Submitted by Richard on Tue, 09/18/2012 - 12:49
Home automation and monitoring is a hobby of prokopyshen.com. Recently, we wanted to add monitoring to a replacement sump pump in our basement. Our Arduino based system monitors digital inputs on a real time basis every second, so I needed a simple on/off detection system for when the pump motor was drawing current.
The CR Magnetics CR9321-NPN Current Switch looked perfect for the job.
Read more for my review of this wonderfully simple to use device and how I connected to my Arduino.
