Collaborate Disseminate
We know what you’re thinking: with so many wireless modules available for just pennies, trying to create a physical data link using ultrasonic transducers like [Damian Bonicatto] did for a …read more Continue reading Skip the Radio with This Software-Defined Ultrasound Data Link
How do you keep a few sodas in your classroom cool? Well, if you are teacher [Ethan Hunt], you have your students design and build a solid-state mini refrigerator that …read more Continue reading Peltier Mini Fridge for Class by Class
Like all Hackaday readers, we pride ourselves on having at least a passing acquaintance with how most things work. But we suspect to a lot of people, things we take …read more Continue reading How Does a Sewing Machine Sew?
Texas Instruments developed digital mirror devices, and the subsequent digital light processing (DLP) projector, starting in the late 1980s. The technology is a wondrous and fanciful application of micro-scale electronics …read more Continue reading Giant Demonstrator Explains How DLP Projectors Work
From where I am sitting, the earth is flat. The floor that runs the length of the unit my hackerspace sits in is flat, the concrete apron behind it on …read more Continue reading When Nearly Flat Isn’t Really Flat
Collectively, we have a long-term memory problem. Paper turns to mulch, dyes in optical disks degrade, iron oxides don’t last forever, and flash memories will eventually fade away. So what …read more Continue reading Forever Writing on Monofilament Fishing Line
If you’ve scavenged some random keypads and want to reuse them in a project without the hassle of figuring out the pinouts, then [Cliff Biffle] has an interface module for …read more Continue reading Keypad Interface Module Reverse Engineers Pinouts So You Don’t Have To
The warm and rather stinky heart of any hacker’s lair is the soldering station, where the PCB meets the metal (solder). A good soldering station lets you get on with …read more Continue reading Neat Soldering Station Design Has Workshop & Portable Versions
Despite a somewhat shaky start, it seems like everyone is finally embracing USB-C. Most gadgets have made the switch these days, and even Apple has (with some external persuasion) gotten …read more Continue reading Drop-In Upgrade PCB Brings USB-C to DualShock 4
[SpookyGhost] has a big home network, and has taken cable management and server organization to the extreme. He has written about individual components before, but this blog post brings it …read more Continue reading Home Network Organization Gets Out of Hand