Pairing a Bluetooth PS3 Controller to your RetroPie
The Bluetooth controller from the PlayStation 3 is a very popular controller to use, particularly for RetroPie. It works well with the RPi's onboard Bluetooth, once the respective driver package has been installed. I happened to have a PS3 that's been nothing but acting as a glorified Blu-Ray player, so I'm putting the wireless controller to good use. Frankly, I got it working over Bluetooth by accident. After reproducing my steps though, I can now instruct how it's done.