#03 – LCD Shield

SparkFun – Screw – Phillips Head (1/4″, 4-40)

Published August 27, 2015 | By DonLuc

SparkFun: PRT-10453

Description: There are your standard Philips-head 4-40 screws. They are ¼” long and come in packs of ten. This is the screw size we use in most of the holes for our breakout boards. Check below for other associated hardware. 10 packs.

Don Luc

Posted in #01 - AcceleroSynth, #02 - Glasses LED, #03 - LCD Shield, Arduino, Digital Electronics, Microcontrollers, Musical Instruments, Projects, SparkFun, Synth | Leave a comment

Kingbright – 3mm Low Current Red LED

Published August 18, 2015 | By DonLuc

Kingbright: WP710A10LSRD

3mm Low Current Red Led

Emitting Color: Red
Material: GaAlAs
Color/Wavelenght: 640nm
Lens Type: Color Diffused

Product Featured

Low power consumption
Popular T-1 diameter package
Viewing angle – 34°
Available on tape and reel
RoHS compliant

Applications

Traffic signage
Signage application
Decorative & entertainment lighting
Commercial & Residential architectural lighting

Don Luc

Posted in #01 - AcceleroSynth, #03 - LCD Shield, Arduino, Digital Electronics, Kingbright, Microcontrollers, Musical Instruments, Projects, Synth | Leave a comment

Kingbright – 3mm Low Current Yellow LED

Published August 15, 2015 | By DonLuc

Kingbright: WP710A10LYD

3mm Low Current Yellow Led

Emitting Color: Yellow
Material: GaAsP/GaP
Color/Wavelenght: 588nm
Lens Type: Color Diffused

Product Featured

Low power consumption
Popular T-1 diameter package
Viewing angle – 34°
Available on tape and reel
RoHS compliant

Applications

Traffic signage
Signage application
Decorative & entertainment lighting
Commercial & Residential architectural lighting

Don Luc

Posted in #01 - AcceleroSynth, #03 - LCD Shield, Arduino, Digital Electronics, Kingbright, Microcontrollers, Musical Instruments, Projects, Synth | Leave a comment

Adafruit – Standard LCD 20×4 + Extras – White on Blue

Published August 12, 2015 | By DonLuc

Adafruit: 198

Description

Standard HD44780 LCDs are useful for creating standalone projects.

20 characters wide, 4 rows
White text on blue background
Connection port is 0.1″ pitch, single row for easy breadboarding and wiring
Single LED backlight with a resistor included, you can power it directly from 5V. If it’s too bright for you, it can be dimmed easily with a resistor or PWM and uses much less power than LCD with EL (electroluminescent) backlights
Can be fully controlled with only 6 digital lines!
Built in character set supports English/Japanese text, see the HD44780 datasheet for the full character set
Up to 8 extra characters can be created for custom glyphs or ‘foreign’ language support (like special accents)
Comes with necessary contrast potentiometer and strip of header

For more information, check out our detailed step-by-step Arduino+LCD tutorial

We have a generic 20×4 datasheet that has dimensions and pin-locations (the exact model may vary but the pinout, size and protocol information is the same). We also have a HD44780 datasheet with the detailed commands for control.

Don Luc

Posted in #01 - AcceleroSynth, #03 - LCD Shield, Adafruit, Arduino, Digital Electronics, Microcontrollers, Musical Instruments, Projects, Synth | Leave a comment

SparkFun – Arduino Uno – R3

Published July 31, 2015 | By DonLuc

SparkFun: DEV-11021

Description: This is the new Arduino Uno R3. In addition to all the features of the previous board, the Uno now uses an ATmega16U2 instead of the 8U2 found on the Uno (or the FTDI found on previous generations). This allows for faster transfer rates and more memory. No drivers needed for Linux or Mac (inf file for Windows is needed and included in the Arduino IDE), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc.

The Uno R3 also adds SDA and SCL pins next to the AREF. In addition, there are two new pins placed near the RESET pin. One is the IOREF that allow the shields to adapt to the voltage provided from the board. The other is a not connected and is reserved for future purposes. The Uno R3 works with all existing shields but can adapt to new shields which use these additional pins.

Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP). The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux).

