Add a description, image, and links to the raspberry-pi-lcd topic page so that developers can more easily learn about it.

This is a port of Arduino to the RP2040 (Raspberry Pi Pico processor) and RP2350 (Raspberry Pi Pico 2 processor). It uses the bare Raspberry Pi Pico SDK and a custom GCC 14.2/Newlib 4.3 toolchain and ...

we’re not sure). And what could possibly make for a more self-referential joke than an Arduino shield…for Arduino?