I recently upgraded my T300 wheelbase to the Simagic Alpha Mini. I had a few custom made rims and the TM Open Wheel rim that I wanted to try to get working on the Simagic base, including all the buttons. After a few days of hardware exploring, learning about nRF24 & logic analyzers and packet disassembly I managed to figure out the important bits of the wireless protocol Simagic uses and make my rims work with the base directly.
I put all the info over at a github repository if someone else wants to do the same, or perhaps the opposite attaching a Simagic rim to another base :)
