OpenSprinkler › Forums › Pictures and Creative Use › OpenSprinkler 2.1 Garage Door Opener › Reply To: OpenSprinkler 2.1 Garage Door Opener
May 27, 2015 at 12:37 pm #37998
1. From what I found documented on the board the answer is yes. LOW triggers the relay.
2. You know more than I do 🙂 I would assume you’re right since when I attempted to use an external power source (normal 5v DC cell phone charger) it failed. This lead me to using the internal USB power which was a cleaner look anyways.