“In this project I will show you how a 3 IR distance sensor works and how we can use it to build a proper DIY tachometer that functions properly. Let’s get started!
Here you can find a parts list:
1x Arduino Pro Mini
1x IR Distance Sensor
1x 128x64 OLED
1x TP4056 Charge Protect Board
1x LiPo Battery
1x Toggle Switch”