project #15: Environment – SparkFun GPS Receiver – GP-20U7 – Mk04

Published April 24, 2020 | By DonLuc

——

#DonLuc #Environment #Microcontrollers #ESP32 #Adalogger #GPS #SparkFun #Fritzing #Programming #Adafruit #Arduino #Electronics #Consultant #Vlog #Aphasia

——

Environment

——

Environment

——

Environment

——

DL2004Mk11

1 x SparkFun Thing Plus – ESP32 WROOM
1 x Adafruit SHARP Memory Display
1 x SparkFun Environmental Combo Breakout – CCS811/BME280
1 x Adafruit Adalogger FeatherWing – RTC + SD
1 x SparkFun GPS Receiver – GP-20U7
1 x CR1220 12mm Lithium Battery
1 x 32Gb microSD Card
1 x Mountable Slide Switch
1 x Qwiic Cable – 100mm
1 x LED Green
1 x 10K Ohm
2 x Jumper Wires 3in M/M
5 x Jumper Wires 6in M/M
13 x Wire Solid Core – 22 AWG
1 x Full-Size Breadboard
1 x SparkFun Cerberus USB Cable

SparkFun Thing Plus – ESP32 WROOM

LEG – Digital 21
SCK – Digital 13
MOS – Digital 12
SSD – Digital 27
SDA – Digital 23
SCL – Digital 22
SD1 – Digital 33
SC2 – Digital 5
MO2 – Digital 18
MI2 – Digital 19
SS1 – Digital 16
GPS – Digital 4
VIN – +3.3V
GND – GND

DL2004Mk11p.ino

// ***** Don Luc Electronics © *****
// Software Version Information
// Project #15: Environment - Adafruit Adalogger FeatherWing - RTC + SD - Mk04
// 04-11
// DL2004Mk11p.ino 15-04
// EEPROM with Unique ID
// 1 x SparkFun Thing Plus - ESP32 WROOM
// 1 x Adafruit SHARP Memory Display
// 1 x SparkFun Environmental Combo Breakout - CCS811/BME280
// 1 x Adafruit Adalogger FeatherWing - RTC + SD
// 1 x SparkFun GPS Receiver - GP-20U7
// 1 x CR1220 12mm Lithium Battery
// 1 x 32Gb microSD Card
// 1 x Mountable Slide Switch
// 1 x Qwiic Cable - 100mm
// 1 x LED Green
// 1 x 10K Ohm
// 2 x Jumper Wires 3in M/M
// 5 x Jumper Wires 6in M/M
// 13 x Wire Solid Core - 22 AWG
// 1 x Full-Size Breadboard
// 1 x SparkFun Cerberus USB Cable

// Include the Library Code
// EEPROM Library to Read and Write EEPROM with Unique ID for Unit
#include "EEPROM.h"
// Wire
#include <Wire.h>
// SHARP Memory Display
#include <Adafruit_SharpMem.h>
#include <Adafruit_GFX.h>
// SparkFun CCS811 - eCO2 & tVOC
#include <SparkFunCCS811.h>
// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
#include <SparkFunBME280.h>
// Date and Time
#include "RTClib.h"
// SD Card
#include "FS.h"
#include "SD.h"
#include "SPI.h"
// GPS Receiver
#include <TinyGPS++.h>
// Hardware Serial
#include <HardwareSerial.h>

// LED Green
int iLEDGreen = 21;

// SHARP Memory Display
// any pins can be used
#define SHARP_SCK  13
#define SHARP_MOSI 12
#define SHARP_SS   27
// Set the size of the display here - 144x168
Adafruit_SharpMem display(SHARP_SCK, SHARP_MOSI, SHARP_SS, 144, 168);
// The currently-available SHARP Memory Display (144x168 pixels)
// requires > 4K of microcontroller RAM; it WILL NOT WORK on Arduino Uno
// or other <4K "classic" devices!
#define BLACK 0
#define WHITE 1
// 1/2 of lesser of display width or height
int minorHalfSize; 

// SparkFun CCS811 - eCO2 & tVOC
// Default I2C Address
#define CCS811_ADDR 0x5B 
CCS811 myCCS811(CCS811_ADDR);
float CCS811CO2 = 0;
float CCS811TVOC = 0;

// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
BME280 myBME280;
float BMEtempC = 0;
float BMEhumid = 0;
float BMEaltitudeM = 0;
float BMEpressure = 0;

// Date and Time
// PCF8523 Precision RTC 
RTC_PCF8523 rtc;
String dateRTC = "";
String timeRTC = "";

// microSD Card
const int chipSelect = 33;
String zzzzzz = "";

// Mountable Slide Switch
int iSS1 = 16;
// State
int iSS1State = 0;

// ESP32 HardwareSerial
HardwareSerial tGPS(2);

// GPS Receiver
#define gpsRXPIN 4
// This one is unused and doesnt have a conection
#define gpsTXPIN 36
// The TinyGPS++ object
TinyGPSPlus gps;
float TargetLat;
float TargetLon;
int GPSStatus = 0;

// Software Version Information
String sver = "15-04";
// EEPROM Unique ID Information
#define EEPROM_SIZE 64
String uid = "";

void loop() {

  // Receives NEMA data from GPS receiver
  isGPS();
  
  // Date and Time 
  isRTC();
  
  // SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
  isBME280();

  // SparkFun CCS811 - eCO2 & tVOC
  isCCS811();

  // Display Environmental
  isDisplayEnvironmental();

  // Slide Switch
  // Read the state of the iSS1 value
  iSS1State = digitalRead(iSS1);
  
  // If it is the Slide Switch State is HIGH
  if (iSS1State == HIGH) {

    // iLEDGreen
    digitalWrite(iLEDGreen,  HIGH );
    
    // microSD Card
    isSD();

  } else {

    // iLEDGreen
    digitalWrite(iLEDGreen,  LOW );
  
  }

  delay( 1000 );
  
}

getBME280.ino

// SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
// isBME280 - Humidity, Temperature, Altitude and Barometric Pressure
void isBME280(){

  // Temperature Celsius
  BMEtempC = myBME280.readTempC();
  // Humidity
  BMEhumid = myBME280.readFloatHumidity();
  // Altitude Meters
  BMEaltitudeM = (myBME280.readFloatAltitudeMeters(), 2);
  // Barometric Pressure
  BMEpressure = myBME280.readFloatPressure();
  
}

getCCS811.ino

// CCS811 - eCO2 & tVOC
// isCCS811 - eCO2 & tVOC
void isCCS811(){

  // This sends the temperature & humidity data to the CCS811
  myCCS811.setEnvironmentalData(BMEhumid, BMEtempC);

  // Calling this function updates the global tVOC and eCO2 variables
  myCCS811.readAlgorithmResults();

  // eCO2 Concentration
  CCS811CO2 = myCCS811.getCO2();
  
  // tVOC Concentration
  CCS811TVOC = myCCS811.getTVOC();
  
}

getDisplay.ino

// Display
// SHARP Memory Display - UID
void isDisplayUID() {

    // Text Display 
    display.setRotation(4);
    display.setTextSize(3);
    display.setTextColor(BLACK);
    // Don Luc Electronics
    display.setCursor(0,10);
    display.println( "Don Luc" );
    display.setTextSize(2);
    display.setCursor(0,40);
    display.println( "Electronics" );
    // Version
    display.setTextSize(3);
    display.setCursor(0,70);
    display.println( "Version" );
    display.setTextSize(2);
    display.setCursor(0,100);   
    display.println( sver );
    // EEPROM Unique ID
    display.setTextSize(1);
    display.setCursor(0,130);
    display.println( "EEPROM Unique ID" );
    display.setTextSize(2);
    display.setCursor(0,145);
    display.println( uid );
    // Refresh
    display.refresh();
    delay( 100 );
    
}
// Display Environmental
void isDisplayEnvironmental(){

    // Text Display Environmental
    // Clear Display
    display.clearDisplay();
    display.setRotation(4);
    display.setTextSize(1);
    display.setTextColor(BLACK);
    // Temperature Celsius
    display.setCursor(0,0);
    display.println( "Temperature Celsius" );
    display.setCursor(0,10);
    display.print( BMEtempC );
    display.println( " C" );
    // Humidity
    display.setCursor(0,20);
    display.println( "Humidity" );
    display.setCursor(0,30);
    display.print( BMEhumid );
    display.println( "%" );
    // Altitude Meters
    display.setCursor(0,40);
    display.println( "Altitude Meters" );
    display.setCursor(0,50);
    display.print( BMEaltitudeM );
    display.println( " m" );
    // Pressure
    display.setCursor(0,60);    
    display.println( "Barometric Pressure" );
    display.setCursor(0,70);
    display.print( BMEpressure );
    display.println( " Pa" );
    // eCO2 Concentration
    display.setCursor(0,80);
    display.println( "eCO2 Concentration" );
    display.setCursor(0,90);
    display.print( CCS811CO2 );
    display.println( " ppm" );
    // tVOC Concentration
    display.setCursor(0,100);
    display.println( "tVOC Concentration" );
    display.setCursor(0,110);
    display.print( CCS811TVOC );
    display.println( " ppb" );
    // Date
    display.setCursor(0,120);
    display.println( dateRTC );
    // Time
    display.setCursor(0,130);
    display.println( timeRTC );
    // GPS Status
    display.setCursor(0,140);
    display.println( GPSStatus );
    // Target Latitude
    display.setCursor(0,150);
    display.println( TargetLat );
    // Target Longitude
    display.setCursor(0,160);
    display.println( TargetLon );
    // Refresh
    display.refresh();
    delay( 100 );

}

getEEPROM.ino

// EEPROM
// isUID EEPROM Unique ID
void isUID()
{
  
  // Is Unit ID
  uid = "";
  for (int x = 0; x < 5; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getGPS.ino

// GPS Receiver
// Setup GPS
void setupGPS() {

  // Setup GPS
  tGPS.begin(  9600 , SERIAL_8N1, gpsRXPIN, gpsTXPIN );
  
}
// isGPS
void isGPS(){

  // Receives NEMA data from GPS receiver
  // This sketch displays information every time a new sentence is correctly encoded.
  while ( tGPS.available() > 0)
    if (gps.encode( tGPS.read() ))
    {
     displayInfo();
    }
  
  if (millis() > 5000 && gps.charsProcessed() < 10)
  {
    while(true);
  }

}
// GPS Vector Pointer Target
void displayInfo(){

  // Location
  if (gps.location.isValid())
  {
    
    TargetLat = gps.location.lat();
    TargetLon = gps.location.lng();
    GPSStatus = 2;
    
  }
  else
  {

    GPSStatus = 0;
    
  }

}

getRTC.ino

// Date & Time
// PCF8523 Precision RTC 
void setupRTC() {

  // Date & Time
  // pcf8523 Precision RTC   
  if (! rtc.begin()) {
    while (1);
  }  
  
  if (! rtc.initialized()) {
    // Following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2018, 9, 29, 12, 17, 0));
  }
  
}
// Date and Time RTC
void isRTC () {

  // Date and Time
  dateRTC = "";
  timeRTC = "";
  DateTime now = rtc.now();
  
