void setup() pinMode(ledPin, OUTPUT);

– by Massimo Banzi and Michael Shiloh.

void setup() pinMode(13, OUTPUT);

Appnee.com.getting.started.with.arduino.4th.edi... ~upd~ -

void setup() pinMode(ledPin, OUTPUT);

– by Massimo Banzi and Michael Shiloh. AppNee.com.Getting.Started.With.Arduino.4th.Edi...

void setup() pinMode(13, OUTPUT);