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Okay, so a couple things here. First I'm not an expert electrician, so don't go hacking up the doorbell in your home based on this video. In fact, everything I know about doorbell circuits was learned through that home improvement show :) This was more of an experiment for me and really just for fun. Just whipped this up on my bench real quick out of curiosity and I'm making a lot of assumptions in this video about doorbells, but let me know what you think! I thought it was a cool way to use AC for both power and to read an input.
Oh and sorry about the hand drawn stuff. I was too much in a rush today to throw this into a nice simulator or anything.
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/ kdarrah
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