Common Chemicals Combine To Make Metallic Sodium
There’s no debating that metallic sodium is exciting stuff, but getting your hands on some can be problematic, what with the need to ship it in …
Blink An LED On The Internet Of Things
Blinking an LED is generally considered the hardware equivalent of the classic “Hello World” project. It’s a quick and simple test to show that you’ve got …
The No-Parts Temperature Sensor In Your Arduino
Edward, creator of the Cave Pearl project, an underwater data logger, needed a way to measure temperature with a microcontroller. Normally, this problem is most easily …
The FAA Mandates External Registration Markings For Drones
Drone fliers in the USA must soon display their registration markings on the exterior of their craft, rather than as was previously acceptable, in accessible interior …
An ATtiny Metal Detector | Hackaday
A metal detector used to be an entirely analogue instrument, an oscillator whose frequency changed with the inductance of its sense coil when a piece of …
Hands-on: Hacker Hotel 2019 Badge Packs ESP32, E-Ink, and a Shared Heritage
When you go to a hacker conference, you always hope there’s going to be a hardware badge. This is an interactive piece of custom electronics that …
Playing Pokemon On A CRT Thanks to A Powerful Microcontroller
Microcontrollers come in a broad swathe of capabilities these days. There are the venerable 8-bit micros that have been around forever and valiantly crunch away, all …
Putting the Brakes on High-Frequency Trading with Physics
In the middle of the East Coast’s slow broil in the summer of 2018, a curious phenomenon surfaced. As a tropical air mass settled in and …
New Kinect Sensor Switch Focus From Gamers To Developers
Microsoft’s Kinect may not have found success as a gaming peripheral, but recognizing that a depth sensor is too cool to leave for dead, development continued …
Reverse Engineering Keeps Keck Telescopes on Track
Perched atop a dormant volcano far above the roiling tropical air of the Big Island of Hawai’i sit two of the largest optical telescopes in the …