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Looking around my styrofoam plate hovercraft for a place to mount a switch, I hit upon the battery clip itself. I thought of a bunch of projects — from breadboarding to BEAM robotics to Arduino — where a 9V battery clip with a built-in power switch could come in handy.... Read more »

Bring fun back to the flashlight with Arduino and full-color NeoPixel LEDs. Just twiddle the knobs and dial up any hue, saturation, and light level to create millions of colors — and 10 fun flashlight modes to play with. Read more »

Photos of items dropping into water (or other liquids) always have the potential to fascinate — the dramatic splashdown, the explosion of flying droplets frozen in time. They’re also increasingly seen in commercial images — look in your local supermarket and there’s a high probability you’ll find an image of... Read more »

Arduino Day Feature Image

Today is Arduino Day — a worldwide celebration of the Arduino’s birthday. If you can't make it to one of the official events, there are plenty of others organised by the community, so where are you heading today? Read more »

Alessandro Voto built a bass guitar whammy "bar" using a theremin-like instrument aid that gives audio feedback based on motion sensors. Read more »

A large 3D printed clock tower on display.

This past weekend, Goshen, Indiana played host to the third annual Midwest RepRap Fest (MRRF — pronounced “merf”). Goshen is also the home of SeeMeCNC, who organize MRRF — explaining why a world-class event like this takes place in such a remote location. SeeMeCNC’s hand in the event could not be more obvious than when... Read more »

TripodFlashlight_1

When I discovered my Stanley Tripod flashlight had a battery acid leak, it was, unfortunately, exactly when I needed a tripod flashlight the most — for fixing a leak under my sink. I went to my flashlight drawer and realized I already have plenty of flashlights, all I really needed was... Read more »