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The Simplest Of Pseudo Random Number Generators
A truly random number is something that is surprisingly difficult to generate. A typical approach is to generate the required element of chance from a natural and unpredictable source, such as...
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Mowerbot Keeping The Lawn In Check Since 1998
Mowing the lawn is a chore that serves as an excellent character building excercise for a growing child. However, children are expensive and the maintenance requirements can be prohibitive. Many...
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Making Microfluidics Simpler With Shrinky Dinks
It’s as if the go-to analogy these days for anything technical is, “It’s like a series of tubes.” Explanations thus based work better for some things than others, and even when the comparison is apt...
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Radio Piracy on the High Seas: Commercial Demand for Taboo Music
The true story of pirate radio is a complicated fight over the airwaves. Maybe you have a picture in your mind of some kid in his mom’s basement playing records, but the pirate stations we are thinking...
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GPS Self-Adjusting Clock With An E-Ink Display
If you mention a clock that receives its time via radio, most people will think of one taking a long wave signal from a station such as WWVB, MSF, or DCF77. A more recent trend however has been for...
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Give Your Solar Garden Lights A Color Changing LED Upgrade
White LEDs were the technological breakthrough that changed the world of lighting, now they are everywhere. There’s no better sign of their cost-effective ubiquity than the dollar store solar garden...
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Prusa Launches Their Own 3D Model Repository
If you own a 3D printer, you’ve heard of Thingiverse. The MakerBot-operated site has been the de facto model repository for 3D printable models since the dawn of desktop 3D printing, but over the years...
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A DIY EMC Probe From Semi-Rigid Coax And An SDR
Do you have an EMC probe in your toolkit? Probably not, unless you’re in the business of electromagnetic compatibility testing or getting a product ready for the regulatory compliance process. Usually...
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A Tesla Coil From PCBs
While at the Hacker Hotel camp in the Netherlands back in February, our attention was diverted to an unusual project. [Niklas Fauth] had bought along a Tesla coil, but it was no ordinary Tesla coil....
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RFID Payment Ring Made from Dissolved Credit Card
RFID payment systems are one of those things that the community seems to be divided on. Some only see the technology as a potential security liability, and will go a far as to disable the RFID chip in...
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Charge All Your Batteries With USB PD
USB-C has been around for a while, and now that it can charge phones and Macbooks and Thinkpads, the hackers are starting to take note of power adapters that can supply lots of current. [Alex] was...
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Scientists Create Speech From Brain Signals
One of the things that makes us human is our ability to communicate. However, a stroke or other medical impairment can take that ability away without warning. Although Stephen Hawking managed to do...
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Raspberry Pi Becomes The Encrypted Password Keeper You Need
Unless you’re one of the cool people who uses the same password everywhere, you might be in need of a hardware device that keeps your usernames and passwords handy. The Passkeeper is a hardware...
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Resistance is Futile, You Want this LED Cube
We’re suckers for a good desk toy here at Hackaday, so this 2019 Hackaday Prize entry from [Jack Flynn] certainly caught our eye. The idea is that by using professionally manufactured dual layer PCBs...
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A Chandelier Guaranteed To Make Some Retro Game Hardware Collectors Wince
If there’s one thing our community is good at, it’s re-imagining redundant old hardware, particularly in the field of classic gaming consoles and their peripherals. Dead consoles have become new ones,...
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Making A Three Cent Microcontroller Useful
The Padauk PMS150C is a terrible microcontroller. There are only six pins, there’s only one kiloword of Flash, 64 bytes of RAM, and it doesn’t do multiplication. You can only write code to this chip...
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The No-CPU Computer Gets A C Compiler
C is the most perfect language and it will run on anything. It will even run on a computer without a CPU. The computer in question here is the Gigatron, a fully-functional ‘home computer’ the likes of...
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SNES Mode 7 Gets An HD Upgrade
Emulating SNES games hits us right in the nostalgic feels, but playing SNES games on an 1920×1080 monitor is a painful reminder of the limitations of SNES hardware. [DerKoun] felt the same...
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How Much Wood Can a Woodpecker Chuck?
It’s probably clear to a Hackaday reader that we live in a golden era for hobbyist tool accessibility. Cheap single board computers can be bought at any neighborhood RadioShack or Maplin. 3D printers...
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Magnets Versus Laundry Detergent
Soap cleans clothes better than magnets. There, we are spoiling the ending so don’t accuse us of clickbaiting. The funny thing is that folks believe this is plausible enough to ask magnets experts so...
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