I am wondering how the rotary volume control on the Volumio screen can be used to control the volume of an amplifier with a stepwise analogue control.
What would be required hardware and software wise to make this work
Volumio runs on a Raspberry which is connected to the Amp / DAC via USB
Volumio runs on a Raspberry Compute Module which is mounted inside the Amp / DAC and is connected to the DAC via I2S.
The goal is NOT to use the digital volume control of the DAC, but to use the processor in the Amp/DAC which controls the resistor network of the analogue volume control (taking its commands from an RC5 remote or from volume buttons on the front panel).
I am not the one building this. The developer is not fluent in English, so I am trying to be the translator.
Thanks a lot