New to this and starting my first project but I’ve hit a problem.
I have a Pi 4 which I’m using with the Allo Kali, Piano 2.1 and Volt amp (plus a capacitance multiplier). I’ve set them up with Volumio and it all works in a stack but I want to put them all in a slim case and this means connecting the Pi via the GPIO pins with wires and dupont connectors. This also opens up the unused GPIO pins for connecting volume control and other buttons.
What i can’t work out is how to go about identifying the pins that I need to connect.
Searching online, I found one reference to pins 12,35,39,40 and 29 which I tried but the Kali also supplies power to the Pi and this combination does not appear to do that. I added pins 2 and 6 and this does light up the Pi but Volumio doesn’t boot with an under-voltage warning. I have thought about the wire itself being the problem, maybe too long or too thin, but I don’t know if that could cause a problem.
Is anyone able to help with how to identify the pins and what’s going on with the power.