#include<LiquidCrystal.h>
LiquidCrystal lcd(3,4,5,6,7,8);
String data;
int r1=10;
int r2=11;
int r3=12;
int r4=13;
void setup() {
  // put your setup code here, to run once:
   Serial.begin(9600);
   lcd.begin(16,2);
   lcd.setCursor(0,0);
   lcd.print("Mikrodenetleyici");
   lcd.setCursor(0,1);
   lcd.print(("uygulamalari"));
   Serial.print("Arda Ahmet Ates 91111723002");
   pinMode(r1, OUTPUT);
   pinMode(r2, OUTPUT);
   pinMode(r3, OUTPUT);
   pinMode(r4, OUTPUT);
}

void loop() {
  
if(Serial.available()>0)
{
  data = Serial.readString();
  data.trim();
  if(data=="relay1 is on")
  {
    Serial.println("relay1 is on condition");
  lcd.setCursor(0,0);
   lcd.print("relay1  is");
   lcd.setCursor(0,1);
   lcd.print(("on condition"));
    digitalWrite(r1, HIGH);
  }
  if(data=="relay1 is off")
  {
    Serial.println("relay is off condition");
    lcd.setCursor(0,0);
   lcd.print("relay1  is");
   lcd.setCursor(0,1);
   lcd.print(("off condition"));  
    digitalWrite(r1, LOW);
  }
  if(data=="relay2 is on")
  {
    Serial.println("relay is on condition");
    lcd.setCursor(0,0);
   lcd.print("relay2  is");
   lcd.setCursor(0,1);
   lcd.print(("on condition"));
    digitalWrite(r2, HIGH);
  }
  if(data=="relay2 is off")
  {
    Serial.println("relay is off condition");
    lcd.setCursor(0,0);
   lcd.print("relay2  is");
   lcd.setCursor(0,1);
   lcd.print(("off condition"));
    digitalWrite(r2, LOW);
}
if(data=="relay3 is on")
  {
    Serial.println("relay is on condition");
    lcd.setCursor(0,0);
   lcd.print("relay3  is");
   lcd.setCursor(0,1);
   lcd.print(("on condition"));
    digitalWrite(r3, HIGH);
  }
  if(data=="relay3 is off")
  {
    Serial.println("relay is off condition");
    lcd.setCursor(0,0);
   lcd.print("relay3  is");
   lcd.setCursor(0,1);
   lcd.print(("off condition"));
    digitalWrite(r3, LOW);
  
}
if(data=="relay4 is on")
  {
    Serial.println("relay is on condition");
    lcd.setCursor(0,0);
   lcd.print("relay4  is");
   lcd.setCursor(0,1);
   lcd.print(("on condition"));
    digitalWrite(r4, HIGH);
  }
  if(data=="relay4 is off")
  {
    Serial.println("relay is off condition");
    lcd.setCursor(0,0);
   lcd.print("relay4  is");
   lcd.setCursor(0,1);
   lcd.print(("off condition"));
    digitalWrite(r4, LOW);
}
}
}