On 21 January 2021, the Raspberry Pi Foundation announced the Raspberry Pi Pico, a low-cost microcontroller. The Pico SDK Documentation describes the C API.
- SparkFun Pro Micro - RP2040 features USB-C and a Qwiic connector.
- Pimoroni PicoSystem has a display and small game system form-factor.
- Pimoroni Tiny 2040 is truly small, the size of a fingernail.