Getting started
https://projects.raspberrypi.org/en/projects/getting-started-with-the-pico/0
https://www.youtube.com/watch?v=L03jT5slWnw
Pico en MicroPython https://www.youtube.com/watch?v=zlKJ5hvfs6s
Led laten knipperen met Thonny: https://www.youtube.com/watch?v=WD6-7J4ARzQ