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smart garbage bin, with a personalized RFID card.
Barbara P9
Barbara P9 May 08, 2013
smart garbage bin, with a personalized RFID card.

I've seen these sensors...

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Similar Photos: sensor for the traffic light with green light on the plate http://www.parallax.<wbr/><span class="wbr"></span>com/Store/Sensors/Al<wbr/><span class="wbr"></span>lSensors/tabid/760/C<wbr/><span class="wbr"></span>ategoryID/46/List/0/<wbr/><span class="wbr"></span>SortField/0/catpagei<wbr/><span class="wbr"></span>ndex/2/Level/a/Produ<wbr/><span class="wbr"></span>ctID/590/Default.asp Presence sensor used for reducing energy consumption of certain appliances.

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