/*const int ldrpin=A0;
const int ledpin=9;
void setup() {
  // put your setup code here, to run once:
pinMode(ledpin, OUTPUT);
}
void loop() {
  // put your main code here, to run repeatedly:
int ldrValue=analogRead(ldrpin);
if(ldrValue<400){
  digitalWrite(ledpin,HIGH);
}
else{
  digitalWrite(ledpin, LOW);
}
delay(1000);
}*/
/*#include <LiquidCrystal.h>
const int lm35=A0;
LiquidCrystal lcd(2,3,4,5,6,7);
void setup(){
  lcd.begin(16,2);
}
void loop(){
  int temp = analogRead(lm35)*0.488;
  lcd.setCursor(0,0);
  lcd.print("Temp : ");
  lcd.print(temp);
  lcd.print("C");
  delay(1000);
}*/
const int buttonpin=2;
const int relaypin=9;
void setup(){
  pinMode(buttonpin, INPUT);
  pinMode(relaypin, OUTPUT);
}
void loop(){
  int buttonstate=digitalRead(buttonpin);
  if(buttonstate==HIGH)
  {
    digitalWrite(relaypin, HIGH);
  }
  else{
    digitalWrite(relaypin,LOW);
  }
}