Hello, I am building a small home cinema player using RPI 3B+ and HifiBerry AMP2. The software I am using is KODI. I would like to add a simple physical volume control by rotary encoder hooked to a Rspi GPIOs. Is it possible and how to do this? I am not shure if this question is HifiBerry or KODI related?
Regards
Lyubo
Hi,
it is neither HiFiBerry nor Kodi-related ;-)
you would need a software that checks the rotary encoder GPIOs and then controls the volume.
There are lot of sample programs, e.g. this:
https://gist.github.com/savetheclocktower/9b5f67c20f6c04e65ed88f2e594d43c1
However, you will need to adapt these to your specific installation.
Best regards,
Daniel
Thank you for the answer.
Incidentally, I've just made something that can directly talk to your ALSA mixer hardware: https://github.com/nettings/gpioctl
It's not available as packages, so you'd have to build it yourself, but it's documented. If you want to try it and run into problems, just open an issue here: https://github.com/nettings/gpioctl/issues.