via Hackaday: The 1983 Clock Four Decades in the Making
In 1983, a 14-year-old saw an LED clock in The Sharper Image store. At…
Category: General
via the ARRL: NCVEC Question Pool Committee Removes Two Pool Questions From Use
Read more at ARRL.org
via Amateur Radio Daily: Special Event Celebrates First Trans-Global Two-Way Radio Communication
To commemorate the centenary of this historic contact made by Goyder and Bell, Mill Hill…
via Hackaday: The FNIRSI HRM-10 Internal Resistance Meter
Occasionally, we find fun new electronic instruments in the wild and can’t resist sharing them…
via Hackaday: Experimenting with MicroPython on the Bus Pirate 5
I recently got one of the new RP2040-based Bus Pirate 5 (BP5), a multi-purpose interface…
via Hackaday: Tiny LoRa GPS Node Relies on ESP32
Sometimes you need to create a satellite navigation tracking device that communicates via a low-power…
via Hackaday: Zinc Creep and Electroplasticity: Why Arecibo Collapsed
It’s been nearly four years since the Arecibo Telescope collapsed, an event the world got…
via Hackaday: Amazon Receives FAA Approval for MK30 Delivery Drone
It’s been about a decade since Amazon began to fly its delivery drones, aiming to…
via Hackaday: Solve: An ESP32-Based Equation Solving Calculator
We’re suckers for good-looking old-school calculators, so this interesting numerical equation-solving calculator by caught…
via Hackaday: Turning a Quansheng Handheld Into A Neat Desktop Transceiver
The Quansheng UV-K5 is a popular handheld radio. It’s useful out of the box, but…
via Hackaday: PC Floppy Copy Protection: Vault Corporation Prolok
In the 2020s we’re used to software being readily accessible, and often free, whether as-in-beer…
via Hackaday: The Piezoelectric Glitching Attack
Many readers will be familiar with the idea of a glitching attack, introducing electrical noise…
via Hackaday: On the Nature of Electricity: Recreating the Early Experiments
Bits of material levitating against gravity, a stream of water deflected by invisible means, sparks…
via Hackaday: The Nixie Tube Multimeter That Almost Made a Comeback
In a world of digital monotony, the Avo DA14 digital multimeter, with its vintage J…
Starkville man ends reign as king of ham radio parts: ‘It was rough trying to say goodbye’ (Mississippi)
In 1972, Martin Jue was a young entrepreneur who decided to use his electrical engineering…
via Hackaday: Pulley System Makes Headphone Cables More Managable
It’s 2024. You’ve probably got one or more pairs of wireless headphones around the house….
via Hackaday: GPS Tracking in the Trackless Land
Need a weekend project? wanted a GPS tracker that would send data out via…
via Hackaday: Will .IO Domain Names Survive A Geopolitical Rearrangement?
The Domain Name System (DNS) is a major functional component of the modern Internet. We…
via Hackaday: Memristors Are Cool, Radiation-resistant Memristors Even Moreso
Space is a challenging environment for semiconductors, but researchers have shown that a specific type…
via Hackaday: Need High-Power Li-Ion Charging? How About 100 W
Ever want a seriously powerful PCB for charging a Li-Ion pack? Whatever you want it…
via Hackaday: Tech in Plain Sight: Zipper Bags
You probably think of them as “Ziploc” bags, but, technically, the generic term is zipper…
via Hackaday: Making A Split-Anode Magnetron
YouTuber The Science Furry has been attempting to make a split-anode magnetron and, after earlier failures, is having another crack…
via Hackaday: Save A Packet, Use Cheap Co-Ax!
Anyone who works with radio transmitters will know all about matching and impedance, and also…
via Hackaday: Silent Antenna Tuning
If you want to deliver the maximum power to a load — say from a…
via Hackaday: Using the 555 for Everything
The 555 timer is one of the most versatile integrated circuits available. It can generate…