//Function Exercise 1

// name the pins
int ledPin = D2;

void setup() {

   //Register our Particle function here
   Particle.function("led", ledControl);
   
   // Configure the pins to be outputs
   pinMode(ledPin, OUTPUT);

   // Initialize both the LEDs to be OFF
   digitalWrite(ledPin, LOW);

}

void loop() {

}

int ledControl(String command)
{
   int state = LOW;

   // Make it blink!
   if(command == "BLINK"){
	  for (int i = 0; i<3; i++){
	      
	  digitalWrite(ledPin, HIGH);
	  delay(500);
	  digitalWrite(ledPin, LOW);
	  delay(500);}
 
   //other states
   }else if (command == "HIGH"){
   state = HIGH;
   }else if (command == "LOW"){
   state = LOW;
   
   }else{
	   return -1;
   }

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