//Exercise 2-2

int led1 = D2;
int status = LOW;

void setup() {
    pinMode (led1, OUTPUT);
    pinMode(led2, OUTPUT);
    Particle.function ("LEDlLight 1", ledControl1);
    digitalWrite(led1, LOW);
}

void loop() {

}

//Cloud-based control
int ledControl1 (String command) {
    
    int i = command.toInt();
    
    for (i = 0; i <= command.toInt() * 2 - 1; i++){

        if (i % 2 == 0){
            status = HIGH;
            delay(500);     
            digitalWrite (led1, status);
        }else{
            status = LOW;
            delay(500);
            digitalWrite (led1, status);
        }
        
    }
    return i / 2;

}