  // Date
  dateRTC = now.year(), DEC; 
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.month(), DEC;
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.day(), DEC;
  
  // Time
  timeRTC = now.hour(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.minute(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.second(), DEC;
  
}

getSD.ino

// microSD Card
// microSD Setup
void setupSD() {

    // microSD Card
    pinMode( chipSelect , OUTPUT );
    if(!SD.begin( chipSelect )){
        ;  
        return;
    }
    
    uint8_t cardType = SD.cardType();

    if(cardType == CARD_NONE){
        ; 
        return;
    }

    //Serial.print("SD Card Type: ");
    if(cardType == CARD_MMC){
        ; 
    } else if(cardType == CARD_SD){
        ; 
    } else if(cardType == CARD_SDHC){
        ; 
    } else {
        ; 
    } 

    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
  
}
// microSD Card
void isSD() {

  zzzzzz = "";

  // EEPROM Unique ID|Version|Date|Time|GPS Status|Target Latitude|Target Longitude|Temperature Celsius|Humidity|Altitude Meters|Barometric Pressure|eCO2 Concentration|tVOC Concentration
  zzzzzz = uid + "|" + sver + "|" + dateRTC + "|" + timeRTC + "|" + GPSStatus + "|" + TargetLat + "|" + TargetLon + "|" + BMEtempC + "|" + BMEhumid + "|" + BMEaltitudeM + "|" + BMEpressure + "|" + CCS811CO2 + "|" + CCS811TVOC + "|\r";

  char msg[zzzzzz.length() + 1];

  zzzzzz.toCharArray(msg, zzzzzz.length() + 1);

  appendFile(SD, "/espdata.txt", msg );
  
}
// List Dir
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
    
    dirname;
    
    File root = fs.open(dirname);
    
    if(!root){
        return;
    }
    
    if(!root.isDirectory()){
        return;
    }

    File file = root.openNextFile();
    
    while(file){
        if(file.isDirectory()){
            file.name();
            if(levels){
                listDir(fs, file.name(), levels -1);
            }
        } else {
            file.name();
            file.size();
        }
        file = root.openNextFile();
    }
    
}
// Write File
void writeFile(fs::FS &fs, const char * path, const char * message){
    
    path;
    
    File file = fs.open(path, FILE_WRITE);
    
    if(!file){
        return;
    }
    
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    
    file.close();
    
}
// Append File
void appendFile(fs::FS &fs, const char * path, const char * message){
    
    path;
    
    File file = fs.open(path, FILE_APPEND);
    
    if(!file){
        return;
    }
    
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    
    file.close();
    
}

setup.ino

// Setup
void setup() {

  // EEPROM Size
  EEPROM.begin(EEPROM_SIZE);
  
  // EEPROM Unique ID
  isUID();
  
  // GPS Receiver
  // Setup GPS
  setupGPS();
  
  // SHARP Display Start & Clear the Display
  display.begin();
  // Clear Display
  display.clearDisplay();
  
  // Display UID
  isDisplayUID();

  // Wire - Inialize I2C Hardware
  Wire.begin();

  // SparkFun BME280 - Humidity, Temperature, Altitude and Barometric Pressure
  myBME280.begin();
  
  // CCS811 - eCO2 & tVOC
  myCCS811.begin();

  // Initialize the LED Green
  pinMode(iLEDGreen, OUTPUT);

  // Date & Time RTC
  // PCF8523 Precision RTC 
  setupRTC();
  
  // Date & Time
  isRTC();
  
  // microSD Card
  setupSD();

  // Slide Switch
  pinMode(iSS1, INPUT);
  
  delay( 10000 );

}

Technology Experience

  • Research & Development (R & D)
  • Desktop Applications (Windows, OSX, Linux, Multi-OS, Multi-Tier, etc…)
  • Mobile Applications (Android, iOS, Blackberry, Windows Mobile, Windows CE, etc…)
  • Web Applications (LAMP, Scripting, Java, ASP, ASP.NET, RoR, Wakanda, etc…)
  • Social Media Programming & Integration (Facebook, Twitter, YouTube, Pinterest, etc…)
  • Content Management Systems (WordPress, Drupal, Joomla, Moodle, etc…)
  • Bulletin Boards (phpBB, SMF, Vanilla, jobberBase, etc…)
  • eCommerce (WooCommerce, OSCommerce, ZenCart, PayPal Shopping Cart, etc…)

Instructor

  • DOS, Windows, OSX, Linux, iOS, Android, Multi-OS
  • Linux-Apache-PHP-MySQL
  • Robotics
  • Arduino
  • Raspberry Pi
  • Espressif

Follow Us

The Alpha Geek

Why “The Alpha Geek”?

Aphasia
https://www.donluc.com/?page_id=2149

J. Luc Paquin – Curriculum Vitae
https://www.donluc.com/DLHackster/LucPaquinCVEngMk2020a.pdf

Web: https://www.donluc.com/
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Don Luc

Posted in #15 - Environment, Adafruit, Digital Electronics, ESP32, Fritzing, Microcontrollers, Program ESP32, Projects, SparkFun | Tagged , , , , , , , , , , , , , , , | Leave a comment

Project #11: ESP32 Feather – PIR Motion Sensor – Mk11

Published November 19, 2019 | By DonLuc

PIR Motion Sensor

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PIR Motion Sensor

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PIR Motion Sensor

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PIR Motion Sensor

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PIR Motion Sensor

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PIR Motion Sensor

Passive infrared (PIR) sensors are motion-detecting devices used in security systems across the world, even though you may not see them, they probably see you.

This is a simple to use motion sensor. Power it up and wait 1-2 seconds for the sensor to get a snapshot of the still room. If anything moves after that period, the ‘alarm’ pin will go low.

Pololu Adjustable Boost Regulator 2.5-9.5V

This powerful, adjustable boost regulator can generate an output voltage as high as 9.5 V from an input voltage as low as 1.5 V, all in a compact, 0.42″ x 0.88″ x 0.23″ package. A trimmer potentiometer lets you set the boost regulator’s output voltage to a value between 2.5 and 9.5 V.

DL1911Mk02

1 x Adafruit HUZZAH32 ESP32 Feather
1 x Adafruit SHARP Memory Display
1 x Adafruit Adalogger FeatherWing – RTC + SD
1 x CR1220 12mm Lithium Battery
1 x 8Gb Micro SD Card
1 x RHT03 Humidity and Temperature Sensor
1 x GPS Receiver GP-20U
1 x LED Green
1 x Rocker Switches
1 x 100 Ohm
1 x 10K Ohm
1 x 3.3M Ohm
1 x Antenna
1 x Lithium Ion Battery – 2.5Ah
1 x PIR Motion Sensor
1 x Pololu Adjustable Boost Regulator 2.5-9.5V
1 x LED Green 1
14 x Jumper Wires 3″ M/M
10 x Jumper Wires 6″ M/M
2 x Wire
1 x Full-Size Breadboard
2 x Breadboard
1 x SparkFun Cerberus USB Cable

Adafruit HUZZAH32 ESP32 Feather

LG0 – Digital 21
RO1 – Digital 16
RHT – Digital 17
SCK – Digital 13
MOS – Digital 12
SSD – Digital 27
SDA – Digital 23
SCL – Digital 22
SD1 – Digital 33
SC2 – Digital 5
MO2 – Digital 18
MI2 – Digital 19
GPS – Digital 4
EMF – Analog A0
BAT – Analog A13
MOT – Digital 32
LG1 – Digital 14
GND – GND
VIN – +3.3V

DL1911Mk02.ino

// ***** Don Luc Electronics *****
// Software Version Information
// Project #11: HUZZAH32 ESP32 Feather - PIR Motion - Mk11
// 11-02
// DL1911Mk02p.ino 11-11
// Adafruit HUZZAH32 ESP32 Feather Board
// SHARP Display
// LED Green
// Adalogger FeatherWing - RTC + SD
// EEPROM
// RHT03 Humidity and Temperature Sensor
// Rocker Switches
// GPS Receiver
// EMF Meter (Single Axis)
// Lithium Ion Battery - 2.5Ah
// PIR Motion
// Pololu Adjustable Boost Regulator 2.5-9.5V
// LED Green 1

// include Library Code
// SHARP Memory Display
#include <Adafruit_SharpMem.h>
#include <Adafruit_GFX.h>
// Date and Time
#include "RTClib.h"
// EEPROM library to read EEPROM with unique ID for unit
#include "EEPROM.h"
// RHT Humidity and Temperature Sensor
#include <SparkFun_RHT03.h>
// SD Card
#include "FS.h"
#include "SD.h"
#include "SPI.h"
// GPS Receiver
#include <TinyGPS++.h>
#include <HardwareSerial.h>

// SHARP Memory Display
// any pins can be used
#define SHARP_SCK  13
#define SHARP_MOSI 12
#define SHARP_SS   27
// Set the size of the display here, e.g. 144x168!
Adafruit_SharpMem display(SHARP_SCK, SHARP_MOSI, SHARP_SS, 144, 168);
// The currently-available SHARP Memory Display (144x168 pixels)
// requires > 4K of microcontroller RAM; it WILL NOT WORK on Arduino Uno
// or other <4K "classic" devices!
#define BLACK 0
#define WHITE 1
int minorHalfSize; // 1/2 of lesser of display width or height

// LED Green
int iLEDGreen =  21;                 // LED Green

// PCF8523 Precision RTC 
RTC_PCF8523 rtc;
String dateRTC = "";
String timeRTC = "";

// RHT Humidity and Temperature Sensor
const int RHT03_DATA_PIN = 17;          // RHT03 data pin Digital 17
RHT03 rht;                              // This creates a RTH03 object, which we'll use to interact with the sensor
float latestHumidity;
float latestTempC;
float latestTempF;

// SD Card
const int chipSelect = 33;              // SD Card
String zzzzzz = "";

// Rocker Switches
int iRow1 = 16;                         // Rocker Switches Digital 16
int iRow1State = 0;                     // Variable for reading the pushbutton status

// ESP32 HardwareSerial
HardwareSerial tGPS(2);

// GPS Receiver
#define gpsRXPIN 4
#define gpsTXPIN 36                     // This one is unused and doesnt have a conection
// The TinyGPS++ object
TinyGPSPlus gps;
float TargetLat;
float TargetLon;
int Status = 0;

// EMF Meter (Single Axis)
#define NUMREADINGS 15                    // Raise this number to increase data smoothing
int senseLimit = 15;                      // Raise this number to decrease sensitivity (up to 1023 max)
int val = 0;                              // Val
int iEMF = A0;                            // EMF Meter
int readings[ NUMREADINGS ];              // Readings from the analog input
int ind = 0;                              // Index of the current reading
int total = 0;                            // Running total
int average = 0;                          // Final average of the probe reading
int iEMFDis = 0;
int iEMFRect = 0;

// LiPo Battery
const int bat = A13;                      // LiPo Battery
uint16_t vbat = 0;
int iBat = 0;

