I am using a Pi3B+ with an IQAudio Digiamp plus. I have soldered on a couple of wires to the exposed back of pins on the Digiamp for on/off button and indicator lamp.
I would like to add more buttons for other controls to the unused pins but do not want to keep soldering more wires to more pins. Can I use some sort of break out board or adapter to get access to all pins? I am sure I am missing something really simple hear but I am a total beginner.