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20 December 2010 @ 10:26 pm
Bathroom Lurker  
When i woke up Sunday morning i had a fun idea (morning == 1pm). I wanted to make a bathroom sign to let people know if the room was occupied or not. So i put together a Passive Infrared thing with an arduino thing and some LEDs and viola, the Bathroom Lurker (Dan named it).

Photobucket Photobucket

One module sits outside and notifies people. The other sits inside and watches for movement. Just incase i have guests who are silent and motionless poopers i made it watch for activity within the last 10-15 seconds before changing to unoccupied.

This was made in prep for the New Years Party. If you plan on attending, add music to the official list here.