Note: The Arduino Uno R3 requires the Arduino 1.0 drivers folder in order to install properly on some computers. We have tested and confirmed that the R3 can be programmed in older versions of the IDE. However, the first time using the R3 on a new computer, you will need to have Arduino 1.0 installed on that machine. If you are interested in reading more about the changes to the IDE, check out the official Arduino 1.0 Release notes!

Features:

ATmega328 microcontroller
Input voltage – 7-12V
14 Digital I/O Pins (6 PWM outputs)
6 Analog Inputs
32k Flash Memory
16Mhz Clock Speed

Don Luc

Posted in #01 - AcceleroSynth, #02 - Glasses LED, #03 - LCD Shield, Arduino, Digital Electronics, Microcontrollers, Musical Instruments, Projects, SparkFun, Synth | Leave a comment

SparkFun – Arduino Pro Mini 328 – 3.3V/8MHz

Published June 6, 2015 | By DonLuc

SparkFun: DEV-11114

Description: It’s blue! It’s thin! It’s the Arduino Pro Mini! SparkFun’s minimal design approach to Arduino. This is a 3.3V Arduino running the 8MHz bootloader. Arduino Pro Mini does not come with connectors populated so that you can solder in any connector or wire with any orientation you need. We recommend first time Arduino users start with the Uno R3. It’s a great board that will get you up and running quickly. The Arduino Pro series is meant for users that understand the limitations of system voltage (3.3V), lack of connectors, and USB off board.

We really wanted to minimize the cost of an Arduino. In order to accomplish this we used all SMD components, made it two layer, etc. This board connects directly to the FTDI Basic Breakout board and supports auto-reset. The Arduino Pro Mini also works with the FTDI cable but the FTDI cable does not bring out the DTR pin so the auto-reset feature will not work. There is a voltage regulator on board so it can accept voltage up to 12VDC. If you’re supplying unregulated power to the board, be sure to connect to the “RAW” pin on not VCC.

The latest and greatest version of this board breaks out the ADC6 and ADC7 pins as well as adds footprints for optional I2C pull-up resistors! We also took the opportunity to slap it with the OSHW logo.

Dimensions: 0.7×1.3″ (18x33mm)

Features:

ATmega328 running at 8MHz with external resonator (0.5% tolerance)
Low-voltage board needs no interfacing circuitry to popular 3.3V devices and modules (GPS, accelerometers, sensors, etc)
0.8mm Thin PCB
USB connection off board
Weighs less than 2 grams!
Supports auto-reset
3.3V regulator
Max 150mA output
Over current protected
DC input 3.3V up to 12V
On board Power and Status LEDs
Analog Pins: 8
Digital I/Os: 14

Don Luc

Posted in #02 - Glasses LED, #03 - LCD Shield, Arduino, Microcontrollers, Projects, SparkFun | Leave a comment

Project #3 – LCD Shield – Mk5

Published April 12, 2015 | By DonLuc

LCDShieldMk5.1.ino

// ***** Don Luc *****
// Software Version Information
// 5.1

// include the library code:
#include <Wire.h>
#include <Adafruit_MCP23017.h>
#include <Adafruit_RGBLCDShield.h>
#include <SPI.h>
#include <RTClib.h>
#include <RTC_DS3231.h>
#include <OneWire.h> 

RTC_DS3231 RTC;

#define SQW_FREQ DS3231_SQW_FREQ_1024     //0b00001000   1024Hz

Adafruit_RGBLCDShield RGBLCDShield = Adafruit_RGBLCDShield();

// These #defines make it easy to set the backlight color
#define OFF 0x0
#define RED 0x1
#define YELLOW 0x3
#define GREEN 0x2
#define TEAL 0x6
#define BLUE 0x4
#define VIOLET 0x5
#define WHITE 0x7

int yy = 0;
uint8_t momentaryButton = 0;

// Chorno
boolean isChorno = true;
boolean isChor = false;
char datastr[100];
int zz = 0;
// LDR (light dependent resistor)
int LDR_Pin = A0;
int LDRReading = 0;
String LDR = "";
// Temperature chip i/o
int DS18S20_Pin = 2; //DS18S20 Signal pin on digital 2
OneWire ds(DS18S20_Pin);  // on digital pin 2
float temperature = 0;
String tempZ = "";
// Potentiometer
int potPin = A2;    // select the input pin for the potentiometer
int ledPin = 4;   // select the pin for the LED
boolean isVal = false;
int potPot = 0;
String cap = "";

void loop() {

  RGBLCDShield.clear();
    
