Wio-Link
Wio Link
https://www.seeedstudio.com/Wio-Link.html Shop
MCU ESP8266 I2C Port Pin 4 & Pin 5
Blue LED is the WiFi status indicator, Red LED indicates the working status Micro USB
https://github.com/Seeed-Studio/Wio_Link/wiki/Advanced-User-Guide
https://github.com/Seeed-Studio/Wio_Link/wiki
https://github.com/Seeed-Studio/Grove_Drivers_for_Wio/archive/master.zip