Game Input MultipleXer

Thanks for the answer Matlo! That's the information I needed, I'll solder the included pins so I can use jumper wires. It's also possible to load a dfu bootloader firmware so that you'll only need the ISP once. Could you explain this a little further? How do I connect the ISP and is the dfu bootload...

Hey guys, I bought myself a little board with an ATmega32u4 chip on Amazon for flashing my Chromecast, I wanted to send it back since I don't need it afterwards anymore. But then I thought I could probably use it for other purposes and saw, that I could use it for a GIMX adapter. My question is, can...