Project 1 - Interfacing a 16*2 LCD with Arduino using I2C protocol

//SLAVE

#include<Wire.h>

#include<LiquidCrystal.h>

LiquidCrystal lcd(12,11,5,4,3,2);

void setup()

{

Serial.begin(9600);

Wire.begin(1);

Wire.onReceive(message);

lcd.begin(16,2);

}

void loop()

{

delay(50);

}

void message(int y)

{

signed int voltage=Wire.read();

lcd.setCursor(0,0);

lcd.print("the voltage is");

//lcd.setCursor(0,1);

lcd.print(voltage);

//Serial.print("voltage value\n");

//Serial.println(5);

delay(50);

}