- Joined May 28, 2020
I am not any kind of engineer. I know you generally put a potentiometer before your amplifier board to add a volume knob to a project. I have this mp3 board that I am making into a white noise box to help someone sleep. It's working great. it just takes 5v usb input power and it's outputting to a 5v 3Ω speaker I salvaged from another project really well. sounds great.. However It had on board buttons for volume, track skip, etc.. it's not just an amplifier sound board. I want to add a volume knob potentiometer but have no idea where to solder that on. I don't prefer anything in line to the speakers as what it would have to handle could change at the board, right? someone bump an on board button or it loses it's stored values and resets to the volume it shipped at and that pot would be wrong or change since the post amp power would change.. or am i worrying too much about that?
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