You can create a release to package software, along with release notes and links to binary files, for other people to use. Learn more about releases in our docs.

This Arduino based little digital tachometer was originally created for counting the speed of turntables and fidget spinners. There is another application to consider – a rear wheel tachometer for ...

The IR sensor detects a reflective surface once per rotation. Arduino measures the time between detections, calculates RPM, and displays it on the LCD. If RPM exceeds 3000, the buzzer sounds an alert.