int led = 13;//pin 13 as OUTPUT LED pin int resetPin = 3; // the setup routine runs once when you press reset: void setup() { digitalWrite(resetPin, LOW); delay(200); // initialize the digital pin as an output. pinMode(led, OUTPUT); pinMode(resetPin, OUTPUT); Serial.begin(9600);//initialize Serial Port Serial.println("reset");//print reset to know the program has been reset and //the setup function happened delay(200); } // the loop routine runs over and over again forever: void loop() { delay(10); digitalWrite(led, LOW); // turn the LED on (HIGH is the voltage level) Serial.println("on"); delay(1000); // wait for a second digitalWrite(led, HIGH); // turn the LED off by making the voltage LOW Serial.println("off"); delay(1000); // wait for a second Serial.println("resetting"); delay(10); digitalWrite(resetPin, HIGH); Serial.println("this never happens"); //this never happens because Arduino resets }