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Clock knock block full of puns

This Clock Knock Block has a bit of everything; milling, Arduino, sensing, solenoids, and plenty of dirty puns. Just knock on the box or on the table right next to it and the time of day will be...

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Piecax the Poltergeist reinvents the Knock Block

[AndyGadget] built a haunted box as part of his Halloween preparations. This follows in the footsteps of the Knock Block we saw earlier this month but makes several hardware changes. He’s replaced the...

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Echo box shakes itself to make sound

The echo box performs exactly as its name implies. If you tap out a rhythm on the lid, it will tap the same thing back to you. Except it isn’t tapping to make the sound, but vibrating. The concept is...

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Wooden box repeats rhythm used when knocking on the lid

[Paul Mandel] just finished building this knock box project. It’s a familiar concept that uses a solenoid to tap on the side of the box. The Arduino driven setup monitors vibrations on the lid. When...

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