[Josh] is replacing the springs in his car's suspension. He wanted to know the travel rates of these springs, but apparently, this is a closely guarded trade secret in the industry. One company did ma...

Getting a project off the ground often means an up-front investment in parts. Hackaday is upping our efforts to smooth out that obstacle for those who want to Build Something That Matters. Seed fun...

Eager to get deeper into robotics after dipping my toe in the water with my BB-8 droid, I purchased a Raspberry Pi 3 Model B. The first step was to connect to it. But while it has built-in 802.11n w...

There is probably something in all of us that yearns to drive a tank, just once. Most of us will probably never fulfill it, in fact, unless we work in farming or construction we're unlikely to even dr...

Photochromic paint is pretty nifty – under exposure to light of the right wavelength, it’ll change colour. This gives it all kinds of applications for temporary displays.  [Jiri Zemanek…

The ESP32 is the latest and greatest wonderchip from Espressif. It’s a 32-bit, dual-core chip with WiFi, Bluetooth, and tons of peripherals such as CAN and Ethernet. For most of these periphe…

A denizen of the venerable XDA forums reports that it is possible to upgrade the RAM of the Nexus 5X from 2GB to 4GB.  Having suffered the dreaded bootloop, [Cathair2906] decided to send their phon…

If you even think about hacking with lasers, you’re going to hear about eye safety. “Be careful” they’ll say. “Don’t look into laser with remaining eye” is…

Following the time-honored YouTube tradition of ordering cheap stuff online and playing with it while the camera runs, [Monta Elkins] bought a Stirling engine that drives a DC motor used as a generato...

If you solemnly swear that you are up to no good, and you happen to spend most of your time in Manhattan below the mid-90s, then you will appreciate this Raspberry Pi-based Manhattan Marauder's Map.
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In the last episode, I advocated a little bit for Forth on microcontrollers being a still-viable development platform, not just for industry where it’s usually seen these days, but also for h…

Nintendo has discontinued a Classic gaming console. It's a pity, yes, but with the release of Nintendo's new gaming console, they probably have bigger fish to fry. That doesn't mean these discontinued...

Every week Hackaday.io features an AMA of sorts. This is the Hack Chat, a chatroom where we sit down with the best in the business to talk about manufacturing techniques, engineering, and how to buil...

Oh, for cryin' out loud. That's the last straw. We've seen one dangerous YouTube video too many. Are we honestly cursed with a false feedback system that unequitably rewards dangerous behavior in onli...

The Libre Space Foundation is an organization dedicated to the development of libre space hardware. It was born from the SatNOGS project — the winners of the first Hackaday Prize — and …

Well, think again. At least if you are using Chrome or Firefox. Don’t believe us? Well, check out Apple new website then, at . Notice anything? If you are not using an affected browser you ar…

If you’ve ever experimented with a robot gripper, you’ll know that while it is easy to make an analogue of the human ability to grip between thumb and forefinger, it is extremely diffic…

The ESP32 is Espressif's follow-up to their extraordinarily popular ESP8266 WiFi chip. It has a dual-core, 32-bit processor, WiFi, Bluetooth, ADCs, DACs, CAN, a Hall effect sensor, an Ethernet MAC, an...

Most of us have Ethernet in our homes today. The real backbones of the Internet though, use no wires at all. Optical fibers carry pulses of light across the land, under the sea, and if you’re…

There’s a lot of times in an average day when you’ll find yourself waiting. Waiting for your morning brew at the cafe, or for an email to show up — it’s often just a few min…