Examples to accompany the Get started with MicroPython on Raspberry Pi Pico book published by Raspberry Pi Trading, which forms part of the technical documentation in support of Raspberry Pi Pico and the MicroPython port to RP2040.
In chapter 10, we replace SerLCD with PCF8574 I2C. More details could be found in
- source code of RPI-PICO-I2C-LCD
- tutorial video