Fidget spinners are a thing these days. We have seen plenty of crazy ones in the past. Have you ever wondered how fast you can spin your little toy? Adafruit has shared a simple guide that shows you how to build a device to measure how fast you can spin.
You will need to use Circuit Playground’s light sensor to complete this project. The software for the project is an Arduino sketch. As the developer explains, you can also use Circuit Playground Express and CircuitPython to build a Python powered version of this.