Ep 180: Tiny CRTs, Springy PCBs, and Measuring Trees

With Editor in Chief Mike Szczys off this week, Managing Editor Elliot Williams is joined by Staff Writer Dan Maloney to look over the hacks from the last week. If you've ever wondered how the Beatles sound on a floppy disk, wonder no more. Do you fear the coming robopocalypse? This noisy wall-climbing robot will put those fears to rest. We'll take a look at an undersea lab worthy of the Cousteau name, and finally we'll look inside a digital pregnancy test and wonder at its unusual power switch. Show notes: https://hackaday.com/?p=431146

11 Syys 202052min

Hackaday editors Mike Szczys and Elliot Williams ogle the greatest hacks from the past 168 hours. Did you know that Mars Rover didn't get launched into space all alone? Nestled in it's underbelly is a two-prop helicopter that's a fascinating study in engineering for a different world. Fingerprinting audio files isn't a special trick reserved for Shazam, you can do it just as easily with an ESP32. A flaw in the way Bluetooth COVID tracing frameworks chirp out their anonymized hashes means they're not as perfectly anonymized as planned. And you're going to love these cool ways to misuse items from those massive parts catalogs. Show notes: https://hackaday.com/?p=430419

3 Syys 202057min

Hackaday editors Elliot Williams and Mike Szczys check in on the best hacks from the past week. All the buzz is the algorithm that can reverse engineer your house keys from the way they sound going into the lock. Cardboard construction goes extreme with an RC car build that's beyond wizard-level. Speaking of junk builds, there's a CNC mill tipped on its side grinding out results worlds better than you expect from salvaged CD-ROM drives. And a starburst character display is a clever combination of laser cutting and alternative using UV-cured resin as a diffuser. Show notes: https://hackaday.com/?p=429459

28 Elo 202057min

Hackaday editors Mike Szczys and Tom Nardi chew the beef tallow as they take a tour through some of the best and most interesting articles from the past week, from kicking off another round of the popular Circuit Sculpture contest to building artisan coffee makers. We'll look at the engineering behind the post-apocalyptic face mask launcher of our nightmares, and stand in awe at the intersection of orbiting spacecraft and lawn emojis. Several tiny remote controlled vehicles will be discussed, and we'll take an unexpected look at how extruding plastic and aluminum might not be so different after all. Make sure to stick around until the end to learn why a little-known locomotive technology of the 1840s really sucked. Show notes: https://hackaday.com/?p=428104

20 Elo 202054min

Hackaday editors Elliot Williams and Mike Szczys flip through the index of great hacks. This week we learn of a co-existence attack on WiFi and Bluetooth radios called Spectra. The craftsmanship in a pneumatic drone is so awesome we don't care that it doesn't fly. Building a powerful TEA laser is partly a lesson in capacitor design. And join us in geeking out at the prospect of big rigs getting their juice from miles of overhead wires. Show notes: https://hackaday.com/?p=426831

14 Elo 202052min

Hackaday editors Mike Szczys and Elliot Williams gaze upon the most eye-popping projects from the past week. Who would have known that springy doorstops could be so artistic? Speaking of, what happens if you give everyone on the network the chance to collectively paint using pixels? There as better way to catch a rat, and a dubious way to lure mosquitoes. We scratch our heads at sending code to the arctic, and Elliot takes a deep look at the contact tracing apps developed and in use throughout Europe. Show notes: https://hackaday.com/?p=425629

7 Elo 202055min

Hackaday editors Elliot Williams and Mike Szczys go down the rabbit hole of hacky hacks. A talented group of radio amateurs have been recording and decoding the messages from Tianwen-1, the Mars probe launched by the Chinese National Space Administration on July 23rd. We don't know exactly how magnets work, but know they do a great job of protecting your plasma cutter. You can't beat the retro-chic look of a Commodore 64's menu system, even if it's tasked with something mundane like running a meat smoker. And take a walk with us down MP3's memory lane. Show notes: https://hackaday.com/?p=424793

31 Heinä 202057min

Hackaday editors Mike Szczys and Elliot Williams are deep in the hacks this week. What if making your own display matrix meant a microcontroller board for every pixel? That's the gist of this incredible neon display. There's a lot of dark art poured into the slivers of microSD cards and this week saw multiple hacks digging into the hidden test pads of these devices. You've heard of Folding@Home, but what about Minecraft@Home, the effort to find world seeds from screenshots. And when USB chargers have exposed and rewritable firmware, what could possibly go wrong? Show notes: https://hackaday.com/?p=423655

23 Heinä 202053min