GPIO Expander For Raspberry Pi Pico, 1x Raspberry Pi Standard 40PIN, 1x Pico 2×20PIN $11.95 Waveshare 20477 - GPIO Expander For Raspberry Pi Pico, 1x Raspberry Pi Standard 40PIN, 1x Pico 2×20PIN - Pico-To-HAT Features Standard Raspberry Pi Pico female header for direct... Add to Cart