This tutorial will guide you through the process of building a tachometer around an Arduino. Tachometers are ... would have been to use a reflectance sensor which allows to for the transmitter ...

This tutorial from Instructable user ... you can download the specific code library for your sensor inside the Library ...

Olesen] have a tutorial for you! Here, you’ll learn the quick and easy way to get your sensor up and running, learn a few tricks for doing sleep Arduino environment, and even calculate how long ...