VertiGo Robot Drives Up Walls

This collaboration between ETH and the Disney empire’s research arm is a ultra-light robot that can roll across horizontal surfaces and also transition and climb walls. The robot has four wheels with one steerable set, but its secret sauce is the two propellers gimbaled on its back. Using these propellers it can…... [Continue...]
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3D Printed Electric Unicycle

Actually riding around at 30 km/h on a 3D printed means of transportation is pretty gnarly, if not foolhardy. So we were actually pleased when we dug deeper and discovered that [E-Mat]’s unicycle build is actually just a very nice cover and battery holder. We say “just”, but a 3D-printed…... [Continue...]
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Hackaday Prize Entry: Let Your Muscles Do The Work

Electromyography is a technique used to study and record the electrical signals generated when a muscle contracts. It’s used for medical diagnosis, rehab, kinesiological studies, and is the preferred method of control for robotic prosthetics and exoskeletons. There are a few companies out there with myoelectric products, and the use…... [Continue...]
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Encrypted USB Bootloader for AVRs

It probably doesn’t matter much for the hacker who sleeps with a bag of various microcontroller flash programmers under the pillow, but for an end-user to apply a firmware upgrade, convenience is king. These days that means using USB, and there are a few good AVR USB bootloaders out there.…... [Continue...]
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Retrotechtacular: The Modern Telephone

We take recorded telephone messages for granted in these days of smartphones and VOIP. Our voicemail lives on an anonymous server in a data centre in the cloud somewhere, in a flash memory chip on our DECT base station, or if we’re of a retro persuasion, on a micro-cassette. Wherever we…... [Continue...]
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BitCluster Brings a New Way to Snoop Through BitCoin Transactions

Mining the wealth of information in the BitCoin blockchain is nothing new, but BitCluster goes a long way to make sense of the information you’ll find there. The tool was released by Mathieu Lavoie and David Decarty-Hetu, PH.D. on Friday following their talk at HOPE XI. I greatly enjoyed sitting in…... [Continue...]
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Hacklet 117 – NFC Projects

Near Field Communication (NFC) is something we take for granted these days. Nearly all smartphones have it. We even have NFC interfaces for all our favorite development boards. NFC’s history goes back all the way to 1997, when an early version was used in Star Wars special edition toys. Radio…... [Continue...]
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Semisolid Lithium Ion Batteries Promise Better Cars, Solar

Lithium-ion batteries make possible smaller and lighter electronics. Unfortunately, they are also costly to produce. In a conventional lithium-ion battery, many thin layers create the finished product much like filo dough in baklava. A startup company called 24M thinks they have the answer to making less expensive lithium-ion batteries: a…... [Continue...]
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Manipulators get a 1000x FPGA-based speed bump

For humans, moving our arms and hands onto an object to pick it up is pretty easy; but for manipulators, it’s a different story. Once we’ve found the object we want our robot to pick up, we still need to plan a path from our robot hand to the object…... [Continue...]
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Liddiard Omnidirectional Wheels

Omnidirectional wheels are one of the hardy perennials of the world of invention. There seems to be something about the prospect of effortless parallel parking that sets the creative juices of backyard inventors flowing, and the result over the years have been a succession of impressively engineered ways to move…... [Continue...]
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Bluetooth and Arduino Vaporizer Upends Stoner Stereotypes

Back in the day, stoners were content to sit around, toke on a joint, mellow out, and listen to the Grateful Dead or something. Nowadays, they practically need a degree in electrical engineering just to get high. [Beiherhund] sent us his VapeBox build. Like so many projects on Hackaday, we’re…... [Continue...]
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Inverter crystal oscillator

Vasily Ivanenko writes: In numerous RF synthesizer chips lies an inverter with input and output pins for making a reference crystal oscillator clock. I built some discrete chip inverter xtal oscillators with 74HC series logic gates to better examine them. You’ll quickly recognize the oft-used Pierce oscillator topology with 1…... [Continue...]
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Hackaday Prize Entry: Piezo Gait Analysis

Go into a fancy drug store, and you might just find one of the most amazing sales demonstrations you’ll ever see. Step right up, take your shoes off, and place your feet onto the magical Dr. Scholl’s machine, and you’ll get a customized readout of how your feet touch the ground. As…... [Continue...]
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Quad Serial Adapter

Despite concerted efforts to kill them, serial ports are alive and well, especially in embedded system. True, most of them end in a USB port, these days, but there’s still a lot of gear with a DE-9 (it isn’t a DB-9, despite the common use of the word) or a…... [Continue...]
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Super In-Depth $15 Curve Tracer Project

[Jason Jones] has always wanted a curve tracer for his home shop. When he was starting out in electronics he fell in love with a machine called a Huntron Tracker 2000. This machine would feed a sine wave into a circuit on one side and plot a XY graph on the…... [Continue...]
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One Man Spends 53 Years And Builds A Cathedral

Is it a hack? We think it’s definitely a hack. It’s just a hack that’s so grand and audacious it’s hard to even think of it as a hack. [Don Justo Martinez] single-handedly (aside from the help of an occasional nephew, which doesn’t count) built a Cathedral over 53 years in Madrid Spain.…... [Continue...]
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ROM Disk Creation with ROM-inator II

Good news, ROM-heads! The software needed for ROM-inator II programming is now available for Mac OSX as well as Windows, and I’m marking the occasion with this step-by-step guide for creating your own bootable ROM disk. Here’s what you’ll need in order to get started: Hardware ROM-inator II programmable ROM…... [Continue...]
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Fail of the Week: Ferrofluid

It’s more of a half-fail than a full fail, but [Basti] is accustomed to getting things right (eventually) so it sticks in his craw that he wasn’t able to fully realize his ferrofluid dreams (German, translated here). Anyway, fail or demi-fail, the project is certainly a lesson in the reality…... [Continue...]
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Tote – Quadruped robot

Radomir Dopieralski has a nice build log on his quadruped robot – Tote: Tote is a small (fits inside your palm), four-legged, walking robot, with three degrees of freedom per leg, Arduino for its brains and controlled either with a TV remote, or by additional electronics added on top of it.…... [Continue...]
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