const int LEDPIN0 = D0;

void setup() {
    pinMode(LEDPIN0, OUTPUT);
    
    //Making a Connected LED
    digitalWrite(LEDPIN0, LOW);
    
    Particle.function("led", ledControl);
}

void loop() {

}


//Making a Connected LED
//Ex.1
int ledControl(String command)
{
   for(int i = 0; i < 3; i++){
       digitalWrite(LEDPIN0, HIGH);
       delay(500);
       digitalWrite(LEDPIN0, LOW);
       delay(500);
   }
   return 1;
}