// PIR Motion
const int iMotion = 32;                   // Motion detector
const int iLEDGreen1 = 14;                // LED Green 1
int proximity = LOW;                      // Proximity
String Det = "";

// The current address in the EEPROM (i.e. which byte
// we're going to  read to next)
#define EEPROM_SIZE 64
String sver = "11-2.p";
// Unit ID information
String uid = "";

void loop() {

  // Receives NEMA data from GPS receiver
  // This sketch displays information every time a new sentence is correctly encoded.
  while ( tGPS.available() > 0)
    if (gps.encode( tGPS.read() ))
    {
     displayInfo();
    }
  
  if (millis() > 5000 && gps.charsProcessed() < 10)
  {
    while(true);
  }

  // Date and Time 
  isRTC();
  
  // RHT03 Humidity and Temperature Sensor
  isRHT03();
  
  // SHARP Memory Display On
  isDisplayOn();
  
  // Rocker Switched
  // Read the state of the iRow1 value
  iRow1State = digitalRead(iRow1);

  // EMF Meter (Single Axis)
  isEMF();

  // LiPo Battery
  isBattery();

  // isPIR Motion
  isPIR();

  // Check if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (iRow1State == HIGH) {

    // iLEDGreen
    digitalWrite(iLEDGreen,  HIGH );
    // SD Card
    isSD();

  } else {

    // iLEDGreen
    digitalWrite(iLEDGreen,  LOW );
  
  }
   
  // Delay 
  delay( 1000 );

}

getBattery.ino

// LiPo Battery
void isBattery() {

  // Battery
  vbat = analogRead(bat);
  vbat = vbat / 2;

  iBat = map( vbat, 1, 1064, 1, 100);
  
}

getDisplay.ino

// SHARP Memory Display On
void isDisplayOn() {

    // Clear Display
    display.clearDisplay();
    // Text display date, time, LED on, Etc...
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // Date
    display.setCursor(0,1);
    display.println( dateRTC );
    // Time
    display.setCursor(0,17);
    display.println( timeRTC );
    // Longitude  
    display.setCursor(0,35);
    display.print("Lon: ");
    display.println( TargetLon );
    // Latitude
    display.setCursor(0,55);
    display.print("Lat: ");
    display.println( TargetLat );
    // Humidity
    display.setCursor(0,74);
    display.print("Hum: ");
    display.print( latestHumidity );
    display.println("%");
    // Temp C
    display.setCursor(0,94);
    display.print("Cel: ");
    display.print( latestTempC );
    display.println("*C");
    // EMF Meter
    display.setCursor(0,114);
    display.print("EMF: ");
    display.println( iEMFDis );
    // Battery
    display.setCursor(0,134);
    display.print("Bat: ");
    display.print( iBat );
    display.println( "%" );
    // PIR Motion
    display.println( Det );
    display.setCursor(0,154);
    // Refresh
    display.refresh(); 

}
// SHARP Memory Display - UID
void isDisplayUID() {

    // Clear Display
    display.clearDisplay();
    // text display EEPROM
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    // EEPROM with Unique ID
    display.setCursor(0,20);
    display.print( "UID: " );
    display.println( uid );
    // Version
    display.setCursor(0,45);
    display.print( "VER: ");
    display.println( sver  );
    // Refresh
    display.refresh();
    delay( 100 );
    
}

getEEPROM.ino

// EEPROM
void GetUID()
{
  
  // Get unit ID
  uid = "";
  for (int x = 0; x < 5; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getEMF.ino

// EMF Meter (Single Axis)
// setupEMF
void setupEMF() {

  // EMF Meter (Single Axis)
  pinMode( iEMF, OUTPUT ); // EMF Meter
  for (int i = 0; i < NUMREADINGS; i++){
    readings[ i ] = 0;     // Initialize all the readings to 0
  }
  
}
// isEMF
void isEMF(){

  // Probe
  val = analogRead( iEMF );                    // Take a reading from the probe
  
  if( val >= 1 ){                              // If the reading isn't zero, proceed

    val = constrain( val, 1, senseLimit );     // Turn any reading higher than the senseLimit value into the senseLimit value
    val = map( val, 1, senseLimit, 1, 1023 );  // Remap the constrained value within a 1 to 1023 range

    total -= readings[ ind ];                  // Subtract the last reading
    readings[ ind ] = val;                     // Read from the sensor
    total += readings[ ind ];                  // Add the reading to the total
    ind = ( ind + 1 );                         // Advance to the next index

    if ( ind >= NUMREADINGS ) {                // If we're at the end of the array...
      ind = 0;                                 // ...wrap around to the beginning
    }  

    average = total / NUMREADINGS;             // Calculate the average

    
   // average = val;
  }
  else
  {
      
    iEMFRect = 0;
    val = 0;
    average = 0;
    
  }

  iEMFDis = average;
  iEMFRect = map( average, 1, 1023, 1, 144 );
    
}

getGPS.ino

// GPS Receiver
void setupGPS() {

  // Setup GPS
  tGPS.begin(  9600 , SERIAL_8N1, gpsRXPIN, gpsTXPIN );
  
}
// GPS Vector Pointer Target
void displayInfo()
{

  // Location
  if (gps.location.isValid())
  {
    
    TargetLat = gps.location.lat();
    TargetLon = gps.location.lng();
    Status = 2;
    
  }
  else
  {

    Status = 0;
    
  }

}

getPIR.ino

// PIR Motion
void setupPIR() {

  // Setup PIR Montion
  pinMode(iMotion, INPUT_PULLUP);
  pinMode(iLEDGreen1, OUTPUT);
  
}
// isPIR Motion
void isPIR() {

  // Proximity
  proximity = digitalRead(iMotion);
  if (proximity == LOW) 
  {

    // PIR Motion Sensor's LOW, Motion is detected
    // LED Green 1 - HIGH
    digitalWrite(iLEDGreen1, HIGH);
    Det = "Motion!";
    
  }
  else
  {

    // PIR Motion Sensor's HIGH
    // LED Green 1 - LOW
    digitalWrite(iLEDGreen1, LOW);
    Det = "****";
    
  }
  
}

getRHT.ino

// RHT03 Humidity and Temperature Sensor
void isRHT03(){

  // Call rht.update() to get new humidity and temperature values from the sensor.
  int updateRet = rht.update();

  // The humidity(), tempC(), and tempF() functions can be called -- after 
  // a successful update() -- to get the last humidity and temperature value 
  latestHumidity = rht.humidity();
  latestTempC = rht.tempC();
  latestTempF = rht.tempF();
  
}

getRTCpcf8523.ino

// PCF8523 Precision RTC 
void setupRTC() {

  // pcf8523 Precision RTC   
  if (! rtc.begin()) {
    while (1);
  }  
  if (! rtc.initialized()) {
    // Following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2018, 9, 29, 12, 17, 0));
  }
  
}
// Date and Time RTC
void isRTC () {

  // Date and Time
  DateTime now = rtc.now();
  // Date
  dateRTC = now.year(), DEC; 
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.month(), DEC;
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.day(), DEC;
  // Time
  timeRTC = now.hour(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.minute(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.second(), DEC;
  
}

getSD.ino

// SD Card
void setupSD() {

  // SD Card
    pinMode( chipSelect , OUTPUT );
    if(!SD.begin( chipSelect )){
        ;  
        return;
    }
    uint8_t cardType = SD.cardType();

    if(cardType == CARD_NONE){
        ; 
        return;
    }

    //Serial.print("SD Card Type: ");
    if(cardType == CARD_MMC){
        ; 
    } else if(cardType == CARD_SD){
        ; 
    } else if(cardType == CARD_SDHC){
        ; 
    } else {
        ; 
    } 

    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
  
}
// SD Card
void isSD() {

  zzzzzz = "";

  zzzzzz = uid + "|" + sver + "|" + dateRTC + "|" + timeRTC + "|" + Status + "|" + TargetLon + "|" + TargetLat + "|" + latestHumidity + "|" + latestTempC + "|" + latestTempF + "|" + average + "|" + iBat + "|" + Det + "|\r";

  char msg[zzzzzz.length() + 1];

  zzzzzz.toCharArray(msg, zzzzzz.length() + 1);

  appendFile(SD, "/espdata.txt", msg );
  
}
// List Dir
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
    dirname;
    File root = fs.open(dirname);
    if(!root){
        return;
    }
    if(!root.isDirectory()){
        return;
    }

    File file = root.openNextFile();
    while(file){
        if(file.isDirectory()){
            file.name();
            if(levels){
                listDir(fs, file.name(), levels -1);
            }
        } else {
            file.name();
            file.size();
        }
        file = root.openNextFile();
    }
}
// Write File
void writeFile(fs::FS &fs, const char * path, const char * message){
    path;
    File file = fs.open(path, FILE_WRITE);
    if(!file){
        return;
    }
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    file.close();
}
// Append File
void appendFile(fs::FS &fs, const char * path, const char * message){
    //Serial.printf("Appending to file: %s\n", path);
    path;
    File file = fs.open(path, FILE_APPEND);
    if(!file){
        return;
    }
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    file.close();
}

setup.ino

// Setup
void setup() {

  // EEPROM with Unique ID
  EEPROM.begin(EEPROM_SIZE);
   
  // Get Unit ID
  GetUID();

  // GPS Receiver
  // Setup GPS
  setupGPS();
  
  // SHARP Display start & clear the display
  display.begin();
  display.clearDisplay();

  isDisplayUID();

  delay( 5000 );
  
  // Initialize the LED Green
  pinMode(iLEDGreen, OUTPUT);

  // PCF8523 Precision RTC 
  setupRTC();

  // Date and Time RTC
  isRTC();

  // RHT03 Humidity and Temperature Sensor
  // Call rht.begin() to initialize the sensor and our data pin
  rht.begin(RHT03_DATA_PIN);

  // SD Card
  setupSD();

  // Rocker Switches
  pinMode(iRow1, INPUT);

  // EMF Meter (Single Axis)
  setupEMF();

  // PIR Motion
  setupPIR();

}

Follow Us

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Web: http://neosteamlabs.com/
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Posted in #11 - ESP32, Adafruit, Digital Electronics, ESP32, Fritzing, Microcontrollers, Pololu, Program ESP32, Projects, SparkFun | Tagged , , , , , , , , , , , , , | Leave a comment

Project #11: ESP32 Feather – LiPo 2.5Ah – Mk10

Published November 11, 2019 | By DonLuc

——

Lithium Ion Battery

——

Lithium Ion Battery

——

Lithium Ion Battery

——

Lithium Ion Battery

——

Lithium Ion Battery – 2.5Ah

These are very slim, extremely light weight batteries based on Lithium Ion chemistry. Each cell outputs a nominal 3.7V at 2500mAh. Comes terminated with a standard 2-pin JST-PH connector – 2mm spacing between pins. These batteries require special charging. Do not attempt to charge these with anything but a specialized Lithium Polymer charger.

