On the way to the mailbox, you might be expecting bills, birthday cards, perhaps a grocery store catalogue or two. [Steve] was like you, once – until an embedded computer showed up in the jun…

Git is one of those tools that is so simple to use, that you often don’t learn a lot of nuance to it. You wind up cloning a repository from the Internet and that’s about it. If you make…

It’s May, and you know what that means: we’re winding down from a worldwide celebration of the worker, pollen is everywhere, Hackaday readers in the southern hemisphere are somehow offe…

Poke around enough on AliExpress, Alibaba, and especially Taobao and you’ll come across some interesting things. The Long-CZ J8 is one of those. It’s just 2.67 inch long, and weighs just 0.63 ounce…

Electrospinning is the process of dispensing a polymer solution from a nozzle, then applying a very high voltage potential between the nozzle and a collector screen. The result is a very, very fine…

Hope springs eternal for Smell-O-Vision. [Niklas Roy] recently taught a workshop called Communication Devices at ÉCAL in Lausanne, Switzerland. Four of his Media & Interaction Design students bu...

If you want to get into electronics, it’s pretty straightforward: read up a little, buy a breadboard and some parts, and go to town. Getting into molecular biology as a hobby, however, presen…

It is easy to forget, but the Arduino does use C++. Typically, the C++ part is in the libraries and the framework and most people just tend to code their main programs using a C-style just using th…

No lab in almost any discipline was complete in the 70s and 80s without an X-Y plotter. The height of data acquisition chic, these simple devices were connected to almost anything that produced an …

We think of helping hands as those little alligator clips on a metal stand. They are cheap and fall over, so we tend to buy them and don't use them. However, if you are willing to put $35 or $40 into ...

Keyloggers are nasty little things that have the potential to steal the credit card numbers of you and everyone you care about. Usernames and passwords can be easily stolen this way, so they're a u...

Being a cop’s kid leaves you with a lot of vivid memories. My dad was a Connecticut State Trooper for over twenty years, and because of the small size of the state, he was essentially on duty…

Before there were samplers, romplers, Skrillex, FM synths, and all the other sounds that don’t fit into the trailer for the new Blade Runner movie, electronic music was simple. Voltage contro…

Last time I looked at a simple 16-bit RISC processor aimed at students. It needed a little help on documentation and had a missing file, but I managed to get it to simulate using a free online tool…

Stepper motors are a great solution for accurate motion control. You’ll see them on many 3D printer designs since they can precisely move each axis. Steppers find uses in many robotics projec…

Very rarely do we see a 3D printer that is more than just a refinement of what’s currently standard practice. [Prusa]’s single-hotend, four-color printer makes the list, but that came o…

A massive ransomware attack is currently under way. It was first widely reported having crippled the UK hospital system, but has since spread to numerous other systems throughout the world including F...

We’ve covered the Sonoff a few times–a very inexpensive box with an ESP8266, a power supply, and an AC relay along with a way to tap into a power cord. Very inexpensive means $5 or $6. …

Zaragoza, Spain hacklab La Remolacha (“The Beet”) sports a logo which responds to human interaction with a beet plant growing in the space. Sensors keep track of temperature as well as humidity f...

Writing code for embedded applications can be difficult. There are all sorts of problems you can run into - race conditions, conflicting peripherals, unexpected program flow - any of these can cause h...