https://lastminuteengineers.com/ws2812b-arduino-tutorial/
https://docs.arduino.cc/learn/programming/sd-guide
https://github.com/TMRh20/TMRpcm/wiki
WAV files must be all uppercase, short names. 16-bit PCM mono
https://lastminuteengineers.com/ws2812b-arduino-tutorial/
https://docs.arduino.cc/learn/programming/sd-guide
https://github.com/TMRh20/TMRpcm/wiki
WAV files must be all uppercase, short names. 16-bit PCM mono