Monthly Archives: April 2020

Giving Surfaces Their Own Antiviral Coating To Fight Infection

The use of disinfectants is not a new thing, but a major disadvantage with most common disinfectants is that they are only effective in the short term. After applying bleach, alcohol or other disinfectant to the surface, the disinfectant’s effect quickly fades as the liquid evaporates. Ideally the disinfectant would …read more

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Posted in antimicrobial, disinfectant, green hacks, hkust, map-1, news, science | Leave a comment

Ultrasonic Sound Gun Precisely Aims Your Music

When listening to music you sometimes cannot avoid the situation where other people get annoyed because they feel it disrupts their important doings or they do not share your taste in avant-garde doom metal. Of course one could just use headphones. But a hackier way would be to build a …read more

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Posted in digital audio hacks, directional speaker, portable audio hacks, sound gun, ultrasonic | Leave a comment

Classic 8-Bit Computing the Atari Way

In the classic gaming world, even before the NES arrived on the scene, there was no name more ubiquitous than Atari. Their famous 2600 console sold almost as many units as the Nintendo 64, but was released nearly 20 years prior. In many ways, despite making mistakes that led to …read more

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Posted in 2600, assembly, atari, basic, coding, Games, hardware, modifications, software, video game | Leave a comment

Make It Easier For Your Software Project to Accept Contributions

[Flameeyes] has heard complaints (and at times, he admits, has complained himself) about big companies not contributing improvements to projects they seem to find useful, or rolling their own implementation rather than use and contribute to an existing code base. Having recently left Google after seven years, he has some …read more

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Posted in code contribution, github, google, mit license, open source, OSI, software hacks, software license | Leave a comment

Giant Scale RC A350 Airliner Using Carbon Fibre And 3D Printing

Large scale RC aircraft are pleasure to see on the ground and in the air, but putting in the months of effort required to build them requires special dedication. Especially since there is a real possibility it could end up in pieces on the ground at some point.  [Ramy RC] …read more

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Posted in airliner, Carbon Fibre, drone hacks, EDF, Ramy RC, RC airplane | Leave a comment

Raspberry Pi Waters Your Lawn, Serves HTML

It is easy to take a Raspberry Pi and treat it like a cheap Linux PC or server. Running an ad blocker or a VPN gateway is simple and doesn’t require any real interfacing. However, it is a big leap to actually use the Pi to control something and a …read more

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Posted in lawn, Raspberry Pi, sprinkler | Leave a comment

Cheap Alternative Solvents for PCB Cleaning

If you’re in the habit of using isopropyl alcohol to clean your PCBs after soldering, you probably have a nice big jug of the stuff stashed away. If you don’t, you’re probably out of luck, since the COVID-19 pandemic has pretty much cleared IPA out of the retail market. But …read more

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Posted in acetone, aerosol, brake cleaner, cleaning, flux, flux removal, misc hacks, pcb, Solvent | Leave a comment

Modular Mouse Packs Features

Not only do console gamers complain about the use of a mouse, but PC users themselves often don’t have kind words to say even about some of the higher-end options. Granted, their gripes aren’t about game experience or balance, they’re usually about comfort, features, or longevity of the mice themselves. …read more

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Posted in 3d print, custom, hardware, modular, mouse, open source, software | Leave a comment

Beam Your Program to Another Computer

If you’ve programmed much in Linux or Unix, you’ve probably run into the fork system call. A call to fork causes your existing process — everything about it — to suddenly split into two complete copies. But they run on the same CPU. [Tristan Hume] had an idea. He wanted …read more

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Posted in cluster, fork, linux, software hacks | Leave a comment

A Flag-Waving Hat for All Occasions

When [Taste the Code] saw that his YouTube channel was approaching 1,000 subscribers, it was time to do something special. But celebration is no reason to be wasteful. This flag-waving celebratory hat has endless possibilities for the future.

The build is simple, which is just right for these strange times …read more

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Posted in 9G servo, arduino, Arduino Hacks, Arduino Uno, bamboo skewers, servo | Leave a comment