// pin 4,6 fron rf-rx d0,d1 // pin 13 to relay IN1 int sensorPin_on = 4; int sensorPin_off = 6; int outpin = 13; void setup() { Serial.begin(9600); pinMode(6,INPUT); pinMode(4,INPUT); pinMode(13,OUTPUT); } void loop() { int pulse_on,pulse_off; pulse_on = digitalRead(sensorPin_on); pulse_off = digitalRead(sensorPin_off); if(pulse_on == LOW) { digitalWrite(outpin,HIGH); delay(2000); } if(pulse_off == LOW) { digitalWrite(outpin,LOW); delay(2000); } }