  // ChronoDot
  // set the cursor to column 0, line 1
  RGBLCDShield.setCursor(0, 1);
  timeChrono();
  // LDR (light dependent resistor)
  timeLDR();
  // Temperature chip i/o
  temperatu();
  // Potentiometer
  getPotentio();
    
  momentaryButton = RGBLCDShield.readButtons();

  // set the cursor to column 0, line 0
  RGBLCDShield.setCursor(0,0);

  switch ( yy ) {
    case 1:
      // LDR (light dependent resistor)
      isLDR();
      break;
    case 2:
      // Temperature chip i/o
      isTe();
      break;
    case 3:
      // Potentiometer
      isCap();
      break;
    case 4:
      // Yellow
      RGBLCDShield.print("YELLOW - RIGHT");
      break;
    case 5:
      // OFF
      RGBLCDShield.print("OFF");
      break;
    default: 
      yy = 0;
      RGBLCDShield.print("Don Luc!!!");
   }
   
  if ( momentaryButton ) {
    
    if ( momentaryButton & BUTTON_UP ) {
      isChorno = true;
      yy = 1;
      // LDR (light dependent resistor)
      RGBLCDShield.setBacklight(GREEN);
    }
    
    if ( momentaryButton & BUTTON_DOWN ) {
      isChorno = true;
      yy = 2;
      // Temperature chip i/o
      RGBLCDShield.setBacklight(RED);
    }
    
    if ( momentaryButton & BUTTON_LEFT ) {
      isChorno = true;
      yy =3;
      // Potentiometer
      RGBLCDShield.setBacklight(BLUE);
    }
    
    if ( momentaryButton & BUTTON_RIGHT ) {
      isChorno = true;
      yy = 4;
      //RGBLCDShield.print("YELLOW - RIGHT");
      RGBLCDShield.setBacklight(YELLOW);
    }
    
    if ( momentaryButton & BUTTON_SELECT ) {
      isChorno = false;
      yy = 5;
      //RGBLCDShield.print("OFF");
      RGBLCDShield.setBacklight(OFF);
    }
    
  }
  
  delay(5000);
  
}

setup.ino

void setup() {    
   
  // set up the LCD's number of columns and rows: 
  RGBLCDShield.begin(16, 2);
  RGBLCDShield.setBacklight(VIOLET);
  
  // ChronoDot
  setupChrono();
  
  // Pot
  pinMode(ledPin, OUTPUT);
    
}

ChronoDot.ino

void setupChrono() {

  RTC.begin();
  
  DateTime now = RTC.now();
  DateTime compiled = DateTime(__DATE__, __TIME__);
  RTC.getControlRegisterData( datastr[0] );  
   
}

void timeChrono() {
 
    DateTime now = RTC.now();
    DateTime isNow (now.unixtime() + 5572 * 86400L + 26980);

    if ( isChorno == true )
    {
      if ( isChor == false ) 
        {          
          isChor = true;
          RGBLCDShield.print(isNow.year(), DEC);
          RGBLCDShield.print('/');
          RGBLCDShield.print(isNow.month(), DEC);
          RGBLCDShield.print('/');
          RGBLCDShield.print(isNow.day(), DEC);
          RGBLCDShield.print(' ');
          RGBLCDShield.print(' ');
        }
        else if ( isChor == true )
        {
          isChor = false;
          RGBLCDShield.print(isNow.hour(), DEC);
          RGBLCDShield.print(':');
          RGBLCDShield.print(isNow.minute(), DEC);
          RGBLCDShield.print(':');
          RGBLCDShield.print(isNow.second(), DEC);
          RGBLCDShield.print(' ');
          RGBLCDShield.print(' ');
        }
    }
    
}

getLDR.ino

void timeLDR() {
  
  // LDR
  LDRReading = analogRead(LDR_Pin);
 
}

void isLDR() {
  
  LDR = "LDR: ";
  LDR.concat(LDRReading); 
  // LDR (light dependent resistor)
  RGBLCDShield.print( LDR ); 
  
