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Take three NRF24L0+ radios, two Arduino Nanos, and a Raspberry Pi. Add a bored student and a dorm room at Rice University. What you get is the RRAD: Rice Ridiculously Automated Dorm. [Jordan Poles] built a modular system inspired by BRAD (the Berkeley…
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We have to be impressed by [amazingdiyprojects] who completely totaled their manned multi-copter build, which has been spanning over eight videos. He explained the crash in video number eight and is right back at it, learning from the recent mistakes.…
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Wolfgang Rupprecht's profile photoJacob David C. Cunningham's profile photoHagbart Celine (MethanGas)'s profile photo
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Still the idea of "let's make it bigger" or "multiply it because that makes sense" oh well, I guess they'll learn. It's like that "hoverboard" with like 8 ducted fans hahahaha
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University of Wisconsin-Madison is doing some really cool stuff with phototransistors. This is one of those developments that will subtly improve all our devices. Phototransistors are ubiquitous in our lives. It’s near impossible to walk anywhere without…
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Awesome for Wisco! Go Badgers! 
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[Voja Antonic] has built a clock that tells the time in binary with square waves, and trolls the uninitiated in electronics. The clock itself is very attractive. If you look closely you can see the circuitry backlit behind the dot LED matrix display. The…
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Darell Tan's profile photoHelio Machado's profile photo
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[JoergSprave] has done it again. His latest, most ridiculous weapon? A Gatling gun that fires crossbow bolts, using compressed air inside coke bottles — and an electric screwdriver. For those of you not aware, [Joerg] is our favorite eccentric German…
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Anders Björkman's profile photoSalim Safran's profile photoHelio Machado's profile photoArkadiy Kaminskiy's profile photo
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German quality.
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Direct-digital synthesis (DDS) is a sample-playback technique that is useful for adding a little bit of audio to your projects without additional hardware. Want your robot to say ouch when it bumps into a wall? Or to play a flute solo? Of course, you…
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It can be argued that MakerBot, a company that makes popular 3D printers, hit its pinnacle with the introduction of the Replicator 2. It was designed well and completely open source, including the motherboard that drove the printer – known as the…
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We’re well into the second week of the Hackaday and Adafruit ultimate team-up: The Raspberry Pi Zero Contest. The entries have been flying in! As of Thursday evening, we have 70 projects vying for one of 10 Raspberry Pi Zeros, and one of three $100 gift…
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The Apple IIc Plus is arguably – very arguably from my experience – the best Apple II computer ever made. It’s portable, faster than the IIe, had a much higher capacity built-in drive, and since the Plus could run at 4MHz, it was faster than the strange…
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Brushless DC motors, and their associated drive electronics, tend to be expensive and complicated. [Ottoragam] was looking for a cheaper alternative and built this Brushed DC motor servo controller and the results look pretty promising. Check out the…
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The common household wall wart is now under stricter regulation from the US Government. We can all testify to the waste heat produced by many cheap wall warts. Simply pick one at random in your house, and hold it; it will almost certainly be warm. This…
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Lewin Edwards's profile photoMichael McCandless's profile photoMatt Ballard (450nm)'s profile photoPeter Worden's profile photo
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Are any of these still simple transformer/full wave rectifier/cap (with optional linear regulator) any more? All the wall warts I've acquired in recent years have been switchmode.
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We’ve featured a lot of clock builds, but this one, as the title suggests, is frickin’ amazing. Talented art student [Kango Suzuki] built this Wooden Mechanical Clock (Google translation from Japanese) as a project while on his way to major in product…
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