- Heltec Wireless Stick Lite ESP32
- Seeed Xiao SAMD21
Lite <-> Xiao
SDA : 4 4
SCL : 15 5
- Flash I2C.ino to Xiao
- Run notebook I2C_MicroPython on Lite or I2C_Python on Raspberry Pi
- Lite or Raspberry Pi ask the length of a string first and then read the string