Read speed & battery info from an EUC (ninebot one S2) and display it on ESP32 LCD

• ESP32 with display ( Supporting TTGO T-Display | M5StickC | LilyGo T-Watch )

• Ninebot ONE wheel .. currently supports A1/A2/S1/S2 (possibly Z10)

Auto connects to wheel on power up.

Info on original Ninebot ONE protocol:

[http://www.gorina.es/9BMetrics/protocol.html]

[http://www.gorina.es/9BMetrics/variables.html]

Ninebot S2 uses different service / characteristic

SERVICE - 6e400001-b5a3-f393-e0a9-e50e24dcca9e
WRITE - 6e400002-b5a3-f393-e0a9-e50e24dcca9e
READ - 6e400003-b5a3-f393-e0a9-e50e24dcca9e

0x11 instead of 0x09 in data packet position 3