ECO Liver Stick Fn-Key pad with GR-KURUMI, Serial Full Color LEDs (WS2812B), Strawberry Linux MPU-9250 (9-axis motion sensor module), and RL78G1C USB function.
[OVERVIEW] https://makershub.jp/make/1055
[VIDEO of its work] https://youtu.be/c7Bm2E2goss