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sensor for the traffic light
Fei C
Fei C May 09, 2013
sensor for the traffic light

I've seen these sensors...

Often 2
Occasionally 1
Rarely 0
Never 0
What is it? 0
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Similar Photos: (top) A Bicing station; a close-up of a bicycle and parking slot; and a user at a station kiosk using RFID to check-out a bicycle; (bottom) The prototype consists of:an electronic trigger, conected to a camera on the handlebar of a Clear channel city bike (flickr.com/people/g<wbr/><span class="wbr"></span>cbb) Mobile tower in my city (Dhaka).

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