Monthly Archives: July 2019

I Love the Smell of ABS Plastic in the Morning

One lesson we can learn from the Vietnam War documentary Apocalypse Now is that only crazy people like terrible smells just for fun. Surely Lt. Col. Kilgore would appreciate the smell of 3D printers as well, but for those among us who are a little less insane, we might want …read more

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Posted in 3d printer, 3d Printer hacks, electrostatic discharge, electrostatic precipitator, filter, fumes, health, high voltage, ozone | Leave a comment

Vacuum Sputtering with a Homemade Magnetron

“You can never be too rich or too thin,” the saying goes, and when it comes to coatings, it’s true that thinner is often better. The way to truly thin coatings, ones that are sometimes only a few atoms thick, is physical vapor deposition, or PVD, a technique where a …read more

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Posted in full bridge rectifier, high voltage MOT, magnetron, microwave oven transformer, misc hacks, plasma, sputtering, thin film, vapor deposition | Leave a comment

Gesture Controlled Doom

DOOM will forever be remembered as one of the founding games of the entire FPS genre. It also stands as a game which has long been a fertile ground for hackers and modders. [Nick Bild] decided to bring gesture control to iD’s classic shooter, courtesy of machine learning.

The setup …read more

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Posted in classic hacks, cnn, convolutional neural network, doom, Games, neural network | Leave a comment

High Precision Analog IO With Digital Pins

Reading the temperature of your environment is pretty easy right? A quick search suggests the utterly ubiquitous DHT11, which speaks a well documented protocol and has libraries for every conceivable microcontroller and platform. Plug that into your Arduino and boom, temperature (and humidity!) readings. But the simple solution doesn’t hit …read more

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Posted in adc resolution, analog, Arduino Hacks, hardware, Microcontrollers, sensing, temperature, thermistor, timer, timing, underwater sensor | Leave a comment

Make Your Own SPL DB Meter With A Microphone And MCU

Measuring equipment such as SPL (Sound Pressure Level) decibel meters may seem daunting, but this article by [Shawon M. Shahryiar] shows that making your own need only have two essential ingredients: a microphone and a microcontroller. Obviously the microphone is for measuring the sound pressure level, and its output is …read more

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Posted in decibel meter, how-to, Microcontrollers, pic18, spl | Leave a comment

Weather Station Can Rock You Like A Hurricane

People love to talk about the weather. It’s the perfect small talk, whether you’re trying to start a conversation or keep one going by avoiding an awkward silence. In the same fashion, weather stations are an ideal starting point for any sort of sensor-related project ideas. You get to familiarizing …read more

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Posted in arduino, bme280, environmental sensor, ESP8266, ldr, midi, musical hacks, Rain sensor, weather station | Leave a comment

Hydraulic Bench Vise a Masterpiece of Scrap Metal and Angle Grinding

For most of us, a vise is the sort of thing you clamp onto the edge of a workbench and crank down by hand. It might even be made of plastic, depending on the kind of work you find yourself doing with it. But it’s safe to say that [WorkshopFromScratch] …read more

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Posted in angle grinder, bench vise, hydraulic, metalworking, tool hacks, welding | Leave a comment

5G Power Usage Is Making Phones Overheat In Warm Weather

As reported by ExtremeTech, the brand new 5G network is running into a major snag with mobile devices as Qualcomm 5G modems literally cannot handle the heat. After just a few minutes of use they’re going into thermal shutdown and falling back to measly 4G data rates. Reports by both …read more

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Posted in 5g, Cellphone Hacks, mobile data, news, overheating, qualcomm, smartphones | Leave a comment

Making Instant Ramen a Bit More Instant

Instant ramen, the favoured repast of the impecunious would-be tech genius! It’s cheap, of dubious nutritional value, and it only takes a minute to cook. But what if you are in the creative Zone to the extent that five minutes to boil water is too much? For that you need …read more

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Posted in cooking hacks, food, noodles, ramen | Leave a comment

Hackaday Links: July 21, 2019

Ordering a PCB used to be a [Henry Ford]-esque experience: pick any color you like, as long as it’s green. We’ve come a long way in the “express yourself” space with PCBs, with slightly less than all the colors of the rainbow available, and some pretty nice silkscreening options to …read more

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Posted in Chemistry, clear coat, Hackaday Columns, Hackaday links, lathe, nightmare fuel, pcb, PLA, safety, silkscreen, urethane | Leave a comment