It turns out that Shanghai is a very long way from my home in Wisconsin. I’ve traveled here for Electronica China, and although it made for an incredibly long travel “day”, it turned out to be quite enjoyable. I hacked some hardware on the plane ride, I took a maglev to my hotel, met up […]
The last few years have seen a rise of artistic PCBs. Whether these are one-off projects with a little graphic on the silkscreen or the art of manufacturing and supply chains, these fancy PCBs are here to stay. Nowhere is this more apparent than the loose confederation of Badgelife enthusiasts, a hardware collective dedicated to […]
The Compact Disc is 40 years old, and for those of us who remember its introduction it still has that sparkle of a high-tech item even as it slides into oblivion at the hands of streaming music services. There was a time when a rainbow motif was extremely futuristic. Bill Bertram (CC BY-SA 2.5) If […]
In the radio business, getting the high ground is key to covering as much territory from as few installations as possible. Anything that has a high profile, from a big municipal water tank to a roadside billboard to a remote hilltop, will likely be bristling with antennas, and different services compete for the best spots […]
There’s now an official Raspberry Pi keyboard and mouse. The mouse is a mouse clad in pink and white plastic, but the Pi keyboard has some stuff going for it. It’s small, which is what you want for a Pi keyboard, and it has a built-in USB hub. Even Apple got that idea right with the […]
Elliot Williams and Mike Szczys walk through the past week in hackerdom. There’s a new jargon quiz! Do you know what astrictive robotic prehension means? We look at the $50 Ham series, omni-wheeled pen plotting robots, a spectrum of LED hacks, LEGO CNC for chocolate rework, and grinding lenses with a CNC mill. In the […]
Last week , I covered the ridiculously low barriers to entry to amateur radio, both in terms of financial outlay and the process of studying for and passing the FCC examination. You’ve had seven days, so I assume that you’ve taken the plunge and are a freshly minted amateur radio operator. The next big question […]
The White House’s proposed budget for 2020 is out, and with it comes cuts to NASA. The most important item of note in the proposed budget is a delay of the Space Launch System, the SLS, a super-heavy lifting launch vehicle designed for single use. The proposed delay would defer work on the enhanced version […]
Knowing in what absolute direction your robot is pointed can be crucial, and expensive systems like those used by NASA on Mars are capable of calculating this six-dimensional heading vector to within around one degree RMS, but they are fairly expensive. If you want similar accuracy on a hacker budget, this paper shows you how […]