DL1911Mk01

1 x Adafruit HUZZAH32 ESP32 Feather
1 x Adafruit SHARP Memory Display
1 x Adafruit Adalogger FeatherWing – RTC + SD
1 x CR1220 12mm Lithium Battery
1 x 8Gb Micro SD Card
1 x RHT03 Humidity and Temperature Sensor
1 x GPS Receiver GP-20U
1 x LED Green
1 x Rocker Switches
1 x 100 Ohm
1 x 10K Ohm
1 x 3.3M Ohm
1 x Antenna
1 x Lithium Ion Battery – 2.5Ah
14 x Jumper Wires 3″ M/M
6 x Jumper Wires 6″ M/M
2 x Wire
1 x Full-Size Breadboard
1 x Breadboard
1 x SparkFun Cerberus USB Cable

Adafruit HUZZAH32 ESP32 Feather

LG1 – Digital 21
RO1 – Digital 16
RHT – Digital 17
SCK – Digital 13
MOS – Digital 12
SSD – Digital 27
SDA – Digital 23
SCL – Digital 22
SD1 – Digital 33
SC2 – Digital 5
MO2 – Digital 18
MI2 – Digital 19
GPS – Digital 4
EMF – Analog A0
BAT – Analog A13
GND – GND
VIN – +3.3V

DL1911Mk01.ino

// ***** Don Luc Electronics *****
// Software Version Information
// Project #11: HUZZAH32 ESP32 Feather - LiPo 2.5Ah - Mk10
// 11-01
// DL1911Mk01p.ino 11-10
// Adafruit HUZZAH32 ESP32 Feather Board
// SHARP Display
// LED Green
// Adalogger FeatherWing - RTC + SD
// EEPROM
// RHT03 Humidity and Temperature Sensor
// Rocker Switches
// GPS Receiver
// EMF Meter (Single Axis)
// Lithium Ion Battery - 2.5Ah

// include Library Code
// SHARP Memory Display
#include <Adafruit_SharpMem.h>
#include <Adafruit_GFX.h>
// Date and Time
#include "RTClib.h"
// EEPROM library to read EEPROM with unique ID for unit
#include "EEPROM.h"
// RHT Humidity and Temperature Sensor
#include <SparkFun_RHT03.h>
// SD Card
#include "FS.h"
#include "SD.h"
#include "SPI.h"
// GPS Receiver
#include <TinyGPS++.h>
#include <HardwareSerial.h>

// SHARP Memory Display
// any pins can be used
#define SHARP_SCK  13
#define SHARP_MOSI 12
#define SHARP_SS   27
// Set the size of the display here, e.g. 144x168!
Adafruit_SharpMem display(SHARP_SCK, SHARP_MOSI, SHARP_SS, 144, 168);
// The currently-available SHARP Memory Display (144x168 pixels)
// requires > 4K of microcontroller RAM; it WILL NOT WORK on Arduino Uno
// or other <4K "classic" devices!
#define BLACK 0
#define WHITE 1
int minorHalfSize; // 1/2 of lesser of display width or height

// LED Green
int iLEDGreen =  21;                 // LED Green

// PCF8523 Precision RTC 
RTC_PCF8523 rtc;
String dateRTC = "";
String timeRTC = "";

// RHT Humidity and Temperature Sensor
const int RHT03_DATA_PIN = 17;          // RHT03 data pin Digital 17
RHT03 rht;                              // This creates a RTH03 object, which we'll use to interact with the sensor
float latestHumidity;
float latestTempC;
float latestTempF;

// SD Card
const int chipSelect = 33;              // SD Card
String zzzzzz = "";

// Rocker Switches
int iRow1 = 16;                         // Rocker Switches Digital 16
int iRow1State = 0;                     // Variable for reading the pushbutton status

// ESP32 HardwareSerial
HardwareSerial tGPS(2);

// GPS Receiver
#define gpsRXPIN 4
#define gpsTXPIN 36                     // This one is unused and doesnt have a conection
// The TinyGPS++ object
TinyGPSPlus gps;
float TargetLat;
float TargetLon;
int Status = 0;

// EMF Meter (Single Axis)
#define NUMREADINGS 15                    // Raise this number to increase data smoothing
int senseLimit = 15;                      // Raise this number to decrease sensitivity (up to 1023 max)
int val = 0;                              // Val
int iEMF = A0;                            // EMF Meter
int readings[ NUMREADINGS ];              // Readings from the analog input
int ind = 0;                              // Index of the current reading
int total = 0;                            // Running total
int average = 0;                          // Final average of the probe reading
int iEMFDis = 0;
int iEMFRect = 0;

// LiPo Battery
const int bat = A13;                      // LiPo Battery
uint16_t vbat = 0;
int iBat = 0;

// The current address in the EEPROM (i.e. which byte
// we're going to  read to next)
#define EEPROM_SIZE 64
String sver = "11-1.p";
// Unit ID information
String uid = "";

void loop() {

  // Receives NEMA data from GPS receiver
  // This sketch displays information every time a new sentence is correctly encoded.
  while ( tGPS.available() > 0)
    if (gps.encode( tGPS.read() ))
    {
     displayInfo();
    }
  
  if (millis() > 5000 && gps.charsProcessed() < 10)
  {
    while(true);
  }

  // Date and Time 
  isRTC();
  
  // RHT03 Humidity and Temperature Sensor
  isRHT03();
  
  // SHARP Memory Display On
  isDisplayOn();
  
  // Rocker Switched
  // Read the state of the iRow1 value
  iRow1State = digitalRead(iRow1);

  // EMF Meter (Single Axis)
  isEMF();

  // LiPo Battery
  isBattery();

  // Check if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (iRow1State == HIGH) {

    // iLEDGreen
    digitalWrite(iLEDGreen,  HIGH );
    // SD Card
    isSD();

  } else {

    // iLEDGreen
    digitalWrite(iLEDGreen,  LOW );
  
  }
   
  // Delay 
  delay( 1000 );

}

getBattery.ino

// LiPo Battery
void isBattery() {

  // Battery
  vbat = analogRead(bat);
  vbat = vbat / 2;

  iBat = map( vbat, 1, 1064, 1, 100);
  
}

getDisplay.ino

// SHARP Memory Display On
void isDisplayOn() {

    // Clear Display
    display.clearDisplay();
    // text display date, time, LED on
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    display.setCursor(0,1);
    display.println( dateRTC );
    display.setCursor(0,17);
    display.println( timeRTC );       
    display.setCursor(0,35);
    display.print("Lon: ");
    display.println( TargetLon );
    display.setCursor(0,55);
    display.print("Lat: ");
    display.println( TargetLat );
    display.setCursor(0,74);
    display.print("Hum: ");
    display.print( latestHumidity );
    display.println("%");
    display.setCursor(0,94);
    display.print("Cel: ");
    display.print( latestTempC );
    display.println("*C");
    display.setCursor(0,114);
    display.print("EMF: ");
    display.println( iEMFDis );
    display.setCursor(0,134);
    display.print("Bat: ");
    display.print( iBat );
    display.println( "%" );
    display.refresh(); 

}
// SHARP Memory Display - UID
void isDisplayUID() {

    // text display EEPROM
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    display.setCursor(0,20);
    display.print( "UID: " );
    display.println( uid );
   // display.setTextSize();
    display.setTextColor(BLACK);
    display.setCursor(0,45);
    display.print( "VER: ");
    display.println( sver  );
    display.refresh();
    delay( 100 );
    
}

getEEPROM.ino

// EEPROM
void GetUID()
{
  
  // Get unit ID
  uid = "";
  for (int x = 0; x < 5; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getEMF.ino

// EMF Meter (Single Axis)
// setupEMF
void setupEMF() {

  // EMF Meter (Single Axis)
  pinMode( iEMF, OUTPUT ); // EMF Meter
  for (int i = 0; i < NUMREADINGS; i++){
    readings[ i ] = 0;     // Initialize all the readings to 0
  }
  
}
// isEMF
void isEMF(){

  // Probe
  val = analogRead( iEMF );                    // Take a reading from the probe
  
  if( val >= 1 ){                              // If the reading isn't zero, proceed

    val = constrain( val, 1, senseLimit );     // Turn any reading higher than the senseLimit value into the senseLimit value
    val = map( val, 1, senseLimit, 1, 1023 );  // Remap the constrained value within a 1 to 1023 range

    total -= readings[ ind ];                  // Subtract the last reading
    readings[ ind ] = val;                     // Read from the sensor
    total += readings[ ind ];                  // Add the reading to the total
    ind = ( ind + 1 );                         // Advance to the next index

    if ( ind >= NUMREADINGS ) {                // If we're at the end of the array...
      ind = 0;                                 // ...wrap around to the beginning
    }  

    average = total / NUMREADINGS;             // Calculate the average

    
   // average = val;
  }
  else
  {
      
    iEMFRect = 0;
    val = 0;
    average = 0;
    
  }

  iEMFDis = average;
  iEMFRect = map( average, 1, 1023, 1, 144 );
    
}

getGPS.ino

// GPS Receiver
void setupGPS() {

  // Setup GPS
  tGPS.begin(  9600 , SERIAL_8N1, gpsRXPIN, gpsTXPIN );
  
}
// GPS Vector Pointer Target
void displayInfo()
{

  // Location
  if (gps.location.isValid())
  {
    
    TargetLat = gps.location.lat();
    TargetLon = gps.location.lng();
    Status = 2;
    
  }
  else
  {

    Status = 0;
    
  }

}

getRHT.ino

// RHT03 Humidity and Temperature Sensor
void isRHT03(){

  // Call rht.update() to get new humidity and temperature values from the sensor.
  int updateRet = rht.update();

  // The humidity(), tempC(), and tempF() functions can be called -- after 
  // a successful update() -- to get the last humidity and temperature value 
  latestHumidity = rht.humidity();
  latestTempC = rht.tempC();
  latestTempF = rht.tempF();
  
}

getRTCpcf8523.ino

// PCF8523 Precision RTC 
void setupRTC() {

  // pcf8523 Precision RTC   
  if (! rtc.begin()) {
    while (1);
  }  
  if (! rtc.initialized()) {
    // Following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2018, 9, 29, 12, 17, 0));
  }
  
}
// Date and Time RTC
void isRTC () {

  // Date and Time
  DateTime now = rtc.now();
  // Date
  dateRTC = now.year(), DEC; 
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.month(), DEC;
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.day(), DEC;
  // Time
  timeRTC = now.hour(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.minute(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.second(), DEC;
  
}

getSD.ino

// SD Card
void setupSD() {

  // SD Card
    pinMode( chipSelect , OUTPUT );
    if(!SD.begin( chipSelect )){
        ;  
        return;
    }
    uint8_t cardType = SD.cardType();

    if(cardType == CARD_NONE){
        ; 
        return;
    }

    //Serial.print("SD Card Type: ");
    if(cardType == CARD_MMC){
        ; 
    } else if(cardType == CARD_SD){
        ; 
    } else if(cardType == CARD_SDHC){
        ; 
    } else {
        ; 
    } 