}

getPot.ino

void getPotentio() {
  
    if ( isVal == false ) 
    {
       isVal = true;
       digitalWrite(ledPin, HIGH);  // turn the ledPin on
    }
    else if ( isVal == true )
    {
       isVal = false;
       digitalWrite(ledPin, LOW);  // turn the ledPin off
    }       
    potPot = analogRead(potPin);    // read the value from the sensor
  
}

void isCap(){
  
    cap = "Pot: ";
    cap.concat(potPot);
    RGBLCDShield.print( cap );

}

getTemperature.ino

float getTemp() {
  
  //returns the temperature from one DS18S20 in DEG Celsius
  byte data[12];
  byte addr[8];

  if ( !ds.search(addr)) {
      //no more sensors on chain, reset search
      ds.reset_search();
      return -1001;
  }

  if ( OneWire::crc8( addr, 7) != addr[7]) {
      return -1002;
  }

  if ( addr[0] != 0x10 && addr[0] != 0x28) {
      return -1003;
  }

  ds.reset();
  ds.select(addr);
  ds.write(0x44,1); // start conversion, with parasite power on at the end

  byte present = ds.reset();
  ds.select(addr);    
  ds.write(0xBE); // Read Scratchpad

  
  for (int i = 0; i < 9; i++) { // we need 9 bytes
    data[i] = ds.read();
  }
  
  ds.reset_search();
  
  byte MSB = data[1];
  byte LSB = data[0];

  float tempRead = ((MSB << 8) | LSB); //using two's compliment
  float TemperatureSum = tempRead / 16;
  
  return TemperatureSum;

}

void temperatu(){
  
  temperature = getTemp();
 
}

void isTe() {
  
  tempZ = "Temp: ";
  tempZ.concat(temperature);
  tempZ.concat("C");
  RGBLCDShield.print( tempZ );
  
}

Don Luc

Posted in #03 - LCD Shield, Arduino, Microcontrollers, Projects | Leave a comment

Project #3 – LCD Shield – Mk4

Published April 10, 2015 | By DonLuc

1 X Mini Photocell

1 X Resistor 10k Ohm

1 X One Wire Digital Temperature Sensor – DS18B20

1 X Resistor 4.7k Ohm

1 X Trimpot 10K with Knob

1 X Resistor 1.65k Ohm

1 X 3MM Low Current Red LED

14 X Jumper Wires Premium 3″ M/M

1 X Project #3 – LED Shield – Mk3

LCDShieldMk4.3.ino

// ***** Don Luc *****
// Software Version Information
// 4.3

// include the library code:
#include <Wire.h>
#include <Adafruit_MCP23017.h>
#include <Adafruit_RGBLCDShield.h>
#include <SPI.h>
#include <RTClib.h>
#include <RTC_DS3231.h>
#include <OneWire.h> 

RTC_DS3231 RTC;

#define SQW_FREQ DS3231_SQW_FREQ_1024     //0b00001000   1024Hz

Adafruit_RGBLCDShield RGBLCDShield = Adafruit_RGBLCDShield();

// These #defines make it easy to set the backlight color
#define OFF 0x0
#define RED 0x1
#define YELLOW 0x3
#define GREEN 0x2
#define TEAL 0x6
#define BLUE 0x4
#define VIOLET 0x5
#define WHITE 0x7

// Chorno
boolean isChorno = false;
char datastr[100];
// LDR (light dependent resistor)
int LDR_Pin = A0;
String LDR = "";
// Temperature chip i/o
int DS18S20_Pin = 2; //DS18S20 Signal pin on digital 2
OneWire ds(DS18S20_Pin);  // on digital pin 2
String tempZ = "";
// Potentiometer
int potPin = A2;    // select the input pin for the potentiometer
int ledPin = 4;   // select the pin for the LED
boolean isVal = false;
int potPot = 0;
String cap = "";

void loop() {

  // timeChrono();
  timeChrono();
  
  uint8_t momentaryButton = RGBLCDShield.readButtons();

  if ( momentaryButton ) {

    RGBLCDShield.clear();
  
