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LED strobe bar projects

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Knock-Detecting Door Alert with Strobe and Vibration Signals for the Hearing Impaired — project thumbnail preview
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Knock-Detecting Door Alert with Strobe and Vibration Signals for the Hearing Impaired

This project builds a door-knock alert for people who cannot hear a knock — particularly hearing-impaired users. A piezo sens...

ESP32 DevKit Arduino firmware 20x4 LCD
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