I was wondering what's the best way to support key matrix in moode.
I am talking about having many buttons wired in columns and rows instead feeding them the usual two wires to each of them...
I see many commercial receivers faceplates are wired this way when the button count gets bigger than a couple.
This way you can wire a lot of buttons with less wires/GPIOs.
![[Image: 4x3-Membrane-Keypad-Working.gif]](https://lastminuteengineers.com/wp-content/uploads/arduino/4x3-Membrane-Keypad-Working.gif)
And since many receivers usually have a board in the faceplate already wired this way, this makes it easy to use the stock hardware without any mods, plug and play.
I kinda hacked a few python scripts together and it kinda works for a while, then there's some debouncing issue that I still haven't tried to debug, but need to figure the source/licensing before posting it here.
Also while browsing yesterday I found this page, talking about using a device tree overlay instead of the python script in the userland.
Thinking if it could be useful in moode, could it be a better way?
https://blog.gegg.us/2017/08/a-matrix-ke...one-right/
I am talking about having many buttons wired in columns and rows instead feeding them the usual two wires to each of them...
I see many commercial receivers faceplates are wired this way when the button count gets bigger than a couple.
This way you can wire a lot of buttons with less wires/GPIOs.
And since many receivers usually have a board in the faceplate already wired this way, this makes it easy to use the stock hardware without any mods, plug and play.
I kinda hacked a few python scripts together and it kinda works for a while, then there's some debouncing issue that I still haven't tried to debug, but need to figure the source/licensing before posting it here.
Also while browsing yesterday I found this page, talking about using a device tree overlay instead of the python script in the userland.
Thinking if it could be useful in moode, could it be a better way?
https://blog.gegg.us/2017/08/a-matrix-ke...one-right/
