The raspberry pi ‘pico’ went on sale/was launched on 21st January 2021
I had to solder two 30 pin headers so that the unit could sit on a breadboard or appropiate HAT
I started using a chromebook – which looking back was a bit of a mistake – it worked ok, as to load the initial firmware – but i quickly discovered there is no current way to load scripts onto the board.
The ‘official’ raspberry pi site guides you to install the bootloader/firmware for either
Micropython (this link will break over time – will not be the latest version)
MicroPython v1.13-290-g556ae7914 on 2021-01-21; Raspberry Pi Pico with RP2040
- C/C++
Adafruit has Pico support for circuitpython
Adafruit CircuitPython 6.2.0-beta.1 on 2021-01-27; Raspberry Pi Pico with rp2040
Pimoroni has its own port of Micropython
MicroPython f5d0ca0 on 2021-01-24; Raspberry Pi Pico with RP2040
Raspberry Pi Pico Python SDK – link
Getting Started with Raspberry Pi Pico – link and this
Github links
Pimoroni setting up Micropython – link