    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
  
}
// SD Card
void isSD() {

  zzzzzz = "";

  zzzzzz = uid + "|" + sver + "|" + dateRTC + "|" + timeRTC + "|" + Status + "|" + TargetLon + "|" + TargetLat + "|" + latestHumidity + "|" + latestTempC + "|" + latestTempF + "|" + average + "|\r";

  char msg[zzzzzz.length() + 1];

  zzzzzz.toCharArray(msg, zzzzzz.length() + 1);

  appendFile(SD, "/espdata.txt", msg );
  
}
// List Dir
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
    dirname;
    File root = fs.open(dirname);
    if(!root){
        return;
    }
    if(!root.isDirectory()){
        return;
    }

    File file = root.openNextFile();
    while(file){
        if(file.isDirectory()){
            file.name();
            if(levels){
                listDir(fs, file.name(), levels -1);
            }
        } else {
            file.name();
            file.size();
        }
        file = root.openNextFile();
    }
}
// Write File
void writeFile(fs::FS &fs, const char * path, const char * message){
    path;
    File file = fs.open(path, FILE_WRITE);
    if(!file){
        return;
    }
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    file.close();
}
// Append File
void appendFile(fs::FS &fs, const char * path, const char * message){
    //Serial.printf("Appending to file: %s\n", path);
    path;
    File file = fs.open(path, FILE_APPEND);
    if(!file){
        return;
    }
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    file.close();
}

setup.ino

// Setup
void setup() {

  // EEPROM with unique ID
  EEPROM.begin(EEPROM_SIZE);
   
  // Get Unit ID
  GetUID();

  // GPS Receiver
  // Setup GPS
  setupGPS();
  
  // SHARP Display start & clear the display
  display.begin();
  display.clearDisplay();

  isDisplayUID();

  delay( 5000 );
  
  // Initialize the LED Green
  pinMode(iLEDGreen, OUTPUT);

  // PCF8523 Precision RTC 
  setupRTC();

  // Date and Time RTC
  isRTC();

  // RHT03 Humidity and Temperature Sensor
  // Call rht.begin() to initialize the sensor and our data pin
  rht.begin(RHT03_DATA_PIN);

  // SD Card
  setupSD();

  // Rocker Switches
  pinMode(iRow1, INPUT);

  // EMF Meter (Single Axis)
  setupEMF();

}

Follow Us

Web: https://www.donluc.com/
Web: http://neosteamlabs.com/
Web: http://www.jlpconsultants.com/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
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Don Luc

Posted in #11 - ESP32, Adafruit, Digital Electronics, ESP32, Fritzing, Microcontrollers, Program ESP32, Projects, SparkFun | Tagged , , , , , , , , , , , , , | Leave a comment

Project #11: ESP32 Feather – EMF Meter – Mk09

Published October 28, 2019 | By DonLuc

——

EMF Meter

——

EMF Meter

——

EMF Meter

——

EMF Meter

EMF measurements are measurements of ambient electromagnetic fields that are performed using particular sensors or probes, such as EMF meters. These probes can be generally considered as antennas although with different characteristics. In fact probes should not perturb the electromagnetic field and must prevent coupling and reflection as much as possible in order to obtain precise results.

EMF probes may respond to fields only on one axis. Amplified, active, probes can improve measurement precision and sensitivity but their active components may limit their speed of response.

DL1910Mk01

1 x Adafruit HUZZAH32 ESP32 Feather
1 x Adafruit SHARP Memory Display
1 x Adafruit Adalogger FeatherWing – RTC + SD
1 x CR1220 12mm Lithium Battery
1 x 8Gb Micro SD Card
1 x RHT03 Humidity and Temperature Sensor
1 x GPS Receiver GP-20U
1 x LED Green
1 x Rocker Switches
1 x 100 Ohm
1 x 10K Ohm
1 x 3.3M Ohm
1 x Antenna
14 x Jumper Wires 3″ M/M
6 x Jumper Wires 6″ M/M
2 x Wire
1 x Full-Size Breadboard
1 x Breadboard
1 x SparkFun Cerberus USB Cable

Adafruit HUZZAH32 ESP32 Feather

LG1 – Digital 21
RO1 – Digital 16
RHT – Digital 17
SCK – Digital 13
MOS – Digital 12
SSD – Digital 27
SDA – Digital 23
SCL – Digital 22
SD1 – Digital 33
SC2 – Digital 5
MO2 – Digital 18
MI2 – Digital 19
GPS – Digital 4
EMF – Analog A0
GND – GND
VIN – +3.3V

DL1910Mk01.ino

// ***** Don Luc Electronics *****
// Software Version Information
// Project #11: HUZZAH32 ESP32 Feather - EMF - Mk09
// 10-01
// DL1910Mk01p.ino 11-09
// Adafruit HUZZAH32 ESP32 Feather Board
// SHARP Display
// LED Green
// Adalogger FeatherWing - RTC + SD
// EEPROM
// RHT03 Humidity and Temperature Sensor
// Rocker Switches
// GPS Receiver
// EMF Meter (Single Axis)

// include Library Code
// SHARP Memory Display
#include <Adafruit_SharpMem.h>
#include <Adafruit_GFX.h>
// Date and Time
#include "RTClib.h"
// EEPROM library to read EEPROM with unique ID for unit
#include "EEPROM.h"
// RHT Humidity and Temperature Sensor
#include <SparkFun_RHT03.h>
// SD Card
#include "FS.h"
#include "SD.h"
#include "SPI.h"
// GPS Receiver
#include <TinyGPS++.h>
#include <HardwareSerial.h>

// SHARP Memory Display
// any pins can be used
#define SHARP_SCK  13
#define SHARP_MOSI 12
#define SHARP_SS   27
// Set the size of the display here, e.g. 144x168!
Adafruit_SharpMem display(SHARP_SCK, SHARP_MOSI, SHARP_SS, 144, 168);
// The currently-available SHARP Memory Display (144x168 pixels)
// requires > 4K of microcontroller RAM; it WILL NOT WORK on Arduino Uno
// or other <4K "classic" devices!
#define BLACK 0
#define WHITE 1
int minorHalfSize; // 1/2 of lesser of display width or height

// LED Green
int iLEDGreen =  21;                 // LED Green

// PCF8523 Precision RTC 
RTC_PCF8523 rtc;
String dateRTC = "";
String timeRTC = "";

// RHT Humidity and Temperature Sensor
const int RHT03_DATA_PIN = 17;          // RHT03 data pin Digital 17
RHT03 rht;                              // This creates a RTH03 object, which we'll use to interact with the sensor
float latestHumidity;
float latestTempC;
float latestTempF;

// SD Card
const int chipSelect = 33;              // SD Card
String zzzzzz = "";

// Rocker Switches
int iRow1 = 16;                         // Rocker Switches Digital 16
int iRow1State = 0;                     // Variable for reading the pushbutton status

// ESP32 HardwareSerial
HardwareSerial tGPS(2);

// GPS Receiver
#define gpsRXPIN 4
#define gpsTXPIN 36                     // This one is unused and doesnt have a conection
// The TinyGPS++ object
TinyGPSPlus gps;
float TargetLat;
float TargetLon;
int Status = 0;

// EMF Meter (Single Axis)
#define NUMREADINGS 15                    // Raise this number to increase data smoothing
int senseLimit = 15;                      // Raise this number to decrease sensitivity (up to 1023 max)
int val = 0;                              // Val
int iEMF = A0;                            // EMF Meter
int readings[ NUMREADINGS ];              // Readings from the analog input
int ind = 0;                              // Index of the current reading
int total = 0;                            // Running total
int average = 0;                          // Final average of the probe reading
int iEMFDis = 0;
int iEMFRect = 0;

// The current address in the EEPROM (i.e. which byte
// we're going to  read to next)
#define EEPROM_SIZE 64
String sver = "10-1.p";
// Unit ID information
String uid = "";

void loop() {

  // Receives NEMA data from GPS receiver
  // This sketch displays information every time a new sentence is correctly encoded.
  while ( tGPS.available() > 0)
    if (gps.encode( tGPS.read() ))
    {
     displayInfo();
    }
  
  if (millis() > 5000 && gps.charsProcessed() < 10)
  {
    while(true);
  }

  // Date and Time 
  isRTC();
  
  // RHT03 Humidity and Temperature Sensor
  isRHT03();
  
  // SHARP Memory Display On
  isDisplayOn();
  
  // Rocker Switched
  // Read the state of the iRow1 value
  iRow1State = digitalRead(iRow1);

  // EMF Meter (Single Axis)
  isEMF();

  // Check if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (iRow1State == HIGH) {

    // iLEDGreen
    digitalWrite(iLEDGreen,  HIGH );
    // SD Card
    isSD();

  } else {

    // iLEDGreen
    digitalWrite(iLEDGreen,  LOW );
  
  }
   
  // Delay 
  delay( 1000 );

}

getDisplay.ino

// SHARP Memory Display On
void isDisplayOn() {

    // Clear Display
    display.clearDisplay();
    // text display date, time, LED on
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    display.setCursor(0,1);
    display.println( dateRTC );
    display.setCursor(0,17);
    display.println( timeRTC );   
    //display.setTextSize(2);    
    display.setCursor(0,35);
    display.print("Lon: ");
    display.println( TargetLon );
    display.setCursor(0,55);
    display.print("Lat: ");
    display.println( TargetLat );
    display.setCursor(0,74);
    display.print("Hum: ");
    display.print( latestHumidity );
    display.println("%");
    display.setCursor(0,94);
    display.print("Cel: ");
    display.print( latestTempC );
    display.println("*C");
    display.setCursor(0,114);
    display.print("EMF: ");
    display.println( iEMFDis );
    display.setCursor(0,134);
    display.setTextSize(1);
    display.println( "0  1 2 3 4 5 6 7 8 9  10" );
    display.setCursor(0,144);
    display.drawRect(0, 144, iEMFRect , display.height(), BLACK);
    display.fillRect(0, 144, iEMFRect , display.height(), BLACK);
    display.refresh();

}
// SHARP Memory Display - UID
void isDisplayUID() {

    // text display EEPROM
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    display.setCursor(0,20);
    display.print( "UID: " );
    display.println( uid );
   // display.setTextSize();
    display.setTextColor(BLACK);
    display.setCursor(0,45);
    display.print( "VER: ");
    display.println( sver  );
    display.refresh();
    delay( 100 );
    
}

getEEPROM.ino

// EEPROM
void GetUID()
{
  
  // Get unit ID
  uid = "";
  for (int x = 0; x < 5; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getEMF.ino

// EMF Meter (Single Axis)
// setupEMF
void setupEMF() {

  // EMF Meter (Single Axis)
  pinMode( iEMF, OUTPUT ); // EMF Meter
  for (int i = 0; i < NUMREADINGS; i++){
    readings[ i ] = 0;     // Initialize all the readings to 0
  }
  
