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RetroPie 4: Adding an 8bitdo Bluetooth Contoller (August 2016)
Description
Overview adding 8bitdo controllers to RetroPie 4.
These popular Bluetooth controllers often have questions, and this video will show how to get them up and running with RetroPie.
In short, check out the hack option in the Bluetooth menu, if you have issues turn it off then re-add the controller in Emulation Station.
Wiki Guide:
https://github.com/retropie/retropie-setup/wiki/Setting-up-an-8bitdo-Bluetooth-controller
You can see the correct keycodes here:
https://github.com/libretro/retroarch-joypad-autoconfig/tree/master/udev