relay

Prison Door System Built Using Only Timers and Relays

Prison Door System Built Using Only Timers and Relays

When the trustees of a southern prison insist that no microprocessors or transistors be used to create a new door and gate locking system, a young engineer springs into action with relays and timers.

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Raspberry Pi Christmas Light Controller

Raspberry Pi Christmas Light Controller

I jumped at the chance to to post this video since it combines a few of our favorite things: Christmas, Raspberry Pi, and Star Wars all rolled into one project. Posting under the name Chivalry Timbers, this maker created a MIDI-synced Christmas light display that uses the Raspberry Pi’s GPIO pins connected to solid state […]

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A Micro Relay at Work

A Micro Relay at Work

The fundamentals of switching in GIF format! See a 5V micro relay switch from normally-closed to normally-open and back to normally-closed.

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Monkey Hacking on Weekend Projects

Monkey Hacking on Weekend Projects

Turn a cymbal-banging monkey into a couch guardian to stop furballs from shedding on your favorite furniture.

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Twinkle Pad for Fairytale Fashion

Twinkle Pad for Fairytale Fashion

I am getting ready for my first NYC runway show, the Fairytale Fashion Show, on Feb. 24th at Eyebeam. Over the next couple of weeks, I will be writing about some of the preparations, on CRAFT and here at Make: Online. This show will be of the technology fashion collection developed at FairytaleFashion.org, where technology […]

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