Spark core firmware for simple publishing motion events

motion.ino

int sensorPin = D1;
int LED = D7;

void blink(int times) {
    for(int i=0;i<times;i++) {
        digitalWrite(LED, HIGH);
        delay(100);
        digitalWrite(LED, LOW); 
        delay(100);
    }
}

void setup()
{
     pinMode(sensorPin, INPUT);
     pinMode(LED, OUTPUT);
     digitalWrite(LED,LOW);
}

void loop()
{
    int motion = digitalRead(sensorPin);
    if ( motion == HIGH ) {
        blink(1);
        Spark.publish("motion");
        blink(3);
        delay(10000);
    }
}