geek crafts

How-To: Arduino Blinking Bike Patch

By Becky Stern Here I’ll show you how to add flashing LEDs to your backpack for fun and safety. I used a LilyPad Arduino with a rechargeable lithium-polymer battery for flatness and re-usability. The LEDs blink in a marquee pattern, two at a time, in patriotic red, white and blue. This project also appears as […]

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How-To: Musical Drawdio Puppet

By Angela Sheehan Conductive fabric/thread and a few electronic parts transform this seemingly ordinary plushie into a fun, playable instrument. This octopus jellyfish-inspired puppet lets you make different squeaky sounds using an embedded Drawdio. Hold the puppet by putting one hand in the loop on its belly. Use the other hand to touch conductive spots […]

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