The Alpha Geek – Geeking Out

Project #3 – LCD Shield – Mk4

LCD Shield Mk4.01

LCD Shield Mk4.02

LCD Shield Mk4.03

LCD Shield Mk4.04

LCD Shield Mk4.05

LCD Shield Mk4.06

LCD Shield Mk4.07

LCD Shield Mk4.08

LCD Shield Mk4.09

LCD Shield Mk4.10

LCD Shield Mk4.11

LCD Shield Mk4.12

LCD Shield Mk4.13

LCD Shield Mk4.14

LCD Shield Mk4.15

LCD Shield Mk4.16

LCD Shield Mk4.17

LCD Shield Mk4.18

LCD Shield Mk4.19

LCD Shield Mk4.20

LCD Shield Mk4.21

LCD Shield Mk4.22

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

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