Category Archives: hardware

The Smallest Homebrewed TTL CPU In the World

The may very well be the smallest homemade TTL CPU we’ve ever seen. Measuring at one square inch, this tiny chip boasts 40 connections, an 8-bit databus, a 16-bit address bus, a 64 kB memory space, reset and clock inputs, and 5 V power lines.

TTL (transistor transistor logic) logic …read more

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Posted in 2019 Hackaday Prize, cpu, Hackaday Prize, hardware, Tech Hacks | Leave a comment

DIY Video Microscopy

Owning a Microscope is great fun as a hobby in general, but for hackers, it is a particularly useful instrument for assembly and inspection, now that we are building hardware with “grain of sand” sized components in our basements and garages. [voidnill] was given an Eduval 4 microscope by a …read more

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Posted in hardware, microscope, optical microscope, raspberry, Raspberry Pi, Raspberry pi camera | Leave a comment

Not All 7-Segment Displays Are Electronic

There are a variety of means by which numbers can be displayed from an electronic circuit, and probably the most ubiquitous remains the seven-segment display. Take seven LEDs, lamps, LCDs, VFD segments or mechanical flip-dot style units in the familiar rectangular figure eight, and your microcontroller or similar can display …read more

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Posted in 7-segment display, flipdot, hardware, mechanical display | Leave a comment

DIY MIDI Looper Controller Looks Fantastic!

Due to pedalboard size, complicated guitar pedals sometimes reduce the number of buttons to the bare minimum. Many of these pedals are capable of being controlled with an external MIDI controller, however, and necessity being the mother of invention and all, this is a great opportunity to build something and …read more

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Posted in arduino, arduino nano, hardware, midi, midi controller, musical hacks | Leave a comment

Dealing with Missing Pin Allocations

Blindsided by missing pin allocations? Perhaps you’re working on a piece of hardware and you notice that the documentation is entirely wrong. How can you get your device to work?

[Dani Eichhorn]’s troubles began when running an IoT workshop using a camera module. Prior to the work, no one had …read more

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Posted in hardware, pcb, pin allocation, reverse engineering, silkscreen | Leave a comment

Make Your Own Plasma Cutter

Of all the tools that exist, there aren’t many more futuristic than the plasma cutter, if a modern Star Wars cosplay if your idea of futuristic. That being said, plasma cutters are a powerful tool capable of making neat cuts through practically any material, and there are certainly worst ways …read more

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Posted in hardware, high voltage, metal, plasma cutter, tool hacks | Leave a comment

Solve Your Precision Woes With a Sliding Angle Grinder

Angle grinders are among the most useful tools for anyone who’s ever had to cut metal. They’re ergonomic, compact, and get the job done. Unfortunately, one of the tradeoffs you usually make when using them is precision.

But thankfully, there’s a DIY solution. YouTuber [workshop from scratch] demonstrated the build …read more

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Posted in angle grinder, hardware, how-to, metal, steel, welding | Leave a comment

Think IN18s Are Cool? Get a Load of This Must-Have Custom Nixie Tube

Us: “I’ll take Retro style displays we absolutely have to have for $200, Alex.”

Trebek: “This nixie tube is unlike any conventional tube you’ve seen before, handbuilt and NOT numbers or letters.”

Us: “What is FriendlyWire’s new logo tube?”

Trebek: “Heck yeah.”

Nixie tubes are the vacuum technology that manages …read more

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Posted in art, DIY nixie tube, hardware, home made nixie tube, nixie, nixie tube, nixie tubes | Leave a comment

The Price of Domestic Just In Time Manufacturing

Hardware is hard, manufacturing only happens in China, accurate pricing is a dark art. Facts which are Known To Be True. And all things which can be hard to conquer as an independent hardware company, especially if you want to subvert the tropes. You may have heard of [Spencer Wright] …read more

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Posted in Asia, bom, Centerline Labs, china, cogs, domestic, fm radio, hardware, manufacturing, mason jar, misc hacks, radio, supply chain, The Public Radio | Leave a comment

Smoothieboard Gets An Ambitious Update For V2

If you’ve been reading Hackaday for awhile, there’s an excellent chance you’ve seen a project or two powered by the Smoothieboard. The open source controller took Kickstarter by storm in 2013, promising to be the last word in CNC thanks to its powerful 32-bit ARM processor. Since then we’ve seen …read more

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Posted in 32-bit, 3d Printer hacks, cnc, cnc hacks, fpga, hardware, kickstarter, motion control, smoothieboard | Leave a comment