    RGBLCDShield.setCursor(0,0);
    
    if ( momentaryButton & BUTTON_UP ) {
      timeLDR();
      RGBLCDShield.print( LDR );
      RGBLCDShield.setBacklight(GREEN);
    }
    
    if ( momentaryButton & BUTTON_DOWN ) {
      temperatu();
      RGBLCDShield.print( tempZ );
      RGBLCDShield.setBacklight(RED);
    }
    
    if ( momentaryButton & BUTTON_LEFT ) {
      getPotentio();
      RGBLCDShield.print( cap );
      RGBLCDShield.setBacklight(BLUE);
    }
    
    if ( momentaryButton & BUTTON_RIGHT ) {
      RGBLCDShield.print("YELLOW - RIGHT");
      RGBLCDShield.setBacklight(YELLOW);
    }
    
    if ( momentaryButton & BUTTON_SELECT ) {
      RGBLCDShield.print("OFF");
      RGBLCDShield.setBacklight(OFF);
    }
        
  }
  
  delay(3000);
  
}

setup.ino

void setup() {    
   
  // set up the LCD's number of columns and rows: 
  RGBLCDShield.begin(16, 2);
  RGBLCDShield.print("Don Luc!!!");
  RGBLCDShield.setBacklight(VIOLET);
  
  // ChronoDot
  setupChrono();
  
  // Pot
  pinMode(ledPin, OUTPUT);
   
}

ChronoDot.ino

void setupChrono() {

  RTC.begin();
  
  DateTime now = RTC.now();
  DateTime compiled = DateTime(__DATE__, __TIME__);
  RTC.getControlRegisterData( datastr[0] );  
 
}

void timeChrono() {
 
    DateTime now = RTC.now();
    DateTime isNow (now.unixtime() + 5572 * 86400L + 26980);
    
    // set the cursor to column 0, line 1
    RGBLCDShield.setCursor(0, 1);
    
    if ( isChorno == false ) 
    {
      isChorno = true;
      RGBLCDShield.print(isNow.year(), DEC);
      RGBLCDShield.print('/');
      RGBLCDShield.print(isNow.month(), DEC);
      RGBLCDShield.print('/');
      RGBLCDShield.print(isNow.day(), DEC);
      RGBLCDShield.print(' ');
      RGBLCDShield.print(' ');
    }
    else if ( isChorno == true )
    {
      isChorno = false;
      RGBLCDShield.print(isNow.hour(), DEC);
      RGBLCDShield.print(':');
      RGBLCDShield.print(isNow.minute(), DEC);
      RGBLCDShield.print(':');
      RGBLCDShield.print(isNow.second(), DEC);
      RGBLCDShield.print(' ');
      RGBLCDShield.print(' ');
    }

}

getLDR.ino

void timeLDR() {
  
  // LDR
  int LDRReading = analogRead(LDR_Pin);
  LDR = "LDR: ";
  LDR.concat(LDRReading); 

}

getPot.ino

void getPotentio() {
  
    if ( isVal == false ) 
    {
       isVal = true;
       digitalWrite(ledPin, HIGH);  // turn the ledPin on
    }
    else if ( isVal == true )
    {
       isVal = false;
       digitalWrite(ledPin, LOW);  // turn the ledPin off
    }       
    potPot = analogRead(potPin);    // read the value from the sensor
    cap = "Pot: ";
    cap.concat(potPot);

}

getTemperature.ino

float getTemp() {
  
  //returns the temperature from one DS18S20 in DEG Celsius
  byte data[12];
  byte addr[8];

  if ( !ds.search(addr)) {
      //no more sensors on chain, reset search
      ds.reset_search();
      return -1001;
  }

  if ( OneWire::crc8( addr, 7) != addr[7]) {
      return -1002;
  }

  if ( addr[0] != 0x10 && addr[0] != 0x28) {
      return -1003;
  }

  ds.reset();
  ds.select(addr);
  ds.write(0x44,1); // start conversion, with parasite power on at the end

  byte present = ds.reset();
  ds.select(addr);    
  ds.write(0xBE); // Read Scratchpad

  
  for (int i = 0; i < 9; i++) { // we need 9 bytes
    data[i] = ds.read();
  }
  
  ds.reset_search();
  
  byte MSB = data[1];
  byte LSB = data[0];

  float tempRead = ((MSB << 8) | LSB); //using two's compliment
  float TemperatureSum = tempRead / 16;
  
  return TemperatureSum;

