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#DonLucElectronics #DonLuc #DFRobot #Smoke #CH4 #VOC #SHTC3 #SD #FireBeetle2ESP32E #Display #EEPROM #ESP32 #IoT #Arduino #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant

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Adafruit MicroSD card breakout board+

Not just a simple breakout board, this microSD adapter goes the extra mile, designed for ease of use.

• Onboard 5 Volt -> 3 Volt regulator provides 150mA for power-hungry cards
• 3 Volt level shifting means you can use this with ease on either 3 Volt or 5 Volt systems
• Uses a proper level shifting chip, not resistors: less problems, and faster read/write access
• Use 3 or 4 digital pins to read and write 2Gb+ of storage
• Activity LED lights up when the SD card is being read or written
• Four #2 mounting holes
• Push-push socket with card slightly over the edge of the PCB so its easy to insert and remove
• Comes with 0.1″ header, unattached, so you can get it on a breadboard or use wires, your choice
• Tested and assembled here at the Adafruit factory
• Works great with Arduino, with tons of example code and wiring diagrams

DL2408Mk06

1 x DFRobot FireBeetle 2 ESP32-E
1 x Adafruit MicroSD card breakout board+
1 x MicroSD 2 GB
1 x Fermion: MEMS Smoke Gas Detection Sensor
1 x Fermion: MEMS Methane CH4 Gas Detection Sensor
1 x Fermion: MEMS VOC Gas Detection Sensor
1 x Fermion: SHTC3 Temperature and Humidity Sensor
1 x Fermion: 2.0″ 320×240 IPS TFT LCD
1 x GDL Line 10 CM
1 x Lithium Ion Battery – 1000mAh
1 x Switch
1 x USB 3.1 Cable A to C

FireBeetle 2 ESP32-E

VOC – A1
CH4 – A2
SMO – A3
LED – 2
SCK – 18
MOSI – 23
MISO – 19
CS – 13
SCL – 22
SDA – 21
DC – D2
CS – D6
RST – D3
VIN – +3.3V
GND – GND

DL2408Mk06p

DL2408Mk06p.ino

/****** Don Luc Electronics © ******
Software Version Information
Project #29 - DFRobot - Micro SD Card Breakout Board - Mk27
29-27
DL2408Mk06p.ino
DL2408Mk06
1 x DFRobot FireBeetle 2 ESP32-E
1 x Adafruit MicroSD card breakout board+
1 x MicroSD 2 GB
1 x Fermion: MEMS Smoke Gas Detection Sensor
1 x Fermion: MEMS Methane CH4 Gas Detection Sensor
1 x Fermion: MEMS VOC Gas Detection Sensor
1 x Fermion: SHTC3 Temperature and Humidity Sensor
1 x Fermion: 2.0" 320x240 IPS TFT LCD
1 x GDL Line 10 CM
1 x Lithium Ion Battery - 1000mAh
1 x Switch
1 x USB 3.1 Cable A to C
*/

// Include the Library Code
// EEPROM Library to Read and Write EEPROM
// with Unique ID for Unit
#include "EEPROM.h"
// DFRobot Display GDL API
#include <DFRobot_GDL.h>
// Arduino
#include <Arduino.h>
// Wire
#include <Wire.h>
// SHTC3 Temperature and Humidity Sensor
#include "SHTSensor.h"
// SD Card
#include "FS.h"
#include "SD.h"
#include "SPI.h"

// MEMS Smoke Gas
int iSensorSmoke = A3;
int iSensorValueSmoke = 0;
int z = 0;

// MEMS CH4 Gas
int iSensorCH4 = A2;
int iSensorValueCH4 = 0;
int y = 0;

// MEMS VOC Gas
int iSensorVOC = A1;
int iSensorValueVOC = 0;
int x = 0;

// MicroSD Card
const int chipSelect = 13;
String zzzzzz = "";

// SHTC3 Temperature and Humidity Sensor
SHTSensor sht;
// Temperature
float T;
// Humidity
float H;

// Defined ESP32
#define TFT_DC  D2
#define TFT_CS  D6
#define TFT_RST D3

/*dc=*/ /*cs=*/ /*rst=*/
// DFRobot Display 240x320
DFRobot_ST7789_240x320_HW_SPI screen(TFT_DC, TFT_CS, TFT_RST);

// LED Green
int iLEDGreen = 2;

// EEPROM Unique ID Information
#define EEPROM_SIZE 64
String uid = "";

// Software Version Information
String sver = "29-27";

void loop() {

  // MEMS Smoke Gas
  isSmoke();
  
  // MEMS CH4 Gas
  isCH4();
  
  // MEMS VOC Gas
  isVOC();
  
  // SHTC3 Temperature and Humidity Sensor
  isSHTC3();

  // DFRobot Display 240x320 - Temperature and Humidity, VOC, CH4, Smoke
  isDisplayTH();

  // MicroSD Card
  isSD();

  // Delay 5 Second
  delay( 5000 );

}

getCH4.ino

// MEMS CH4 Gas
// is CH4
void isCH4(){

  // MEMS CH4 Gas
  y = analogRead( iSensorCH4 );
  iSensorValueCH4 = map(y, 1, 4095, 1, 10000);
  
}

getDisplay.ino

// DFRobot Display 240x320
// DFRobot Display 240x320 - UID
void isDisplayUID() {

