#define pinRelay 21
#define pinButton 15

int dataButton=0;
void setup() {
  Serial.begin(115200);
  pinMode(pinRelay,OUTPUT);
  pinMode(pinButton,INPUT);
}

void loop() {
 
  dataButton = digitalRead(pinButton);
  
  if (receiver.decode()) {
    datakuRemote = receiver.decodedIRData.command;
    Serial.println(datakuRemote);

    if(datakuRemote==48){
      digitalWrite(pinRelay, HIGH);
    }
    if(datakuRemote==24){
      digitalWrite(pinRelay, LOW);
    }

    receiver.resume();  // Receive the next value
  }

}