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[Will] likes Reddit so much he built this dedicated controller that lets him play the social website like a video game. He calls it he Karma Controller. In this case, 'Karma' refers to ability to accumulate a large number of net up-votes on a Reddit post. The device features seven buttons which are all it takes to up and down vote, navigate up and down on the Reddit listings, toggle images, as … [Read more...]
Most 3D printers use stepper motors to control the movement of the extruder head. If you could actually print those motors it would be one more big step toward self-replicating hardware. Now obviously [Chris Hawkins'] working 3d printed stepper motor wasn't built 100% through 3D printing, but the majority of the parts were. All that he had to add was the electronic driver pieces, magnets, wire, … [Read more...]
Planning another Arduino build? If you're just doing something simple like switching a relay or powering a LED, you might want to think about the Digispark. It's a very small ATtiny-based Arduino compatible board developed and Kickstarted by [Erik]. The Digispark is based on the very popular Atmel ATtiny85, an 8 pin microcontroller that provides a quarter of the Flash storage and RAM as the … [Read more...]
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