Hi! Thanks for your kind words. It's been fairly difficult to pack everything we needed on such small PCB indeed. However we made it with 4-layered PCB and of-t

Hi! Thanks for your kind words. It's been fairly difficult to pack everything we needed on such small PCB indeed. However we made it with 4-layered PCB and of-the-shelf BT module, IMU with gyroscope and accelerometer and other standard components.