Clint - there are a bunch, I got into them a bit more when I was playing with RPi high fidelity music players.? This was a couple of years ago.?
JustBoom has a nice one that fits on the PiZero form factor.? Looks like they still make it and some audio hats for the Pi3 and presumably 4:??They may have US vendors as well as UK.? I have a nice full size hat made by IOaudio.? Can't find a URL now.? HiFiBerry was another recommended vendor:??? The Pi3/4 hats may have pads or headers to extend the remaining GPIO pins for other uses.
73 Steve KS1G