}
// isEMF
void isEMF(){

  // Probe
  val = analogRead( iEMF );                    // Take a reading from the probe
  
  if( val >= 1 ){                              // If the reading isn't zero, proceed

    val = constrain( val, 1, senseLimit );     // Turn any reading higher than the senseLimit value into the senseLimit value
    val = map( val, 1, senseLimit, 1, 1023 );  // Remap the constrained value within a 1 to 1023 range

    total -= readings[ ind ];                  // Subtract the last reading
    readings[ ind ] = val;                     // Read from the sensor
    total += readings[ ind ];                  // Add the reading to the total
    ind = ( ind + 1 );                         // Advance to the next index

    if ( ind >= NUMREADINGS ) {                // If we're at the end of the array...
      ind = 0;                                 // ...wrap around to the beginning
    }  

    average = total / NUMREADINGS;             // Calculate the average

  }
  else
  {
      
    iEMFRect = 0;
    val = 0;
    average = 0;
    
  }

  iEMFDis = average;
  iEMFRect = map( average, 1, 1023, 1, 144 );
    
}

getGPS.ino

// GPS Receiver
void setupGPS() {

  // Setup GPS
  tGPS.begin(  9600 , SERIAL_8N1, gpsRXPIN, gpsTXPIN );
  
}
// GPS Vector Pointer Target
void displayInfo()
{

  // Location
  if (gps.location.isValid())
  {
    
    TargetLat = gps.location.lat();
    TargetLon = gps.location.lng();
    Status = 2;
    
  }
  else
  {

    Status = 0;
    
  }

}

getRHT.ino

// RHT03 Humidity and Temperature Sensor
void isRHT03(){

  // Call rht.update() to get new humidity and temperature values from the sensor.
  int updateRet = rht.update();

  // The humidity(), tempC(), and tempF() functions can be called -- after 
  // a successful update() -- to get the last humidity and temperature value 
  latestHumidity = rht.humidity();
  latestTempC = rht.tempC();
  latestTempF = rht.tempF();
  
}

getRTCpcf8523.ino

// PCF8523 Precision RTC 
void setupRTC() {

  // pcf8523 Precision RTC   
  if (! rtc.begin()) {
    while (1);
  }  
  if (! rtc.initialized()) {
    // Following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2018, 9, 29, 12, 17, 0));
  }
  
}
// Date and Time RTC
void isRTC () {

  // Date and Time
  DateTime now = rtc.now();
  // Date
  dateRTC = now.year(), DEC; 
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.month(), DEC;
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.day(), DEC;
  // Time
  timeRTC = now.hour(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.minute(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.second(), DEC;
  
}

getSD.ino

// SD Card
void setupSD() {

  // SD Card
    pinMode( chipSelect , OUTPUT );
    if(!SD.begin( chipSelect )){
        ;  
        return;
    }
    uint8_t cardType = SD.cardType();

    if(cardType == CARD_NONE){
        ; 
        return;
    }

    //Serial.print("SD Card Type: ");
    if(cardType == CARD_MMC){
        ; 
    } else if(cardType == CARD_SD){
        ; 
    } else if(cardType == CARD_SDHC){
        ; 
    } else {
        ; 
    } 

    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
  
}
// SD Card
void isSD() {

  zzzzzz = "";

  zzzzzz = uid + "|" + sver + "|" + dateRTC + "|" + timeRTC + "|" + Status + "|" + TargetLon + "|" + TargetLat + "|" + latestHumidity + "|" + latestTempC + "|" + latestTempF + "|" + average + "|\r";

  char msg[zzzzzz.length() + 1];

  zzzzzz.toCharArray(msg, zzzzzz.length() + 1);

  appendFile(SD, "/espdata.txt", msg );
  
}
// List Dir
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
    dirname;
    File root = fs.open(dirname);
    if(!root){
        return;
    }
    if(!root.isDirectory()){
        return;
    }

    File file = root.openNextFile();
    while(file){
        if(file.isDirectory()){
            file.name();
            if(levels){
                listDir(fs, file.name(), levels -1);
            }
        } else {
            file.name();
            file.size();
        }
        file = root.openNextFile();
    }
}
// Write File
void writeFile(fs::FS &fs, const char * path, const char * message){
    path;
    File file = fs.open(path, FILE_WRITE);
    if(!file){
        return;
    }
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    file.close();
}
// Append File
void appendFile(fs::FS &fs, const char * path, const char * message){
    //Serial.printf("Appending to file: %s\n", path);
    path;
    File file = fs.open(path, FILE_APPEND);
    if(!file){
        return;
    }
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    file.close();
}

setup.ino

// Setup
void setup() {

  // EEPROM with unique ID
  EEPROM.begin(EEPROM_SIZE);
   
  // Get Unit ID
  GetUID();

  // GPS Receiver
  // Setup GPS
  setupGPS();
  
  // SHARP Display start & clear the display
  display.begin();
  display.clearDisplay();

  isDisplayUID();

  delay( 5000 );
  
  // Initialize the LED Green
  pinMode(iLEDGreen, OUTPUT);

  // PCF8523 Precision RTC 
  setupRTC();

  // Date and Time RTC
  isRTC();

  // RHT03 Humidity and Temperature Sensor
  // Call rht.begin() to initialize the sensor and our data pin
  rht.begin(RHT03_DATA_PIN);

  // SD Card
  setupSD();

  // Rocker Switches
  pinMode(iRow1, INPUT);

  // EMF Meter (Single Axis)
  setupEMF();

}

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Don Luc

Posted in #11 - ESP32, Adafruit, Digital Electronics, ESP8266, Fritzing, Microcontrollers, Program ESP32, Projects | Tagged , , , , , , , , , , , | Leave a comment

Project #11: ESP32 Feather – ADXL335 – Mk08

Published September 14, 2019 | By DonLuc

ESP32 Feather – ADXL335

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ADXL335 Triple Axis Accelerometer

——

ADXL335 Triple Axis Accelerometer

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ADXL335 Triple Axis Accelerometer

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ADXL335 Triple Axis Accelerometer

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ADXL335 Triple Axis Accelerometer

Breakout board for the 3 axis ADXL335 from Analog Devices. This is the latest in a long, proven line of analog sensors – the holy grail of accelerometers. The ADXL335 is a triple axis MEMS accelerometer with extremely low noise and power consumption – only 320uA! The sensor has a full sensing range of +/-3g.

DonLuc1909Mk05

1 x Adafruit HUZZAH32 ESP32 Feather
1 x Adafruit SHARP Memory Display
1 x Adafruit Adalogger FeatherWing – RTC + SD
1 x CR1220 12mm Lithium Battery
1 x 8Gb Micro SD Card
1 x RHT03 Humidity and Temperature Sensor
1 x GPS Receiver GP-20U
1 x ADXL335 Triple Axis Accelerometer
1 x LED Green
1 x Rocker Switches
1 x 100 Ohm
1 x 10K Ohm
14 x Jumper Wires 3″ M/M
6 x Jumper Wires 6″ M/M
5 x Wire
1 x Full-Size Breadboard
1 x Breadboard
1 x SparkFun Cerberus USB Cable

Adafruit HUZZAH32 ESP32 Feather

LG1 – Digital 21
RO1 – Digital 16
RHT – Digital 17
SCK – Digital 13
MOS – Digital 12
SSD – Digital 27
SDA – Digital 23
SCL – Digital 22
SD1 – Digital 33
SC2 – Digital 5
MO2 – Digital 18
MI2 – Digital 19
GPS – Digital 4
ACX – Analog A8
ACY – Analog A7
ACZ – Analog A6
GND – GND
VIN – +3.3V

DL1909Mk05.ino

// ***** Don Luc Electronics *****
// Software Version Information
// Project #11: HUZZAH32 ESP32 Feather - ADXL335 - Mk08
// 09-05
// DL1909Mk05p.ino 11-08
// Adafruit HUZZAH32 ESP32 Feather Board
// SHARP Display
// LED Green
// Adalogger FeatherWing - RTC + SD
// EEPROM
// RHT03 Humidity and Temperature Sensor
// Rocker Switches
// GPS Receiver
// ADXL335 Triple Axis Accelerometer

// include Library Code
// SHARP Memory Display
#include <Adafruit_SharpMem.h>
#include <Adafruit_GFX.h>
// Date and Time
#include "RTClib.h"
// EEPROM library to read EEPROM with unique ID for unit
#include "EEPROM.h"
// RHT Humidity and Temperature Sensor
#include <SparkFun_RHT03.h>
// SD Card
#include "FS.h"
#include "SD.h"
#include "SPI.h"
// GPS Receiver
#include <TinyGPS++.h>
#include <HardwareSerial.h>
// ADXL335 Triple Axis Accelerometer
#include <ADXL335.h>

// SHARP Memory Display
// any pins can be used
#define SHARP_SCK  13
#define SHARP_MOSI 12
#define SHARP_SS   27
// Set the size of the display here, e.g. 144x168!
Adafruit_SharpMem display(SHARP_SCK, SHARP_MOSI, SHARP_SS, 144, 168);
// The currently-available SHARP Memory Display (144x168 pixels)
// requires > 4K of microcontroller RAM; it WILL NOT WORK on Arduino Uno
// or other <4K "classic" devices!
#define BLACK 0
#define WHITE 1
int minorHalfSize; // 1/2 of lesser of display width or height

// LED Green
int iLEDGreen =  21;                 // LED Green

// PCF8523 Precision RTC 
RTC_PCF8523 rtc;
String dateRTC = "";
String timeRTC = "";

// RHT Humidity and Temperature Sensor
const int RHT03_DATA_PIN = 17;          // RHT03 data pin Digital 17
RHT03 rht;                              // This creates a RTH03 object, which we'll use to interact with the sensor
float latestHumidity;
float latestTempC;
float latestTempF;

// SD Card
const int chipSelect = 33;              // SD Card
String zzzzzz = "";

// Rocker Switches
int iRow1 = 16;                         // Rocker Switches Digital 16
int iRow1State = 0;                     // Variable for reading the pushbutton status

// ESP32 HardwareSerial
HardwareSerial tGPS(2);

// GPS Receiver
#define gpsRXPIN 4
#define gpsTXPIN 36                     // This one is unused and doesnt have a conection
// The TinyGPS++ object
TinyGPSPlus gps;
float TargetLat;
float TargetLon;
int Status = 0;

// ADXL335 Triple Axis Accelerometer
const int pin_x = A8;
const int pin_y = A7;
const int pin_z = A6;
const float aref = 3.3;
ADXL335 accel(pin_x, pin_y, pin_z, aref);
String latestX = "";
String latestY = "";
String latestZ = "";

// The current address in the EEPROM (i.e. which byte
// we're going to  read to next)
#define EEPROM_SIZE 64
String sver = "9-5.p";
// Unit ID information
String uid = "";

void loop() {

  // Receives NEMA data from GPS receiver
  // This sketch displays information every time a new sentence is correctly encoded.
  while ( tGPS.available() > 0)
    if (gps.encode( tGPS.read() ))
    {
     displayInfo();
    }
  
  if (millis() > 5000 && gps.charsProcessed() < 10)
  {
    while(true);
  }

  // Date and Time 
  isRTC();
  
  // RHT03 Humidity and Temperature Sensor
  isRHT03();
  
  // SHARP Memory Display On
  isDisplayOn();
  
  // Rocker Switched
  // Read the state of the iRow1 value
  iRow1State = digitalRead(iRow1);

