There are six wires: 3.3v power (soldered), ground (white terminal on gdo), door control (red terminal), obstruction detect (black terminal), rpm1 (soldered) & rpm2 (soldered).
You could leave out the 3.3v power if you wanted to power it from a USB brick.
The button and ratgdo are wired in parallel so it doens’t matter if you use the GDO terminals or the ratgdo terminals. ratgdo’s terminals are bigger and have a screw to tighten them so it will accept more wires, but either will work.
The white terminal on the GDO is ground. The dry contact side of the board is not needed at all if you are only using MQTT.
The commands are listed under triggers on this page. I will also add them to the quickstart so they are easier to find.
They are:
- open
- close
- light
That would be awesome!