- Using microphone to capture beating more accurate. (only used accelerometer previously)
- Fine adjustment of various parameters.
- Added version restrictions for FreeRTOS.
- Because be confirmed that using FreeRTOS versions newer than 10.4.4-2 causes crashes due to memory usage issues.
- Change the dependency library for NeoPixel.
- for saving Flash & RAM usage.
- See: https://blog.ja-ke.tech/2019/06/02/neopixel-performance.html