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Hacking the doorbell

MAKE Magazine found this 8/21/2008 on rooreynolds.com

Posted by Roo - 14/05/08 at 08:05:33 am I bought a new doorbell. It actually came as a set, with two ringers. One is battery operated and the other is mains powered, plugging straight into the wall. I once again find myself attempting to keep up with Nick . Having seen his doorbell project I knew exactly what I had to do: it was time to hook my doorbell up to an Arduino board and put it on the ...