The Raspberry Pi Pico HAT Expansion is an input/output expansion board designed for the Raspberry Pi Pico, which provides one set of 2x20 pin headers in the form of a Raspberry Pi Header along with one set of 2 x 20 pins. The board allows you to plug any* HAT designed for the 'Model B' Raspberry Pi with the Raspberry Pi Pico! Pin mapping is clearly labelled allowing you to determine the pin mapping from your Pico to your HAT, and the handy mount holes allow you to secure the board to a custom base or enclosure (or just pop some handy rubber feet on the bottom to keep it steady on a desk). Note: * Raspberry Pi Pico and HAT not included * Your Pico will need to have male headers soldered to it to fit into the board (or grab a pre-soldered Pico here) Pinout *Always check pin mapping compatibility first! The pinout diagram below shows the mapping from the Pico to the Raspberry Pi HAT format: https://elecena.pl/product/22720678/raspberry-pi-pico-hat-expansion 2023-03-07 https://elecena.pl/product/22720678/raspberry-pi-pico-hat-expansion 2023-12-27 https://elecena.pl/product/22720678/raspberry-pi-pico-hat-expansion 2024-09-19 https://elecena.pl/product/22720678/raspberry-pi-pico-hat-expansion 2024-11-29 https://elecena.pl/product/22720678/raspberry-pi-pico-hat-expansion 2024-11-30 https://elecena.pl/product/22720678/raspberry-pi-pico-hat-expansion 2025-11-28 https://elecena.pl/product/22720678/raspberry-pi-pico-hat-expansion 2025-11-29 https://elecena.pl/product/22720678/raspberry-pi-pico-hat-expansion 2026-03-11