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A CELEBRATION OF AMAZING CREATIONS AND THE PARTS THAT MADE THEM POSSIBLE.

MONKEY COUCH GUARDIAN

Give this toy a microcontroller “brain” so it can defend your stuff!

Microcontrollers are the tiny computers inside all kinds of electronic gadgets, and they’re surprisingly easy to use. The Arduino is an open-source microcontroller you can use to control everything from home heating systems to robots.

When MAKE’s editor-in-chief Mark Frauenfelder wanted a gadget to chase his pesky pets off his favorite couch, he programmed an Arduino to read a motion sensor and activate a motor in response — in this case, the motor of an old-fashioned cymbal-banging ...

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