SC16IS752-micropython-library

Micropython library to connect WCMCU-752 2-UART Expansion board (SC16IS752) to ESP-32

My goal was to connect the third GM-60 Qr-code reader to ESP-32 which controls a club entrance. ESP-32 has only 2 UARTs so I bought the WCMCU-752 2-UART Expansion board from Aliexpress.

I didn't find a SC16IS752 library for Micropython, so I ported a suitable lib from C++. Only I2C communication has been ported, if you need SPI, you can easily add it yourself.

There is also a small script test_uart.py which allows to test the lib with GM-60 or any other device which transmits smth to UART.

How to connect stuff

• you need to wire the 1K resisor to 5V from one side and to GPIO 17 (ESP-32) and IRQ (WCMCU-752) pins from another side (it will look like a fork)