The Raspberry Pi Pico is both faster and cheaper than the Arduino Nano, but the nano has better resources and community.

ViewSonic Expands Projector Family with New High Brightness Laser Projectors for ProAV Market and Portable Pico-Based LED Projector for Entertainment ...

The Raspberry Pi team has released the Pico, a $4 microcontroller that competes with Arduino.

Arduino enthusiasts, developers and makers may be interested in a new development board called the Pico which is being marketed as the world’s smallest Arduino 328PB Core and is now available to ...

The project is based upon the arduino-pico core, which supports a whole pile of RP2040-based boards, so you don’t need to restrict yourself to the “official” Pico-W, so long as you have ...