For years, Raspberry Pi has ... and GPIO layout as the original Pico, making it a seamless drop-in replacement. It's also as affordable, costing $5, only a dollar more than the Pico 1.
Interestingly, a Raspberry Pi 1 Model B+ will boot the Pi 2’s Raspbian image ... For hardware, everything you’d expect from the GPIO pins on the Raspberry Pi is present on the Raspberry ...