If you have ever seen Murder by Death (1976) or the "Billy Lipps" episode of Psych, you already know that a doorbell that screams can be very entertaining. Once you have the necessary materials, it should only take a couple of hours to configure your home's doorbell the same way, which is what you w...By: ChrisB3
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from Instructables: exploring - technology - robots http://ift.tt/1CHmNB3
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