WIP
This firmware has been tested on the Lolin C3 Pico board. Other boards should also work without issues.
Please make two settings before uploading.
// TODO: Please enter the TFHub's mac address.
#define TF_HUB_MAC 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
// TODO: If you use both hands, please select left or right.
// Otherwise, leave as is.
#define LEFT_HAND
// #define RIGHT_HAND