// name the pins
int ledPin = D2;

void setup() {
    
   // Configure the pins to be outputs
   pinMode(ledPin, OUTPUT);

   // Initialize the LED to be OFF
   digitalWrite(ledPin, LOW);
   
   //Register our Particle function here
   Particle.function("led", ledControl);
}


void loop() {

}


// Exercise 1
int ledControl(String command){
  
  int state = LOW;

  // find out the state of the led
  if(command == "HIGH"){
	   for(int i = 0; i < 3; i ++){
	       digitalWrite(ledPin, HIGH);
	       delay(1000);
	       digitalWrite(ledPin, LOW);
	       delay(1000);
	   }
  }else if(command == "LOW"){ 
	   state = LOW;
  }else{
	   return -1;
  }

  // write to the appropriate pin
  digitalWrite(ledPin, state);
  return 1;
}