    // DFRobot Display 240x320
    // Text Display
    // Text Wrap
    screen.setTextWrap(false);
    // Rotation
    screen.setRotation(3);
    // Fill Screen => black
    screen.fillScreen(0x0000);
    // Text Color => white
    screen.setTextColor(0xffff);
    // Font => Free Mono 9pt
    screen.setFont(&FreeMono9pt7b);
    // TextSize => 1.5
    screen.setTextSize(1.5);
    // DFRobot Display
    screen.setCursor(0, 30);
    screen.println("DFRobot Display");
    // Don Luc Electronics
    screen.setCursor(0, 60);
    screen.println("Don Luc Electronics");
    // Version
    screen.setCursor(0, 90);
    screen.println("Version");
    screen.setCursor(0, 120);
    screen.println( sver );
    // EEPROM
    screen.setCursor(0, 150);
    screen.println("EEPROM");
    screen.setCursor(0, 180);
    screen.println( uid );

}
// DFRobot Display 240x320 - Temperature and Humidity, VOC, CH4, Smoke
void isDisplayTH() {
  
    // DFRobot Display 240x320
    // Text Display
    // Text Wrap
    screen.setTextWrap(false);
    // Rotation
    screen.setRotation(3);
    // Fill Screen => black
    screen.fillScreen(0x0000);
    // Text Color => white
    screen.setTextColor(0xffff);
    // Font => Free Mono 9pt
    screen.setFont(&FreeMono9pt7b);
    // TextSize => 1.5
    screen.setTextSize(1.5);
    // Don Luc Electronics
    screen.setCursor(0, 30);
    screen.println("Don Luc Electronics");
    // Version
    screen.setCursor(0, 60);
    screen.println( sver );
    // Temperature
    screen.setCursor(0, 90);
    screen.println( "Temp: " );
    screen.setCursor(60, 90);
    screen.println( T );
    screen.setCursor(130, 90);
    screen.println("Celsius");
    // Humidity
    screen.setCursor(0, 120);
    screen.println("Humi: ");
    screen.setCursor(60, 120);
    screen.println( H );
    screen.setCursor(130, 120);
    screen.println("% RH");
    // MEMS VOC Gas
    screen.setCursor(0, 150);
    screen.println( "VOC: " );
    screen.setCursor(60, 150);
    screen.println( iSensorValueVOC );
    screen.setCursor(130, 150);
    screen.println("ppm");
    // MEMS CH4 Gas
    screen.setCursor(0, 180);
    screen.println( "CH4: " );
    screen.setCursor(60, 180);
    screen.println( iSensorValueCH4 );
    screen.setCursor(130, 180);
    screen.println("ppm");
    // MEMS Smoke Gas
    screen.setCursor(0, 210);
    screen.println( "SMO: " );
    screen.setCursor(60, 210);
    screen.println( iSensorValueSmoke );
    screen.setCursor(130, 210);
    screen.println("ppm");

}

getEEPROM.ino

// EEPROM
// isUID EEPROM Unique ID
void isUID() {
  
  // Is Unit ID
  uid = "";
  for (int x = 0; x < 7; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getSD.ino

// MicroSD Card
// MicroSD Setup
void isSetupSD() {

    // 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 = "";

  //DFR|EEPROM Unique ID|Version|
  //Temperature C|% RH|VOC|CH4|Smoke|*\r
  zzzzzz = "DFR|" + uid + "|" + sver + "|"
  + String( T ) + "|" + String( H ) + "|"
  + String( iSensorValueVOC ) + "|" + String( iSensorValueCH4 ) + "|"
  + String( iSensorValueSmoke ) + "|*\r";;

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

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

  // Append File
  appendFile(SD, "/dfrdata.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();
    
}

getSHTC3.ino

// SHTC3 Temperature and Humidity Sensor
// SHTC3
void isSHTC3(){

  // SHTC3 Temperature and Humidity Sensor
  if (sht.readSample()) {
     
     // Temperature
     T = sht.getTemperature();
     // Humidity
     H = sht.getHumidity();

  }

}

getSmoke.ino

// Smoke
// isSmoke
void isSmoke(){

  // MEMS Smoke Gas
  z = analogRead( iSensorSmoke );
  iSensorValueSmoke = map(x, 1, 4095, 1, 1000);
  
}

getVOC.ino

// MEMS VOC Gas
// is VOC
void isVOC(){

  // MEMS VOC Gas
  x = analogRead( iSensorVOC );
  iSensorValueVOC = map(x, 1, 4095, 1, 500);
  
}

setup.ino

// Setup
void setup()
{
  
  // Give display time to power on
  delay(100);

  // EEPROM Size
  EEPROM.begin(EEPROM_SIZE);
  
  // EEPROM Unique ID
  isUID();
  
  // Delay
  delay( 100 );

  // Wire
  Wire.begin();

  // Delay
  delay( 100 );

  // SHTC3 Temperature and Humidity Sensor
  sht.init();
  // SHT3x
  sht.setAccuracy(SHTSensor::SHT_ACCURACY_MEDIUM);

  // Delay
  delay( 100 );
  
  // DFRobot Display 240x320
  screen.begin();

  // Delay
  delay(100);

  // MicroSD Card
  isSetupSD();

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

  // iLEDGreen HIGH
  digitalWrite(iLEDGreen, HIGH );

  // DFRobot Display 240x320 - UID
  // Don Luc Electronics
  // Version
  // EEPROM
  isDisplayUID();

  // Delay 5 Second
  delay( 5000 );

}

——

People can contact us: https://www.donluc.com/?page_id=1927

Teacher, Instructor, E-Mentor, R&D and Consulting

• Programming Language
• Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi, Arm, Silicon Labs, Espressif, Etc…)
• IoT
• Wireless (Radio Frequency, Bluetooth, WiFi, Etc…)
• Robotics
• Automation
• Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
• Unmanned Vehicles Terrestrial and Marine
• Machine Learning
• Artificial Intelligence (AI)
• RTOS
• Sensors, eHealth Sensors, Biosensor, and Biometric
• Research & Development (R & D)
• Consulting

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Luc Paquin – Curriculum Vitae – 2024
https://www.donluc.com/luc/

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Don Luc