//Exercise 1
int ledPin = D3; 

void setup() 
{
    pinMode(ledPin, OUTPUT); 
    
    digitalWrite(ledPin, LOW); 
    
    //Register our Particle function here
    Particle.function("led", ledControl);
}    
    

void loop() 
{
    
  
}

//Exercise 1. Modify the cloud function to blink the LED 3 times after it is called
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(500);               
            digitalWrite(ledPin, LOW);   
            delay(500);
       }
	   state = HIGH;
   }else if(command == "LOW")
   { 
	   state = LOW;
   }else{
	   return -1;
   }

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