Recently [Andrew Conlin] wrote about how to use MicroZig with the Raspberry Pi RP2040 MCU, showing the process of writing an SSD1306 OLED display driver and running it.

Small I2C OLED displays are common nowadays, and thanks to the work of helpful developers, there are also a variety of graphics libraries for using them. Most of them work by using a RAM buffer, wh… ...

As we mentioned before, Sharma developed a custom PCB that works with a Raspberry Pi Pico 2, buttons, an SSD1306 OLED display, the DF Mini Player MP3 module, and a handful of WS2812B LEDs.