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

Code:

FOR MASTER : 

//MASTER Arduino 

#include

void setup()
{
  pinMode(A1, INPUT);
  Serial.begin(9600);
  Wire.begin();
  
}

void loop()
{
  float value=analogRead(A1);
  signed int voltage=(value*5)/1024; // int temp=(voltage-0.5)*100;
  Wire.beginTransmission(1);
  Wire.write(voltage);
  Wire.endTransmission();
  delay(50);
}

FOR SLAVE: 

//SLAVE Arduino 
#include
#include
LiquidCrystal lcd(12,11,5,4,3,2);
void setup()
{
  Serial.begin(9600);
  Wire.begin(1);
  Wire.onReceive(ruso);
  lcd.begin(16,2);
}
void loop()
{
  delay(50);
}

void ruso(int y)
{
  
  signed int voltage=Wire.read();
  lcd.setCursor(0,0);
  lcd.print("Voltage is ");
  //lcd.setCursor(0,1);
  lcd.print(voltage);
  //Serial.print(" voltage value \n");
  //Serial.println(5);
  delay(50);
               
}