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March 20, 2011 AT 8:00 am

Otters in the refrigerator

Medium OtterBox plus an LPC1114 802.15.4 Transceiver

While there are definately no dead otters in my freezer (<confessions>a few choice duck parts may be  hidden in there somewhere</confession>), there are a few OtterBoxes.  While looking for ways to test out some new wireless sensor nodes to make sure that the deep sleep mode works as expected (so that the batteries last years instead of, well, hours) and just to make sure that the lights actually DO go off when I close the door on the fridge, I stuck a sensor node plus a digital luminosity sensor (a TSL2561 from TAOS to be specific, which approximates the human eye and measures both regular and infrared light levels), and used the LM75B I2C temperature sensor on the board to see just how chilly it really is (or isn’t) in there.  Inspired, no.  Safe and practical, yes.  You can read more about it here


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