Monthly Archives: May 2020

Homebrew Binaural Microphone Lets You Listen Like a Human

We humans may not have superpowers, but the sensor suite we have is still pretty impressive. We have binocular vision that autofocuses and can detect a single photon, skin studded with sensors for touch, heat, and pain, and a sense of smell that can detect chemicals down to the parts …read more

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Posted in balanced, binaural, digital audio hacks, electret, microphone, phantom power, pro audio, rc, shield, xlr | Leave a comment

The Descendants of Ancient Computers

Building computers from discrete components is a fairly common hobby project, but it used to be the only way to build a computer until integrated circuits came on the scene. If you’re living in the modern times, however, you can get a computer like this running easily enough, but if …read more

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Posted in bipolar junction transistor, bjt, computer, computer hacks, cray, discrete, frequency, parts, retro, supercomputer, switching, transistor | Leave a comment

Digitize An Analogue Oscilloscope

Many of us will possess digital oscilloscopes which offer at an affordable price an array of features once unimaginable on the analogue CRT ‘scopes of yesteryear. But those old analogue beasts were fine pieces of equipment when they were made and remain so today. So how can they find a …read more

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Posted in analog oscilloscope, oscilloscope, oscilloscope camera, python, qt, tool hacks | Leave a comment

A Tasty Output Device

We have headphones for your ears, and monitors for your eyes. Some computers even have tactile feedback. Now researchers have an output device for taste. The decidedly odd device uses five gels, one for each of the tastes humans can sense. If we understand the paper, the trick is that …read more

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Posted in misc hacks, peripherals hacks, taste, taste buds, umami | Leave a comment

Swap Your Microwave for a High Voltage Stereo

When building a new project, common wisdom suggests to avoid “reinventing the wheel”, or doing something simple from scratch that’s easily available already. However, if you can build a high-voltage wheel, so to speak, it might be fun just to see what happens. [Dan] decided to reinvent not the wheel, …read more

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Posted in audio, capacitor, danger, fire, high voltage, magnetron, microwave, science, speaker, vacuum tube | Leave a comment

Spacing Out; All the Orbital News You’re Missing

We keep finding more great space stories than we can cover, so here’s a speed-run through the broader picture of the moment as it applies to space flight.

The big news this week was the first launch of a manned SpaceX Crew Dragon capsule to the ISS. I was excited …read more

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Posted in Hackaday Columns, nasa, roundup, skyrora, space, SpaceX, Spacing Out | Leave a comment

Rolling Your Own LED Matrix Driver, With Copper Foil Tape to the Rescue

It all started when [Damien Walsh] got his hands on some surplus LED boards. Each panel contained 100 mini-PCBs hosting a single bright LED that were meant to be to be snapped apart as need. [Damien] had a much better idea: leave them in their 20×5 array and design a …read more

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Posted in 3d printed, copper tape, cree, diffuser, dot matrix LED, ESP32, IS32FL3738, led hacks, led matrix, surplus, wi-fi | Leave a comment

Job Application Script Automates The Boring Stuff With Python

Job hunting can certainly require a good amount of hoop-jumping in today’s age. Even if you’re lucky enough to have your application read by an actual human, there’s no guarantee the person on the other end has much of an understanding about your skill set. Oftentimes, the entire procedure is …read more

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Posted in careers, jobs, lifehacks, python, software hacks, web scraping | Leave a comment

Creating Surreal Short Films from Machine Learning

Ever since we first saw the nightmarish artwork produced by Google DeepDream and the ridiculous faux paintings produced from neural style transfer, we’ve been aware of the ways machine learning can be applied to visual art. With commercially available trained models and automated pipelines for generating images from relatively small …read more

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Posted in cnn, GANs, machine learning, neural style transfer, video hacks | Leave a comment

WiFi Goes Open

For most people, adding WiFi to a project means grabbing something like an ESP8266 or an ESP32. But if you are developing your own design on an FPGA, that means adding another package. If you are targeting Linux, the OpenWifi project has a good start at providing WiFi in Verilog. …read more

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Posted in fpga, linux hacks, openwifi, radio hacks, SoC, verilog, wifi, wireless hacks, xilinx | Leave a comment