This project will show you how to make a wireless motion sensor using an FM transmitter that will send any sound up to a 100meters away when it detects motion and all you need is a FM radio to receive that signal.This is my first instructable! I hope you like it, I made it for the "protected" conte...By: Joey-co
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from Instructables: exploring - technology - robots http://ift.tt/1JvwQ1r
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