Arduino Interface Relay.JPG


  Can we turn on the bulb? with Relay
  Turns on an Relay on for one second, then off for one second, repeatedly.
// Pin 13 has an LED connected on most Arduino boards.
// give it a name:
int Relay = 13;
// the setup routine runs once when you press reset:
void setup() {                
  // initialize the digital pin as an output.
  pinMode(Relay, OUTPUT);     
// the loop routine runs over and over again forever:
void loop() {
  digitalWrite(Relay, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(1000);               // wait for a second
  digitalWrite(Relay, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);               // wait for a second