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First Look at DEF CON 26 Official Badge
To the delight of everyone, this year’s official DEF CON badge is an electronic badge chock full of entertainment. Of course there is blinky, the board is artistic, and everyone hopefully maybe gets...
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Python Resurrects Dot Matrix Printing
These days a printer — especially one at home — is likely to spray ink out of nozzles. It is getting harder to find home laser printers, and earlier printer technologies such as dot matrix are almost...
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High Tech Drone Scarecrows Can Make Airports Safer
If you pay attention to airplane news — or you watched the film Sully — you know planes have problems with birds. Sully was about US Airways flight 1549 which struck a flock of geese and ditched in...
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Circuit VR: Starting an Amplifier Design
Sometimes I wish FETs had become practical before bipolar transistors. A FET is a lot more like a tube and amplifies voltages. Bipolar transistors amplify current and that makes them a bit harder to...
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This Is The Year Of PCB Inductors
It’s a story we’ve told dozens of times already. The cost to manufacture a handful of circuit boards has fallen drastically over the last decade and a half, which has allowed some interesting...
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Ease Rover Development With These Self-Contained Track Units
Tracked drive systems are great, but implementation isn’t always easy. That’s what [nahueltaibo] found every time he tried to use open sourced track designs for his own rovers. The problem is that a...
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IBM PCjr Revived by an ATX Power Supply and Many False Starts
The IBM PCjr was a computer only the marketing geniuses of a multi-billion dollar corporation could love. On the face of it, it seemed like a great idea – a machine for the home market, meant to...
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Scanning Tunneling Microscope Packs the Bits
We don’t usually think of a microscope as an active instrument, but researchers in Canada have used a scanning tunneling microscope to remove or replace single hydrogen atoms from the surface of a...
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Teardown: Queercon 15 Badge (and the Game Hidden Within)
Queercon is a conference within a conference. Taking place within DEF CON, Queercon is a social network of LGBT hackers that gathers each year to host events, talks, and a kickin’ pool party. Since...
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Electrostatically Accelerated Ping-Pong Ball Travels the Circuit
There is a special breed of hardware hacker whose playground lies in the high voltage arena. Their bench sizzles with the ozone and plasma of Tesla coils, and perhaps it’s best not to approach it...
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Lily Power Pods Make the Seebeck Effect Look Good
Small proof of concept generating just under one volt in cloudy conditions. The Seebeck effect (part of the broader thermoelectric effect) is how a difference in temperature can be directly converted...
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Car Hacking at DEF CON 26
A great place to get your feet wet with the data-network-wonderland that is modern-day automobiles is the Car Hacking Village at DEF CON. I stopped by on Saturday afternoon to see what it was all about...
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Signal Generator Uses FPGA
Although there are a few exceptions, FPGAs are predominantly digital devices. However, many FPGA applications process analog data, so you often see an FPGA surrounded by analog and digital converters....
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Tariff Expansion Set to Hit 3D-Printing Right in the Filament
Mere weeks after tariffs were put into place raising the cost of many Chinese-sourced electronics components by 25%, a second round of tariffs is scheduled to begin that will deal yet another blow to...
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The Electric Vehicles Of Electromagnetic Field: The Dustbin 7
We’re producing an occasional series following some of the miniature electric vehicle builds currently underway at a feverish pace to be ready for the upcoming Electromagnetic Field hacker camp in the...
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Tiny Solar Energy Module (TSEM) Brings Big Performance
The Tiny Solar Energy Module (TSEM) by [Jasper Sikken] is not only physically tiny at one-inch square, but it is all about gathering tiny amounts of solar energy — amounts too small to be useful in a...
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Hackaday Links: August 12, 2018
Falling into the marvelous space between, ‘I really want to do that’ and ‘but that’s a lot of work and I’m lazy’ comes this reproduction of the motherboard from the original IBM 5150. This is a...
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The Ins and Outs of Geiger Counters, for Personal Reasons
There are times in one’s life when circumstances drive an intense interest in one specific topic, and we put our energy into devouring all the information we can on the subject. [The Current Source],...
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Behind The Pin: Logic Level Outputs
There is one thing that unites almost every computer and logic circuit commonly used in the hardware hacking and experimentation arena. No matter what its age, speed, or internal configuration,...
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DIY Wind Turbine for Where the Sun Doesn’t Shine
There are plenty of places outside where you may like to have a project requiring electricity that may not get enough sun for solar power to be viable. Perhaps wind power could be used instead? [Greg]...
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