Fun walkthrough project video below using a photoresistor and the BBC micro:bit to determine the rotations per minute for fidget spinners. The code is viewable and downloadable here.

In this episode, we learn how to make and code a speed detector using a light dependent resistor and a bbc microbit.

Featured Adafruit Products!

BBC micro:bit Go Bundle: Designed specifically for kids and beginners, the micro:bit is a pocket-sized computer that you can code, customize and control to bring your digital ideas, games and apps to life. It’s a small, code-able device that is a non-intimidating introduction to programming and making – switch on, program it to do something fun – wear it, customize it, develop new ideas. Read more.