I bought an infrared motion detector unit on eBay for $1.50 and decided to put it to good use. I could have made my own motion detector board, but at $1.50 (which includes 2 trim pots for adjusting the sensitivity and shut off timer) it wouldn’t even be worth the time it would take to solder a home...By: steve.criss
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from Instructables: exploring - technology - robots http://ift.tt/15E1YN7
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