“Smilemachine” Helmet is a Delightful Mixture of Tech

Part performance art and part social experiment, [mocymo]’s Smilemachine V6 helmet is as delightful as it is expressive. The helmet is made primarily from laser-cut MDF assembled around parts from a safety helmet. The display is an Android tablet with fine operation controlled by a Bluetooth mini keyboard, and the helmet cleverly…... [Continue...]
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Amateur Radio Parity Act Passes US House

Most new houses are part of homeowners associations, covenants, or have other restrictions on the deed that dictate what color you can paint your house, the front door, or what type of mailbox is acceptable. For amateur radio operators, that means neighbors have the legal means to remove radio antennas,…... [Continue...]
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Grinding Gears: Figuring Out The Ratio

Practically any combination of motor and gearbox can be mathematically arranged to fit all sorts of problems. You could lift a crane with a pager motor, it just might take a few hundred years. However, figuring out exactly what ratio you need can feel bit backwards the first time you…... [Continue...]
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Real-Life Space Invaders with Drones and Lasers

We’ve seen a proliferation of real-life video game builds lately, but this one is a jaw-dropper! [Tomer Daniel] and his crew of twelve hackers, welders, and coders built a Space Invaders game for GeekCon 2016. [Tomer] et al spent more time on the project than the writeup, so you’re going…... [Continue...]
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Preparing Your Product For The FCC

At some point you’ve decided that you’re going to sell your wireless product (or any product with a clock that operates above 8kHz) in the United States. Good luck! You’re going to have to go through the FCC to get listed on the FCC OET EAS (Office of Engineering and Technology,…... [Continue...]
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New Part Day: A Truly Secure Workstation

There is a chain of trust in every modern computing device that starts with the code you write yourself, and extends backwards through whatever frameworks you’re using, whatever OS you’re using, whatever drivers you’re using, and ultimately whatever BIOS, UEFI, Secure Boot, or firmware you’re running. With an Intel processor,…... [Continue...]
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Real, Life-Sized Transformers

Ever dreamed of a real, life-sized Transformer in your garage? The Turkish startup Letrons now offers you exactly that: Their animatronic Autobot drives like a car, transforms like a Transformer, and supposedly fights off space threats with its built-in smoke machine and sound effects. Letrons’s Transformer seems to be built upon a BMW E92 coupé chassis.…... [Continue...]
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Hackaday Prize Entry: Text To Speech The Hard Way

Studies have shown reading to children leads to improved academic performance later in life, a trait that will make them more competitive in the workforce, and ultimately happier human beings. It follows, then, that having a robot read to children will also lead to happier and more productive adults, while…... [Continue...]
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A Robotic 808 Drum Machine

If you spent the 1980s hanging out at your local record store, and you don’t have a hankering for spandex and bouffant rock-god hairstyles, the chances are you’ll have more than a few pieces of electronic music from the period in your collection. The proliferation of electronica during that era came…... [Continue...]
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Hackaday Links: September 18, 2016

No Star Trek until May, 2017, at which time you’ll have to pay $5/month to watch it with ads. In the meantime, this is phenomenal and was shut down by Paramount and CBS last year ostensibly because Star Trek: Discovery will be based around the same events. Tempest in a teacup. That’s how you…... [Continue...]
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Spectrum Analyzer With 555 Fits In A Tin

[VK2ZAY] has a thing for 555 chips. Before the ready availability of microcontrollers, the 555 was the hardware hacker’s swiss army knife. After all, even though the chip is supposed to be a timer, it is really a bunch of simple pieces you can use to make a timer: a…... [Continue...]
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LVL1 Hackerspace Builds A DOOMcano

When you need a DOOMcano, there’s no real substitute. And they’re not just selling these things on the street-corner. Nope, friend, you’ve got to get the hackerspace together and build your own. For a fundraiser, and we suspect for the fun of it, the folks at LVL1 in Louisville, KY…... [Continue...]
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555 timer teardown: inside the world's most popular IC

This article is translated into Vietnamese at: Bên trong chíp định thời 555. If you’ve played around with electronic circuits, you probably know[1] the 555 timer integrated circuit, said to be the world’s best-selling integrated circuit with billions sold. Designed by analog IC wizard Hans Camenzind[2] in 1970, the 555…... [Continue...]
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Forge Your Own Neon Signs With EL Wire

Neon tube signs radiate an irresistible charm, which has been keeping them alive to this day. The vintage, orange glow is hard to substitute with modern means of illumination, but never trust a neon sign that you didn’t forge yourself. [NPoole] shows you how to build remarkably realistic faux neon…... [Continue...]
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Clustering A Lot Of Raspberry Pi Zeros

It became something of a cliché a few years ago in online discussions, whenever a new single board computer was mentioned someone would pop up and say something like “Imagine a Beowulf cluster…“. Back then it was said largely in jest, but with the current generation of boards it’s a…... [Continue...]
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Vacuum Exposure Unit Gives Better PCB Etching Results

PCB etching seems to be a subject that sharply divides our community into those who are experts in it and etch themselves every PCB they use, and those who have significant quantities of ferric chloride stained clothing in their past and for whom the advent of cheap commercial PCB manufacture…... [Continue...]
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High Impedance Headphones? They’re In The Can!

[George Trimble] likes to build crystal radios. The original crystal radio builders used high impedance headphones. In modern builds, you are as likely to include a powered amplifier to drive a speaker or normal headphones (which are usually around 4 to 16 ohms). [George] builds his own speakers using chile…... [Continue...]
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Chair Dances Like No One Is Watching

Although it might be more accurate to say that this chair dances because no one is watching, the result is still a clever project that [Igor], a maker-in-residence at the National Museum of Decorative Arts and Design in Norway, created recently. Blurring the lines between art, hack, and the ghosts from Super Mario, this…... [Continue...]
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