basic_blinky.ino

bool state = false;
int counter = 0;

 
void setup() {

    pinMode(D7, OUTPUT);

    digitalWrite(D7, HIGH);
    
    Serial.begin(9600);
}

void loop() {

    counter++;
    Serial.println("counter is " + String(counter));

    state = !state;
    digitalWrite(D7, (state) ? HIGH : LOW);
    delay(100);
    
    
    if (counter > 100) {
        Spark.publish("counter", String(counter));
        delay(1000);
    }
}