I have been playing with the feather huzzah on several projects. One is controlling each of my garages. I am using the same signal used by the button in your garage to activate the opener. This one signal opens or closes the garage depending on what it did last. I may have been able to dig into the opener a bit more to find a better way to control it…but I went with this approach.
On my first version I used one board and setup two garage doors on it. can see below I used a four relay board to trigger openers signals. This worked ok. But if power were to go out the opener would activate. Not a great situation if we had a power outage in the middle of the night.
So, I decided to add open and closed switches. I used a relay featherwing instead of teh separate relay board. And I am splitting out the control to have one device per door.
I 3D printed switch brackets and an enclosure. And I laser cut the cover. I am pretty happy with the performance. One potential problem is if an open or closed switch malfunctions or becomes improperly adjusted…it can get hung up in a loop and constantly open and close the door. I will get back to squash that bug. I have one completed and will install the other two today.