  // ADXL335 Triple Axis Accelerometer
  getADXL335();

  // Check if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (iRow1State == HIGH) {

    // iLEDGreen
    digitalWrite(iLEDGreen,  HIGH );
    // SD Card
    isSD();

  } else {

    // iLEDGreen
    digitalWrite(iLEDGreen,  LOW );
  
  }
   
  // Delay 
  delay( 1000 );

}

getADXL335.ino

// ADXL335 Triple Axis Accelerometer
void getADXL335() 
{

  // This is required to update the values
  accel.update();

  // This tells us how long the string is
  int string_width;

  float x;
  float y;
  float z;
  
  x = accel.getX();
  y = accel.getY();
  // If the project is laying flat and top up the z axis reads ~1G
  z = accel.getZ();

  latestX = formatFloat(x, 2, &string_width);
  latestY = formatFloat(y, 2, &string_width); 
  latestZ = formatFloat(z, 2, &string_width);
  
}
// Format float library
String formatFloat(double value, int places, int* string_width)
{
  
  // If value is positive infinity
  if (isinf(value) > 0)
  {
    return "+Inf";
  }
    
  // Arduino does not seem to have negative infinity
  // keeping this code block for reference
  // if value is negative infinity
  if(isinf(value) < 0)
  {
    return "-Inf";
  }
  
  // If value is not a number
  if(isnan(value) > 0)
  {
    return "NaN";
  }
  
  // Always include a space for the dot
  int num_width = 1;

  // If the number of decimal places is less than 1
  if (places < 1)
  {
    
    // Set places to 1
    places = 1;
    
    // And truncate the value
    value = (float)((int)value);
    
  }
  
  // Add the places to the right of the decimal
  num_width += places;
  
  // If the value does not contain an integral part  
  if (value < 1.0 && value > -1.0)
  {
    
    // Add one for the integral zero
    num_width++;
    
  }
  else
  {

    // Get the integral part and get the number of places to the left of decimal
    num_width += ((int)log10(abs(value))) + 1;
    
  }
  
  // If the value in less than 0
  if (value < 0.0)
  {
    
    // Add a space for the minus sign
    num_width++;
    
  }
  
  // Make a string the size of the number plus 1 for string terminator
  char s[num_width + 1]; 
  
  // Put the string terminator at the end
  s[num_width] = '\0';
  
  // Initalize the array to all zeros
  for (int i = 0; i < num_width; i++)
  {
    
    s[i] = '0';
    
  }
  
  // Characters that are not changed by the function below will be zeros
  // set the out variable string width lets the caller know what we came up with
  *string_width = num_width;
  
  // Use the avr-libc function dtosrtf to format the value
  return String(dtostrf(value,num_width,places,s));  
  
}

getDisplay.ino

// SHARP Memory Display On
void isDisplayOn() {

    // Clear Display
    display.clearDisplay();
    // text display date, time, LED on
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    display.setCursor(0,1);
    display.println( dateRTC );
    display.setCursor(0,17);
    display.println( timeRTC );   
    //display.setTextSize(2);    
    display.setCursor(0,35);
    display.print("Lon: ");
    display.println( TargetLon );
    display.setCursor(0,55);
    display.print("Lat: ");
    display.println( TargetLat );
    display.setCursor(0,74);
    display.print("Hum: ");
    display.print( latestHumidity );
    display.println("%");
    display.setCursor(0,94);
    display.print("Cel: ");
    display.print( latestTempC );
    display.println("*C");
    display.setCursor(0,114);
    display.print("X: ");
    display.println( latestX );
    display.setCursor(0,134);
    display.print("Y: ");
    display.println( latestY );
    display.setCursor(0,154);
    display.print("Z: ");
    display.println( latestZ );
    display.refresh();

}
// SHARP Memory Display - UID
void isDisplayUID() {

    // text display EEPROM
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    display.setCursor(0,20);
    display.print( "UID: " );
    display.println( uid );
   // display.setTextSize();
    display.setTextColor(BLACK);
    display.setCursor(0,45);
    display.print( "VER: ");
    display.println( sver  );
    display.refresh();
    delay( 100 );
    
}

getEEPROM.ino

// EEPROM
void GetUID()
{
  
  // Get unit ID
  uid = "";
  for (int x = 0; x < 5; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getGPS.ino

// GPS Receiver
void setupGPS() {

  // Setup GPS
  tGPS.begin(  9600 , SERIAL_8N1, gpsRXPIN, gpsTXPIN );
  
}
// GPS Vector Pointer Target
void displayInfo()
{

  // Location
  if (gps.location.isValid())
  {
    
    TargetLat = gps.location.lat();
    TargetLon = gps.location.lng();
    Status = 2;
    
  }
  else
  {

    Status = 0;
    
  }

}

getRHT.ino

// RHT03 Humidity and Temperature Sensor
void isRHT03(){

  // Call rht.update() to get new humidity and temperature values from the sensor.
  int updateRet = rht.update();

  // The humidity(), tempC(), and tempF() functions can be called -- after 
  // a successful update() -- to get the last humidity and temperature value 
  latestHumidity = rht.humidity();
  latestTempC = rht.tempC();
  latestTempF = rht.tempF();
  
}

getRTCpcf8523.ino

// PCF8523 Precision RTC 
void setupRTC() {

  // pcf8523 Precision RTC   
  if (! rtc.begin()) {
    while (1);
  }  
  if (! rtc.initialized()) {
    // Following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2018, 9, 29, 12, 17, 0));
  }
  
}
// Date and Time RTC
void isRTC () {

  // Date and Time
  DateTime now = rtc.now();
  // Date
  dateRTC = now.year(), DEC; 
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.month(), DEC;
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.day(), DEC;
  // Time
  timeRTC = now.hour(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.minute(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.second(), DEC;
  
}

getSD.ino

// SD Card
void setupSD() {

  // SD Card
    pinMode( chipSelect , OUTPUT );
    if(!SD.begin( chipSelect )){
        ;  
        return;
    }
    uint8_t cardType = SD.cardType();

    if(cardType == CARD_NONE){
        ; 
        return;
    }

    //Serial.print("SD Card Type: ");
    if(cardType == CARD_MMC){
        ; 
    } else if(cardType == CARD_SD){
        ; 
    } else if(cardType == CARD_SDHC){
        ; 
    } else {
        ; 
    } 

    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
  
}
// SD Card
void isSD() {

  zzzzzz = "";

  zzzzzz = uid + "|" + sver + "|" + dateRTC + "|" + timeRTC + "|" + Status + "|" + TargetLon + "|" + TargetLat + "|" + latestHumidity + "|" + latestTempC + "|" + latestTempF + "|" + latestX + "|" + latestY + "|" + latestZ + "|\r";

  char msg[zzzzzz.length() + 1];

  zzzzzz.toCharArray(msg, zzzzzz.length() + 1);

  appendFile(SD, "/espdata.txt", msg );
  
}
// List Dir
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
    dirname;
    File root = fs.open(dirname);
    if(!root){
        return;
    }
    if(!root.isDirectory()){
        return;
    }

    File file = root.openNextFile();
    while(file){
        if(file.isDirectory()){
            file.name();
            if(levels){
                listDir(fs, file.name(), levels -1);
            }
        } else {
            file.name();
            file.size();
        }
        file = root.openNextFile();
    }
}
// Write File
void writeFile(fs::FS &fs, const char * path, const char * message){
    path;
    File file = fs.open(path, FILE_WRITE);
    if(!file){
        return;
    }
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    file.close();
}
// Append File
void appendFile(fs::FS &fs, const char * path, const char * message){
    //Serial.printf("Appending to file: %s\n", path);
    path;
    File file = fs.open(path, FILE_APPEND);
    if(!file){
        return;
    }
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    file.close();
}

setup.ino

// Setup
void setup() {

  // EEPROM with unique ID
  EEPROM.begin(EEPROM_SIZE);
   
  // Get Unit ID
  GetUID();

  // GPS Receiver
  // Setup GPS
  setupGPS();
  
  // SHARP Display start & clear the display
  display.begin();
  display.clearDisplay();

  isDisplayUID();

  delay( 5000 );
  
  // Initialize the LED Green
  pinMode(iLEDGreen, OUTPUT);

  // PCF8523 Precision RTC 
  setupRTC();

  // Date and Time RTC
  isRTC();

  // RHT03 Humidity and Temperature Sensor
  // Call rht.begin() to initialize the sensor and our data pin
  rht.begin(RHT03_DATA_PIN);

  // SD Card
  setupSD();

  // Rocker Switches
  pinMode(iRow1, INPUT);

}

Follow Us

Web: https://www.donluc.com/
Web: http://neosteamlabs.com/
Web: http://www.jlpconsultants.com/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
Facebook: https://www.facebook.com/neosteam.labs.9/
Instagram: https://www.instagram.com/neosteamlabs/
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Twitter: https://twitter.com/labs_steam
Etsy: https://www.etsy.com/shop/NeoSteamLabs

Don Luc

Posted in #11 - ESP32, Adafruit, Digital Electronics, ESP32, Fritzing, Microcontrollers, Program ESP32, Projects, SparkFun | Tagged , , , , , , , , , , , , | Leave a comment

Project #11: ESP32 Feather – GPS Receiver – Mk07

Published September 9, 2019 | By DonLuc

ESP32 Feather – GPS Receiver

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Project #11: ESP32 Feather - GPS Receiver - Mk07

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Project #11: ESP32 Feather - GPS Receiver - Mk07

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Project #11: ESP32 Feather - GPS Receiver - Mk07

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Project #11: ESP32 Feather - GPS Receiver - Mk07

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Global Positioning System

The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Air Force. It is a global navigation satellite system that provides geolocation and time information to a GPS receiver anywhere on or near the Earth where there is an unobstructed line of sight to four or more GPS satellites. Obstacles such as mountains and buildings block the relatively weak GPS signals.

The GPS does not require the user to transmit any data, and it operates independently of any telephonic or internet reception, though these technologies can enhance the usefulness of the GPS positioning information. The GPS provides critical positioning capabilities to military, civil, and commercial users around the world. The United States government created the system, maintains it, and makes it freely accessible to anyone with a GPS receiver.

