I can see an audio amp in your pic but it's un-used? It is... Since I am a beginner, I am working myself forward step by step. So I was getting from Display to Controls to Power/Battery and finally audio. Got the USB Audio working with the headphone... Wanted to add the Pot to control the volume. L...

Seems I killed my USB Controller on the Pi :( It did not recognize anything anymore. Desoldered all parts step by step... USB Audio, USB Hub... Still not recognizing anything connected to USB. Today I recieved a second pi... Same img working absolutly fine in there. USB is recognized. So soldering a...

Check the Wiki for the Leonardo Pro micro. It is based on arduino, so it should bei a good reference to what you are able to Do with an arduino nano.

Disconnected the potentiometer and Audio Jack from The usb Audio... Keyboard still not working...

Hi there First of all, this is my first post here. Reading for some time now and "extracting" all the info I need for my own/first GBZ. I am not much of an electronic guy... learing soldering and desoldering on the fly... But I already dropped a few evenings into this project. And now I am stuck... ...