In my instrument I have a bela send the line out into a bass woofer speaker powered by this amplifier module. I want to be able to power my instrument pressing only one button, but I am currently having 2 problems:
1 - The speakers generates a very annoying noise when powered by the same powerbank
2 - The barrel jack connector isn't recognized by any powerbank, only when I connect the amplifier into the same powerbank, then the bela start to boot
What I have tried to solve this problem:
I tried different powerbank with different sources of amperage (0.8 A , 1A and 2A), both share the same issue. I can only remove the loud noise when powering the amplifier into another powerbank
Is there an alternative to be able to power the bela and the amplifier by the same power source?