DonLuc1909Mk04

1 x Adafruit HUZZAH32 ESP32 Feather
1 x Adafruit SHARP Memory Display
1 x Adafruit Adalogger FeatherWing – RTC + SD
1 x CR1220 12mm Lithium Battery
1 x 8Gb Micro SD Card
1 x RHT03 Humidity and Temperature Sensor
1 x GPS Receiver GP-20U7
1 x LED Green
1 x Rocker Switches
1 x 100 Ohm
1 x 10K Ohm
14 x Jumper Wires 3″ M/M
6 x Jumper Wires 6″ M/M
1 x Full-Size Breadboard
1 x SparkFun Cerberus USB Cable

Adafruit HUZZAH32 ESP32 Feather

LG1 – Digital 21
RO1 – Digital 16
RHT – Digital 17
SCK – Digital 13
MOS – Digital 12
SSD – Digital 27
SDA – Digital 23
SCL – Digital 22
SD1 – Digital 33
SC2 – Digital 5
MO2 – Digital 18
MI2 – Digital 19
GPS – Digital 4
GND – GND
VIN – +3.3V

DL1909Mk04.ino

// ***** Don Luc Electronics *****
// Software Version Information
// Project #11: HUZZAH32 ESP32 Feather - GPS Receiver - Mk07
// 09-04
// DL1909Mk04p.ino 11-07
// Adafruit HUZZAH32 ESP32 Feather Board
// SHARP Display
// LED Green
// Adalogger FeatherWing - RTC + SD
// EEPROM
// RHT03 Humidity and Temperature Sensor
// Rocker Switches
// GPS Receiver

// include Library Code
// SHARP Memory Display
#include <Adafruit_SharpMem.h>
#include <Adafruit_GFX.h>
// Date and Time
#include "RTClib.h"
// EEPROM library to read EEPROM with unique ID for unit
#include "EEPROM.h"
// RHT Humidity and Temperature Sensor
#include <SparkFun_RHT03.h>
// SD Card
#include "FS.h"
#include "SD.h"
#include "SPI.h"
// GPS Receiver
#include <TinyGPS++.h>
#include <HardwareSerial.h>

// SHARP Memory Display
// any pins can be used
#define SHARP_SCK  13
#define SHARP_MOSI 12
#define SHARP_SS   27
// Set the size of the display here, e.g. 144x168!
Adafruit_SharpMem display(SHARP_SCK, SHARP_MOSI, SHARP_SS, 144, 168);
// The currently-available SHARP Memory Display (144x168 pixels)
// requires > 4K of microcontroller RAM; it WILL NOT WORK on Arduino Uno
// or other <4K "classic" devices!
#define BLACK 0
#define WHITE 1
int minorHalfSize; // 1/2 of lesser of display width or height

// LED Green
int iLEDGreen =  21;                 // LED Green

// PCF8523 Precision RTC 
RTC_PCF8523 rtc;
String dateRTC = "";
String timeRTC = "";

// The current address in the EEPROM (i.e. which byte
// we're going to  read to next)
#define EEPROM_SIZE 64
String sver = "9-4.p";
// Unit ID information
String uid = "";

// RHT Humidity and Temperature Sensor
const int RHT03_DATA_PIN = 17;          // RHT03 data pin Digital 17
RHT03 rht;                              // This creates a RTH03 object, which we'll use to interact with the sensor
float latestHumidity;
float latestTempC;
float latestTempF;

// SD Card
const int chipSelect = 33;              // SD Card
String zzzzzz = "";

// Rocker Switches
int iRow1 = 16;                         // Rocker Switches Digital 16
int iRow1State = 0;                     // Variable for reading the pushbutton status

// ESP32 HardwareSerial
HardwareSerial tGPS(2);

// GPS Receiver
#define gpsRXPIN 4
#define gpsTXPIN 36                     // This one is unused and doesnt have a conection
// The TinyGPS++ object
TinyGPSPlus gps;
float TargetLat;
float TargetLon;
int Status = 0;

void loop() {

  // Receives NEMA data from GPS receiver
  // This sketch displays information every time a new sentence is correctly encoded.
  while ( tGPS.available() > 0)
    if (gps.encode( tGPS.read() ))
    {
     displayInfo();
    }
  
  if (millis() > 5000 && gps.charsProcessed() < 10)
  {
    while(true);
  }

  // Date and Time 
  isRTC();
  
  // RHT03 Humidity and Temperature Sensor
  isRHT03();
  
  // SHARP Memory Display On
  isDisplayOn();
  
  // Rocker Switched
  // Read the state of the iRow1 value
  iRow1State = digitalRead(iRow1);

  // Check if the pushbutton is pressed. If it is, the buttonState is HIGH:
  if (iRow1State == HIGH) {

    // iLEDGreen
    digitalWrite(iLEDGreen,  HIGH );
    // SD Card
    isSD();

  } else {

    // iLEDGreen
    digitalWrite(iLEDGreen,  LOW );
  
  }
   
  // Delay 
  delay( 1000 );

}

getDisplay.ino

// SHARP Memory Display On
void isDisplayOn() {

    // Clear Display
    display.clearDisplay();
    // text display date, time, LED on
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    display.setCursor(0,5);
    display.print("GPS: ");
    display.println( Status );
    display.setCursor(0,25);
    display.print("LON: ");
    display.println( TargetLon );
    display.setCursor(0,45);
    display.print("LAT: ");
    display.println( TargetLat );
    display.setCursor(0,65);
    display.println( dateRTC );
    display.setCursor(0,85);
    display.println( timeRTC );
    display.setCursor(0,105);
    display.print("Hum: ");
    display.print( latestHumidity );
    display.println("%");
    display.setCursor(0,125);
    display.print("Cel: ");
    display.print( latestTempC );
    display.println("*C");
    display.setCursor(0,145);
    display.print("Fah: ");
    display.print( latestTempF );
    display.println("*F");
    display.refresh();

}
// SHARP Memory Display - UID
void isDisplayUID() {

    // text display EEPROM
    display.setRotation(4);
    display.setTextSize(2);
    display.setTextColor(BLACK);
    display.setCursor(0,20);
    display.print( "UID: " );
    display.println( uid );
   // display.setTextSize();
    display.setTextColor(BLACK);
    display.setCursor(0,45);
    display.print( "VER: ");
    display.println( sver  );
    display.refresh();
    delay( 100 );
    
}

getEEPROM.ino

// EEPROM
void GetUID()
{
  
  // Get unit ID
  uid = "";
  for (int x = 0; x < 5; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getGPS.ino

// GPS Receiver
void setupGPS() {

  // Setup GPS
  tGPS.begin(  9600 , SERIAL_8N1, gpsRXPIN, gpsTXPIN );
  
}
// GPS Vector Pointer Target
void displayInfo()
{

  // Location
  if (gps.location.isValid())
  {
    
    TargetLat = gps.location.lat();
    TargetLon = gps.location.lng();
    Status = 2;
    
  }
  else
  {

    Status = 0;
    
  }

}

getRHT.ino

// RHT03 Humidity and Temperature Sensor
void isRHT03(){

  // Call rht.update() to get new humidity and temperature values from the sensor.
  int updateRet = rht.update();

  // The humidity(), tempC(), and tempF() functions can be called -- after 
  // a successful update() -- to get the last humidity and temperature value 
  latestHumidity = rht.humidity();
  latestTempC = rht.tempC();
  latestTempF = rht.tempF();
  
}

getRTCpcf8523.ino

// PCF8523 Precision RTC 
void setupRTC() {

  // pcf8523 Precision RTC   
  if (! rtc.begin()) {
    while (1);
  }  
  if (! rtc.initialized()) {
    // Following line sets the RTC to the date & time this sketch was compiled
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
    // This line sets the RTC with an explicit date & time, for example to set
    // January 21, 2014 at 3am you would call:
    // rtc.adjust(DateTime(2018, 9, 29, 12, 17, 0));
  }
  
}
// Date and Time RTC
void isRTC () {

  // Date and Time
  DateTime now = rtc.now();
  // Date
  dateRTC = now.year(), DEC; 
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.month(), DEC;
  dateRTC = dateRTC + "/";
  dateRTC = dateRTC + now.day(), DEC;
  // Time
  timeRTC = now.hour(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.minute(), DEC;
  timeRTC = timeRTC + ":";
  timeRTC = timeRTC + now.second(), DEC;
  
}

getSD.ino

// SD Card
void setupSD() {

  // SD Card
    pinMode( chipSelect , OUTPUT );
    if(!SD.begin( chipSelect )){
        ;  
        return;
    }
    uint8_t cardType = SD.cardType();

    if(cardType == CARD_NONE){
        ; 
        return;
    }

    //Serial.print("SD Card Type: ");
    if(cardType == CARD_MMC){
        ; 
    } else if(cardType == CARD_SD){
        ; 
    } else if(cardType == CARD_SDHC){
        ; 
    } else {
        ; 
    } 

    uint64_t cardSize = SD.cardSize() / (1024 * 1024);
  
}
// SD Card
void isSD() {

  zzzzzz = "";

  zzzzzz = uid + "|" + sver + "|" + Status + "|" + TargetLon + "|" + TargetLat + "|" + dateRTC + "|" + timeRTC + "|" + latestHumidity + "|" + latestTempC + "|" + latestTempF + "|\r";

  char msg[zzzzzz.length() + 1];

  zzzzzz.toCharArray(msg, zzzzzz.length() + 1);

  appendFile(SD, "/espdata.txt", msg );
  
}
// List Dir
void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
    dirname;
    File root = fs.open(dirname);
    if(!root){
        return;
    }
    if(!root.isDirectory()){
        return;
    }

    File file = root.openNextFile();
    while(file){
        if(file.isDirectory()){
            file.name();
            if(levels){
                listDir(fs, file.name(), levels -1);
            }
        } else {
            file.name();
            file.size();
        }
        file = root.openNextFile();
    }
}
// Write File
void writeFile(fs::FS &fs, const char * path, const char * message){
    path;
    File file = fs.open(path, FILE_WRITE);
    if(!file){
        return;
    }
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    file.close();
}
// Append File
void appendFile(fs::FS &fs, const char * path, const char * message){
    //Serial.printf("Appending to file: %s\n", path);
    path;
    File file = fs.open(path, FILE_APPEND);
    if(!file){
        return;
    }
    if(file.print(message)){
        ;  
    } else {
        ;  
    }
    file.close();
}

setup.ino

// Setup
void setup() {

  // EEPROM with unique ID
  EEPROM.begin(EEPROM_SIZE);
   
  // Get Unit ID
  GetUID();

  // GPS Receiver
  // Setup GPS
  setupGPS();
  
  // SHARP Display start & clear the display
  display.begin();
  display.clearDisplay();

  isDisplayUID();

  delay( 5000 );
  
  // Initialize the LED Green
  pinMode(iLEDGreen, OUTPUT);

  // PCF8523 Precision RTC 
  setupRTC();

  // Date and Time RTC
  isRTC();

  // RHT03 Humidity and Temperature Sensor
  // Call rht.begin() to initialize the sensor and our data pin
  rht.begin(RHT03_DATA_PIN);

  // SD Card
  setupSD();

  // Rocker Switches
  pinMode(iRow1, INPUT);

}

Follow Us

Web: https://www.donluc.com/
Web: http://neosteamlabs.com/
Web: http://www.jlpconsultants.com/
YouTube: https://www.youtube.com/channel/UC5eRjrGn1CqkkGfZy0jxEdA
Facebook: https://www.facebook.com/neosteam.labs.9/
Instagram: https://www.instagram.com/neosteamlabs/
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Twitter: https://twitter.com/labs_steam
Etsy: https://www.etsy.com/shop/NeoSteamLabs

Don Luc

Posted in #11 - ESP32, Adafruit, Digital Electronics, ESP32, Fritzing, Microcontrollers, Program ESP32, Projects, SparkFun | Tagged , , , , , , , , , , | Leave a comment
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