Button LED test for Wearable

buttontest.c

int buttonPin=D5;
int led1=D4;

// The code in setup() runs once when the device is powered on or reset. Used for setting up states, modes, etc
void setup() {
    // Tell b to get everything ready to go
    //pinMode(buttonPin, INPUT);
    pinMode(buttonPin, INPUT_PULLUP); 
    pinMode(led1, OUTPUT);
    digitalWrite(led1, HIGH);;
    delay(100);
    digitalWrite(led1, LOW);
}

/* loop(), in contrast to setup(), runs all the time. Over and over again. 
Remember this particularly if there are things you DON'T want to run a lot. Like Spark.publish() */
void loop() {
    if(digitalRead(buttonPin) == LOW){
        Particle.publish("button_status","true");
        digitalWrite(led1, HIGH);;
        delay(100);
        digitalWrite(led1, LOW);
    }
}