The Pro series is probably stm32. However, we might be able to use some of that implementation for BT support. As a status update on this topic, SonixQMK now has support for most K* RGB boards ( excluding the K1 and K10, someone would have to give us a hand there with their wiring...
Keychron might be able to push out a firmware update to improve battery life, but considering the size of the battery on the Keychron K7 versus the Keychron K2, I wouldn’t expect any major jumps. Goodbye Magic Keyboard It’s a little bigger than the Apple Magic Keyboard, but the ...