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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...
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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...
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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...
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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:...
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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...
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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...
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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...
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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...
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Nixiewatch Looks Stylish In Aluminium
Nixie tubes are a perennial favorite, with their burnt orange glow bringing a smile to the face of even the most jaded maker. Due to their power requirements they’re usually seen in desktop clocks,...
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Persistence Of Vision On An Old Fan
Persistence of vision is a fun feature of the human visual system, which allows us to blink a bunch of spinning LEDs at the right time to spell out messages that appear to hang in the air....
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Control Your Web Browser Like It’s 1969
Imagine for a moment that you’ve been tasked with developing a device for interfacing with a global network of interconnected devices. Would you purposely design a spring-loaded dial that can do...
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Doing 10 Gigabit Networking At Home, The Cheap Way
For the vast majority of us, Gigabit Ethernet is more than enough for daily tasks. The occasional big network file transfer might drag a little, but it’s rare to fall short of bandwidth when you’re...
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Drone on Drone Warfare, With Jammers
After the alleged drone attacks on London Gatwick airport in 2018 we’ve been on the look out for effective countermeasures against these rogue drone operators. An interesting solution has been created...
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Reaction Trainer Keeps You On Your Toes
In many sports, it’s important for competitors to be light on their feet, and able to react quickly to external stimuli. It all helps with getting balls in goals, and many athletes undergo reaction...
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Tea Bot Solves Another First World Problem
In the movie Wall-E, future humans live in floating chairs and have everything done for them. Today, we grumble if we have to go to physically find a light switch or a remote control. How far away can...
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XFM: A 32-Voice Polyphonic FM Synthesizer On An FPGA
There’s something about Frequency Modulation (FM) synthesizer chips that appeals to a large audience. That’s one of the reasons behind [René Ceballos]’s XFM project, aiming to duplicate on an FPGA the...
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MQTT Deep Dive
If you read Hackaday, it is a good bit you’ve heard of MQTT — Message Queueing Telemetry Transport. If you’ve not used MQTT before, you should check out Ably’s [Kayla Matthews’] post entitled MQTT: A...
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3D Printer Meets CNC Router to Make Wood Prints
We’ve seen plenty of plywood 3D printers before; after all, many early hobbyist machines were made from laser-cut plywood. But this plywood 3D-printer isn’t made from plywood – it prints plywood....
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Neopixels Recreate Pinball Color Wheel That Never Was
With what pinball aficionados pay for the machines they so lovingly restore, it’s hard to imagine that these devices were once built to a price point. They had to make money, and whatever it took to...
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Deducing Stepper Motor Wiring
There are a lot of fun projects you can do with stepper motors salvaged from old printers or disk drives. However, it isn’t always clear how to connect to some strange motor with no markings or...
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