Add remote control to adjust volume on DIY amplifier

[sim_tcr]

Hello,

I have a custom built stereo amplifier built with TPA3116D2 (more details here) and it serves my purpose.
What is the best way to add a remote control to it adjust the volume?

Thanks.

 

[mbhangui]

Hello,

I have a custom built stereo amplifier built with TPA3116D2 (more details here) and it serves my purpose.
What is the best way to add a remote control to it adjust the volume?

Thanks.

What is the source?
1. If it is a PC or laptop you can put an IR receiver and control the volume. I have done this for all my raspberry PIs
2. There are fully built remote control hardware that you can fit it in your amp cabinet - something like this https://theaudiocrafts.com/modules/...pga2311-based-volume-control-module-vcpga2311
3. The above two were IR based remote control. You can have a manual remote control with a long usb cable connected to your PC/laptop/raspberry Pi. Something like this https://www.amazon.in/Controller-Ad...cphy=9062116&hvtargid=pla-1678378279159&psc=1

 

[sim_tcr]

What is the source?
1. If it is a PC or laptop you can put an IR receiver and control the volume. I have done this for all my raspberry PIs
2. There are fully built remote control hardware that you can fit it in your amp cabinet - something like this https://theaudiocrafts.com/modules/...pga2311-based-volume-control-module-vcpga2311
3. The above two were IR based remote control. You can have a manual remote control with a long usb cable connected to your PC/laptop/raspberry Pi. Something like this https://www.amazon.in/Controller-Ad...cphy=9062116&hvtargid=pla-1678378279159&psc=1

Source is 1) raspberry pi running volumio 2) laptop (zoom meetings) 3) rapberry pi running android tv
All of them connected to selector switch (mechanical) so I choose input source using that switch.

I see what you are suggesting, adjust volume at source (via the remote control options you linked)

 

[mbhangui]

All of them connected to selector switch (mechanical) so I choose input source using that switch.

Then the most practical thing to do is to put the volume control mentioned in point 2 at the output of the selector switch. This volume control is hardware agnostic and the software is within the microcontroller. So you don't have anything to do other than wiring it to the output of your selector switch. Plus is that it has the famous Hitachi HD4470 2 line LCD display. The cost is on the higher side, but that's what you pay for a well made PCB. 1 and 3 are software based. 1 requires some knowledge of Linux. 3 requires a driver which may not work with Raspberry PI (may work with android, but your android is probably a hacked version by someone from xda forum. So I'm not sure)

So if you use the kit from theaudiocrafts, you will have to wire like this

The output of the selector switch goes to the input of the volume control.
The output of the volume control goes to your amplifier