Category Archives: hardware

SOICbite: A Program/Debug Connector for an SOIC Test Clip

The problem is well-known: programming and debug headers consume valuable board space and the connectors cost money. Especially troublesome are the ubiquitous 100-mil pin headers, not because they’re expensive, but because they’re huge, especially along the z-axis. If you’re building miniature devices, these things can take up a ridiculous amount …read more

Continue reading

Posted in connector hacks, debugging tools, hardware, SOICbite | Leave a comment

Captivating ESP32 Camera Hack

You can never have enough DIY devices at home, so when you look at an ESP32 module that comes with the camera, you automatically start getting ideas. [Daniel Padilla] wanted a way to deploy DIY camera modules without the hassle of configuring them so he made one that …read more

Continue reading

Posted in camera, ESP32, ESP32 camera, hardware, misc hacks | Leave a comment

Repurposed Plastic Protects PCBs

An errant wire snipping across the wrong electrical pins spells the release of your magic smoke. Even if you are lucky, stray parts are the root of boundless malfunctions from disruptive to deadly. [TheRainHarvester] shares his trick for covering an Arduino Nano with some scrap plastic most of us have …read more

Continue reading

Posted in case, cover, hardware, how-to, insulation, plastic, protection, recycle, resistant, reuse | Leave a comment

Tokyo Mechanical Keyboard Meetup Knocks our Clacks Off

Just a few days ago, on the other side of the planet from this author, there was a mechanical keyboard meetup in Tokyo. Fortunately through the magic of the Internet we can all enjoy the impressive collection of devices people brought, and boy were there some interesting specimens. There were …read more

Continue reading

Posted in hardware, japan, keyboard, keyboard matrix, keyboard switches, keycap sets, keycaps, meetup, tokyo | Leave a comment

Tearing Apart Pulse Transformer Switches

If you like mechanical keyboards, you like switches. Historically, switches were weird, with strange capacitive rubber dome switches in Topre boards, buckling springs in the IBM Model M, and beamsprings in earlier IBM keyboards. This teardown of an HP signal generator has the weirdest keyboard switches ever. They’re being called …read more

Continue reading

Posted in hardware, HP, HP 8660b, keyboard, mechanical keyboard, teardown | Leave a comment

A Full-Stack Web Browser

Interviewing to be a full-stack engineer is hard. It’s a lot harder than applying for a junior dev job where you’re asked to traverse a red-black tree on a whiteboard. For the full-stack job, they just give you a pile of 2N2222 transistors. (The first company wasn’t a great fit, …read more

Continue reading

Posted in 2019 Hackaday Prize, hardware, logic, rs232, The Hackaday Prize, ttl, vga | Leave a comment

Analog Failures on RF Product Cause Production Surprise

A factory is a machine. It takes a fixed set of inputs – circuit boards, plastic enclosures, optimism – and produces a fixed set of outputs in the form of assembled products. Sometimes it is comprised of real machines (see any recent video of a Tesla assembly line) but more …read more

Continue reading

Posted in bootloader, factory, fet, glitching, hackrf one, hardware, manufacturing, manufacturing problem, operator, pcb, pcba, reverse engineering, rom | Leave a comment

Open Hardware E-Ink Display Just Needs an Idea

Its taken awhile, but thanks to devices like the Amazon Kindle, the cost of e-ink displays are finally at the point where mere mortals such as us can actually start using them in our projects. Now we’ve just got to figure out how to utilize them properly. Sure you can …read more

Continue reading

Posted in bluetooth low energy, digital signage, e-ink, e-paper, hardware, nRF52840, wireless hacks | Leave a comment

Battle Tested Current Limiter for Cheap DC Motor Controllers

Running a brushed motor in muddy or dusty environments takes a toll on controllers, with both heavy back EMF and high stall currents. This explains one of the challenge in Europe’s Hacky Racer series, which is decidedly more off-road than America’s Power Racing Series.

In pushing these little electric vehicles …read more

Continue reading

Posted in brushed dc motor, current limiting, dc motor, dc motor controller, Hacky Racers, hardware, motor controller, transportation hacks | Leave a comment

Help Solve The Single-Transistor Latch Mystery

If you’ve spent any time on hackaday.io, you may have noticed that more than a few denizens of the site are fans of “alternative” electronic logic. Aiming to create digital circuits from such things as relays, vacuum tubes, discrete transistors, and occasionally diodes, they come up with designs that use …read more

Continue reading

Posted in avalanche, hardware, latch, negative resistance, single transistor, transistor | Leave a comment