/*************************************************** 
MLX90614 Thermopile + LCD using Adafruit Libs
Author: BehindTheSciences.com
 ****************************************************/

#include <Wire.h>
#include <Adafruit_MLX90614.h>
#include <SoftwareSerial.h>// import the serial library
#include <LiquidCrystal.h>
#define trigPin 5
#define echoPin 6
#define RS 6
#define RW 2
#define EN 4
#define VO 5
#define D4 7
#define D5 8
#define D6 A0
#define D7 3

// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(RS, EN, D4, D5, D6, D7);

Adafruit_MLX90614 mlx = Adafruit_MLX90614();

void setup() {
  Serial.begin(9600);

  Serial.println("Adafruit MLX90614 test");  

  mlx.begin();  
  /*Initialisation of the LCD */
  pinMode(D4, OUTPUT);
  pinMode(D5, OUTPUT);
  pinMode(D6, OUTPUT);
  pinMode(D7, OUTPUT);
  
  pinMode(EN, OUTPUT); 
  digitalWrite(EN, HIGH);
  pinMode(RS, OUTPUT); 
  digitalWrite(RS, LOW);
  pinMode(VO, OUTPUT); 
  digitalWrite(VO, LOW);

  pinMode(RW, OUTPUT); 
  digitalWrite(RW, LOW);
  
  delay(20); 
  digitalWrite(D7, LOW);
  digitalWrite(D6, LOW);
  digitalWrite(D5, HIGH);
  digitalWrite(D4, HIGH);
  delay(10);
  digitalWrite(D7, LOW);
  digitalWrite(D6, LOW);
  digitalWrite(D5, HIGH);
  digitalWrite(D4, LOW);
  
  digitalWrite(D7, LOW);
  digitalWrite(D6, LOW);
  digitalWrite(D5, HIGH);
  digitalWrite(D4, LOW);
  
  digitalWrite(D7, HIGH);
  digitalWrite(D6, HIGH);

  digitalWrite(D7, LOW);
  digitalWrite(D6, LOW);
  digitalWrite(D5, LOW);
  digitalWrite(D4, LOW);
  
  digitalWrite(D7, HIGH);
  digitalWrite(D6, LOW);
  digitalWrite(D5, LOW);
  digitalWrite(D4, LOW);

  digitalWrite(D7, LOW);
  digitalWrite(D6, LOW);
  digitalWrite(D5, LOW);
  digitalWrite(D4, LOW);

  digitalWrite(D7, LOW);
  digitalWrite(D6, LOW);
  digitalWrite(D5, LOW);
  digitalWrite(D4, HIGH);

  digitalWrite(D7, LOW);
  digitalWrite(D6, LOW);
  digitalWrite(D5, LOW);
  digitalWrite(D4, LOW);

  digitalWrite(D7, LOW);
  digitalWrite(D6, HIGH);
  digitalWrite(D5, HIGH);
  digitalWrite(D4, HIGH);
/*-----------------------*/
lcd.begin(16, 2);
  // Print a message to the LCD.
  lcd.setCursor(3, 0);
}

void loop() {
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Object = "); lcd.print(mlx.readObjectTempC()); lcd.print((char)223); lcd.print("C");
  lcd.setCursor(0, 1);
  lcd.print("Ambient= "); lcd.print(mlx.readAmbientTempC()); lcd.print((char)223); lcd.print("C");
  delay(500);
}