Secret Knock Detector

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• 14 years ago

• arduino
• based-door
• between-the-sound
• clever
• door
• fixed
• gaps
• gaps-between
• hoefer
• little-bit
• locked up
• matches-the-programmed
• never-use
• not a kludge
• programmed
• programmed-knock
• request
• security
• sound
• steve-hoefer
• the-door
• the-sound
• video
• your-request

• LoL @ Fixed

Steve Hoefer at Grathio labs shows off his Arduino based door opener, which responds to knocks on the door by timing the gaps between the sound bursts.

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