Control rotation and speed with Micro:bit

This video describes how a Micro:bit can control both rotation and speed of a regular motor. Along the way, both voltage sharing and transistors are studied. The experimental set-up is built on a wooden board, but can also be made on a breadboard. In addition to wood, brass nails, mounting wire, solder and tools, you must use:
A Micro:bit with batteries, a small motor, test cables, 5 pcs. 2.2 kΩ resistors, 1 pc. 3.3 kΩ resistor, 3 pcs. BC 547 or other NPN transistor, 2 pcs. BC 557 or other PNP transistor.

Link to voltage measuring program: https://makecode.microbit.org/_6jhXjsaXzKV0
Link to rotation and direction program: https://makecode.microbit.org/_2Rz709RPx62m
Link to the complete program: https://makecode.microbit.org/_JU0Feg9wJ31L

En dansk version af videoen kan findes her: https://www.youtube.com/watch?v=LQybs_mpeeU&feature=youtu.be

Playlist with my Micro:bit videos: https://www.youtube.com/playlist?list=PLbR_fbj5zxCKrIKIa910p3YSwlps5P7Kr

Видео Control rotation and speed with Micro:bit канала Gunnar Lund