Here's a nice Instructable's project using an Arduino to sense a signal from a PIR sensor (the sensors you see in homes with alarms) and triggers a mini spy cam that you can get from ebay/Trademe for a few bucks. Fins out which of your cats likes peeing on your keyboard when you're out of build a home alarm system.

Full details in the PDF at the bottom of the page

William George commented on 15-Dec-2011 05:20 PM



