Thought I’d update this with my progress in case anyone else is looking. I got the connection writing and can connect 2 controllers. This was my method
Clean Retropie install
1. write reyropie image to sd card using pi filler
2. Expand file system
3. Update retropie setup script
4. Generic Bluetooth setup http://www.modmypi.com/blog/installing-the-raspberry-pi-nano-bluetooth-dongle
5. To get 2 ps3 controllers to connect wirelessly https://m.reddit.com/r/RetroPie/comments/2xgoz3/trouble_connecting_two_ps3_controllers_through/
I then paid controllers using the built in tool
One issue remains however in that the connection is intermittent, sometimes on boot up bluetooth won’t work, other times it will. Has anyone else encounterd this?
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