// C++ code
//
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
int baselineTemp = 0;

int celsius = 0;

int fahrenheit = 0;

LiquidCrystal_I2C lcd( 0x27, 16, 2);

void setup()
{
  pinMode(A0, INPUT);
  Serial.begin(9600);
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);

   Serial.begin(115200);
  while (!Serial) // wait for serial port to connect. Needed for native USB
  {
    delay(10); 
  }
  Serial.println( "The sketch has started.");


  Wire.begin();              // use the default, GPIO4 = SDA, GPIO5 = SCL

  Serial.print( "Scanning for I2C addresses: ");  
  Serial.println( "Ready.");

  // Initial text on the first display
  lcd.init();
  lcd.backlight();           // turn on backlight

  lcd.setCursor( 0, 0);
  lcd.print( "It is working");

  lcd.setCursor( 0, 1);
}

void loop()
{
  // set threshold temperature to activate LEDs
  baselineTemp = 40;
  // measure temperature in Celsius
  celsius = map(((analogRead(A0) - 20) * 3.04), 0, 1023, -40, 125);
  // convert to Fahrenheit
  fahrenheit = ((celsius * 9) / 5 + 32);
  Serial.println(celsius);
  Serial.println(" C, ");
  Serial.println(fahrenheit);
  Serial.println(" F");
  delay(1000); // Wait for 1000 millisecond(s)
}