void setup() {
  // put your setup code here, to run once:
pinMode(12, OUTPUT);//RELAY PIN
digitalWrite(12, HIGH);//Normally ON Only For Chanies Relay Module
}

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(12, LOW);//RELAY ON
  delay(100);
  digitalWrite(12, HIGH);//RELAY OFF
delay(100);

}