Australian roboticists from the Queensland University of Technology have developed a prototype agricultural robot that uses machine vision to identify both weed and crop plants before either uproot…

Okay, we haven’t even hit Halloween yet, but if you’re planning some kind of holiday project, now’s a good time to start ordering your parts, especially if you’re designing …

Diablo. Mech Warrior. Every LucasArts game. There are reasons to build an old PC, and no, emulation cannot completely capture the experience of playing these old games. [Drygol] set out to create a re...

Once again, [Rulof]’s putting his considerable hacking abilities to good use, his good use that is. By modding a few simple parts he’s put together something that he can carry around on…

[Kedar Nimbalkar] hyperbolically advertises the ultimate cell phone speaker dock. It costs a dollar. It doesn't need you to pair with it via Bluetooth or WiFi. It pairs extremely fast, 0.000000000001...

[Florian] wants to browse the web like an internet cowboy from a cyberpunk novel. Unfortunately, VR controllers are great for games but really incapacitate a hand for typing. A new input method was ne...

In the late 1940s and early 1950s, Europe was still struggling to recover from the crippling after-effects of war. In Britain it is referred to as the “austerity period”, with food stil…

In case you missed it, the big news is that a minimal Arduino core is up and working on the ESP32. There’s still lots left to do, but the core functionality — GPIO, UART, SPI, I2C, and …

If you are a certain age, you probably remember writing software (or playing Adventure) bathed in an amber or green light from an old CRT terminal. If you are even older, you might have found it wa…

If you’ve ever fired a potato cannon, you’ll know that they are a raucous good time, but are somewhat clumsy to reload after each shot. Seeing an opportunity to improve on the design an…

Since the 1940s when the first transistor was created, transistors have evolved from ornery blocks of germanium wrangled into basic amplifiers into thousands and thousands of different devices made of...

If you have been off trick-or-treating and returned home with an embarassment of candy, what on earth can you do to mange the problem and sort it by brand? Yes, it’s an issue that so many of …

[Hari Waguna] wanted to build a computerized Sudoku game. Ordinarily, that wouldn't be a big deal. You can buy one, of course, but what fun is that? There's plenty of apps for phones, but again, not m...

Our hats off to [SpeedyCop] and his [Gang of Outlaws] for turning a junked former Vietnam War helicopter into both an amphibious vehicle and a road race car. Yes, that's right. It's both driven on wat...

LED matrix projects are all over the place, but this one is interesting for its simplicity: it's an LED matrix that is driven straight from an ESP8266 board. [Ray] put it together as a quick project f...

It's hard to make an audio mixer with any less technology than FingerRing (YouTube video, embedded below). We're pretty sure that [Sergey Kasich] isn't going to get a patent on this one. But what he d...

Whether it’s trying to make contacts across the planet with a transmitter that would have a hard time lighting an LED, or blasting signals into space and bouncing them off the moon, amateur r…

What’s the quickest way to turn one game into 2,400? Cram a Raspberry Pi Zero running RetroPie into an NES cartridge and call it Pi Cart. This elegant little build requires no soldering &#821…

With so many systems depending on Linux, the secure shell SSH has become a staple for many developers. If you are connected to your Raspberry Pi via a cable or a wireless router a few feet away, SS…

Researchers have built a prototype lithium-sulphur battery that -- when perfected -- could have up to five times the energy density of current lithium-ion devices. Researchers in the UK and China dre...