}

void temperatu(){
  
  float temperature = getTemp();
  tempZ = "Temp: ";
  tempZ.concat(temperature);
  tempZ.concat("C");

}

Don Luc

Posted in #03 - LCD Shield, Arduino, Microcontrollers, Projects | Leave a comment

Project #3 – LCD Shield – Mk3

Published April 6, 2015 | By DonLuc

2 X Jumper Wires Premium 3″ M/M

1 X Project #3 – LED Shield – Mk2

LCDShieldMk3.0.ino

// ***** Don Luc *****
// Software Version Information
// 3.0

// include the library code:
#include <Wire.h>
#include <Adafruit_MCP23017.h>
#include <Adafruit_RGBLCDShield.h>
#include <SPI.h>
#include <RTClib.h>
#include <RTC_DS3231.h>

RTC_DS3231 RTC;

#define SQW_FREQ DS3231_SQW_FREQ_1024     //0b00001000   1024Hz

Adafruit_RGBLCDShield RGBLCDShield = Adafruit_RGBLCDShield();

// These #defines make it easy to set the backlight color
#define OFF 0x0
#define RED 0x1
#define YELLOW 0x3
#define GREEN 0x2
#define TEAL 0x6
#define BLUE 0x4
#define VIOLET 0x5
#define WHITE 0x7

boolean isChorno = false;

char datastr[100];

void loop() {
   
  // timeChrono();
  timeChrono();

  uint8_t momentaryButton = RGBLCDShield.readButtons();

  if ( momentaryButton ) {

    RGBLCDShield.clear();
  
    RGBLCDShield.setCursor(0,0);
    
    if ( momentaryButton & BUTTON_UP ) {
      RGBLCDShield.print("GREEN - UP");
      RGBLCDShield.setBacklight(GREEN);
    }
    
    if ( momentaryButton & BUTTON_DOWN ) {
      RGBLCDShield.print("RED - DOWN");
      RGBLCDShield.setBacklight(RED);
    }
    
    if ( momentaryButton & BUTTON_LEFT ) {
      RGBLCDShield.print("BLUE - LEFT");
      RGBLCDShield.setBacklight(BLUE);
    }
    
    if ( momentaryButton & BUTTON_RIGHT ) {
      RGBLCDShield.print("YELLOW - RIGHT");
      RGBLCDShield.setBacklight(YELLOW);
    }
    
    if ( momentaryButton & BUTTON_SELECT ) {
      RGBLCDShield.print("OFF");
      RGBLCDShield.setBacklight(OFF);
    }
        
  }
  
  delay(3000);
  
}

setup.ino

void setup() {

  // set up the LCD's number of columns and rows: 
  RGBLCDShield.begin(16, 2);
  RGBLCDShield.print("Don Luc!!!");
  RGBLCDShield.setBacklight(VIOLET);
  
  // ChronoDot
  setupChrono();    
  
}

ChronoDot.ino

void setupChrono() {

  RTC.begin();
  
  DateTime now = RTC.now();
  DateTime compiled = DateTime(__DATE__, __TIME__);
  RTC.getControlRegisterData( datastr[0] );    

}

void timeChrono() {

    DateTime now = RTC.now();
    DateTime isNow (now.unixtime() + 5572 * 86400L + 26980);
    
    // set the cursor to column 0, line 1
    RGBLCDShield.setCursor(0, 1);
 
    if ( isChorno == false ) 
    {
      isChorno = true;
      RGBLCDShield.print(isNow.year(), DEC);
      RGBLCDShield.print('/');
      RGBLCDShield.print(isNow.month(), DEC);
      RGBLCDShield.print('/');
      RGBLCDShield.print(isNow.day(), DEC);
      RGBLCDShield.print(' ');
      RGBLCDShield.print(' ');
    }
    else if ( isChorno == true )
    {
      isChorno = false;
      RGBLCDShield.print(isNow.hour(), DEC);
      RGBLCDShield.print(':');
      RGBLCDShield.print(isNow.minute(), DEC);
      RGBLCDShield.print(':');
      RGBLCDShield.print(isNow.second(), DEC);
      RGBLCDShield.print(' ');
      RGBLCDShield.print(' ');
    }
  
}

Don Luc

Posted in #03 - LCD Shield, Arduino, Microcontrollers, Projects | Leave a comment

