Sonar-enabled Aquarium Controller

I've updated my aquarium controller project to incorporate a MaxSonar ultrasonic sensor to turn the lights on and off when someone is standing in front of the tank. You can read more about it on my blog, at http://imperfect.olbert.com/2010/08/05/it-can-see-or-maybe-hear/.

Cool! I'll keep this in mind if I ever get a fish tank again. :P

wow!