Project #3 – LCD Shield – Mk2

Published April 4, 2015 | By DonLuc

1 X ChronoDot

1 X ProtoScrewShield

1 X Breadboard

4 X Jumper Wires Premium 3″ M/M

1 X CR1632

1 X Project #3 – LED Shield – Mk1

LCDShieldMk2.2.ino

// ***** Don Luc *****
// Software Version Information
// 2.2

// include the library code:
#include <Wire.h>
#include <Adafruit_MCP23017.h>
#include <Adafruit_RGBLCDShield.h>

Adafruit_RGBLCDShield RGBLCDShield = Adafruit_RGBLCDShield();

// These #defines make it easy to set the backlight color
#define OFF 0x0
#define RED 0x1
#define YELLOW 0x3
#define GREEN 0x2
#define TEAL 0x6
#define BLUE 0x4
#define VIOLET 0x5
#define WHITE 0x7

uint8_t i = 0;

void loop() {
  
  timeChrono();

  uint8_t momentaryButton = RGBLCDShield.readButtons();

  if ( momentaryButton ) {
    
    RGBLCDShield.clear();
    RGBLCDShield.setCursor(0,0);
    
    if ( momentaryButton & BUTTON_UP ) {
      RGBLCDShield.print("GREEN - UP ");
      RGBLCDShield.setBacklight(GREEN);
    }
    
    if ( momentaryButton & BUTTON_DOWN ) {
      RGBLCDShield.print("RED - DOWN ");
      RGBLCDShield.setBacklight(RED);
    }
    
    if ( momentaryButton & BUTTON_LEFT ) {
      RGBLCDShield.print("BLUE - LEFT ");
      RGBLCDShield.setBacklight(BLUE);
    }
    
    if ( momentaryButton & BUTTON_RIGHT ) {
      RGBLCDShield.print("YELLOW - RIGHT ");
      RGBLCDShield.setBacklight(YELLOW);
    }
    
    if ( momentaryButton & BUTTON_SELECT ) {
      RGBLCDShield.print("OFF ");
      RGBLCDShield.setBacklight(OFF);
    }
        
  }
  
  delay(1000);
  
}

setup.ino

void setup() {

  // set up the LCD's number of columns and rows: 
  RGBLCDShield.begin(16, 2);
  RGBLCDShield.print("Don Luc!!!");
  RGBLCDShield.setBacklight(VIOLET);
  
  // ChronoDot
  setupChrono();    
  
}

ChronoDot.ino

void setupChrono() {

  // clear /EOSC bit
  // Sometimes necessary to ensure that the clock
  // keeps running on just battery power. 
  Wire.beginTransmission(0x68); // address DS3231
  Wire.write(0x0E); // select register
  Wire.write(0b00011100); // write register bitmap, bit 7 is /EOSC
  Wire.endTransmission();  

}

void timeChrono() {

  // set the cursor to column 0, line 1
  RGBLCDShield.setCursor(0, 1);
  
   // send request to receive data starting at register 0
  Wire.beginTransmission(0x68); // 0x68 is DS3231 device address
  Wire.write((byte)0); // start at register 0
  Wire.endTransmission();
  Wire.requestFrom(0x68, 3); // request three bytes (seconds, minutes, hours)
 
  while(Wire.available())
  { 

    int seconds = Wire.read(); // get seconds
    int minutes = Wire.read(); // get minutes
    int hours = Wire.read();   // get hours
 
    seconds = (((seconds & 0b11110000)>>4)*10 + (seconds & 0b00001111)); // convert BCD to decimal
    minutes = (((minutes & 0b11110000)>>4)*10 + (minutes & 0b00001111)); // convert BCD to decimal
    hours = (((hours & 0b00100000)>>5)*20 + ((hours & 0b00010000)>>4)*10 + (hours & 0b00001111)); // convert BCD to decimal (assume 24 hour mode)
 
    // print the number of seconds since reset:
    RGBLCDShield.print(hours);
    RGBLCDShield.print(":");
    RGBLCDShield.print(minutes);
    RGBLCDShield.print(":");
    RGBLCDShield.print(seconds);

  }
  
}

Don Luc

Posted in #03 - LCD Shield, Arduino, Microcontrollers, Projects | Leave a comment