Ep 314: It's Pi, but Also PCBs in Living Color and Ultrasonic Everything

'Twas the podcast before Christmas, and all through the house, the best hacks of the week are dancing around Elliot and Tom's heads like sugar-plums. Whatever that means. Before settling their brains in for a long winter's nap, they'll talk about the open source software podcast that now calls Hackaday home, the latest firmware developments for Google's Stadia controller, high-definition cat videos from space, and upgrades for the surprisingly old-school battery tech that powers the Toyota Prius. Out on the lawn, expect a clatter about the the state-of-the-art in DIY camera technology, the acoustic properties of hot chocolate, and a storage media from the 1990s that even Al Williams had never heard of. Finally, after tearing open the shutters and throwing up the sash, the episode wraps up with a discussion about wiring techniques that let you leave the soldering iron at home, and the newest chapter in the long history of transferring data via parachute. Miniature sleigh and eight tiny reindeer sold separately. Check out the links over on Hackaday.

22 Dec 20231h 9min

This week, Elliot sat down with Dan for the penultimate podcast of 2023, and what a week it was. We started with news about Voyager; at T+46 years from launch, any news tends to be bad, and the latest glitch has everyone worried. We also took a look at how close the OSIRIS-REx mission came to ending in disaster, all for want of consistent labels. Elliot was charmed by a Cthulhu-like musical instrument, while Dan took a shine to a spark gap transmitter that's probably on the FCC's naughty list. Any sufficiently advanced technology is indistinguishably from magic, and we looked at the laser made possible by the magician-in-chief himself, C.V. Raman. Why would you stuff a PSU full of iron filings? Probably for the same reason you'd print fake markings on a 6502 chip. We also took a look at the chemistry and history of superglue, a paper tape reader that could lop off your arm, and rocket gas stations in space. How about checking out the links over at Hackaday?  That's what we'd do.

15 Dec 20231h 3min

This week, Editor-in-Chief Elliot Williams and Kristina Panos met up to discuss the best hacks of the previous week. We have no nerdy news this week, but is that necessarily a bad thing? Speaking of nothingness, we have no winner for What's That Sound? because all six people who responded were wrong. Was the sound of Clippy too obscure? But then it's on to the hacks, beginning with an awesome autonomous excavator that, among other things, lays boulders algorithmically to build load-bearing walls without any mortar or cement. From there, it's old school meets new school in the form of a laser-cut fox-wedged mortise and tenon joint. We take a look at a couple of simple cameras, making dry ice from seashells, and a really tiny POV display where everything spins. Finally, we talk about how small that proposed Italian lunar outpost is, and discuss whether rating airlines would help stop the spread of diseases. Check out the links, and as always, tell us what you think about this episode in the comments!

9 Dec 202344min

It's the week after Thanksgiving (for some of us) and if you're sick of leftovers, you're in luck as Elliot and Dan get together to discuss the freshest and best inter-holiday hacks. We'll cue up the "Mission: Impossible" theme for a self-destructing flash drive with a surprising sense of self-preservation, listen in on ET only to find out it's just a meteor, and look for interesting things to do with an old 3D printer. We'll do a poking around a little in the basement at Tektronix, see how easy it is to spoof biometric security, and get into a love-hate relationship with both binary G-code and bowling balls with strings attached. What do you do with a box full of 18650s? Easy -- make a huge PCB to balance them the slow way. Is your cell phone causing a population crisis? Is art real or AI? And what the heck is a cannibal CME? Tune in as we dive into all this and more. Check out the links over at Hackaday if you want to follow along, and as always, tell us what you think about this episode in the comments!

1 Dec 20231h 17min

This week, Editor-in-Chief Elliot Williams and Managing Editor Tom Nardi link up through the magic of the Internet to go over some of their favorite stories from the last week. After revealing the bone-chilling winners of this year's Halloween contest, the discussion switches over to old-timey automatons, receiving deep space transmissions with a homebrew antenna that would make E.T. proud, and the treasures that can be found while poking around in a modern car's CAN bus. They'll also go over how NASA saved the taxpayers a bunch of money by hacking a remote controlled WWII tank, CNC controlled microscopes, and a cinema-quality camera you can probably build from what you've already got in the parts bin. Finally, they'll detail an ambitious effort to recreate an old computer's motherboard with a new feature in KiCad, and muse over all the interesting things that become possible once your test equipment can talk to your computer. Check out the links if you want to follow along, and as always, tell us what you think about this episode in the comments!

24 Nov 202359min

This week, Editor-in-Chief Elliot Williams and Kristina Panos met up to discuss the best hacks of the previous week, at least in our opinions. After chasing the angry bird away from Kristina's office, we go to the news and learn that we're in the middle of a solar conjunction Essentially, the Sun has come between Earth and Mars, making communication impossible for about another week. Did you know that this happens every two years? Then it's time for a new What's That Sound, and although Kristina had an interesting albeit somewhat prompted guess, she was, of course, wrong. And then it's on to the hacks, beginning with a really cool digital pen that packs all the sensors. We learned about the world's largest musical instrument, and compared it to the Zadar Sea Organ in Croatia, which if you'll recall was once a What's That Sound. From there we take a look at fake buck converters, radioactive water as a health fad, and a garage door company that has decided to take their ball and go home. Finally we talk about how slippery neutrinos are, and discuss Tom's time at JawnCon. Check out the links over on Hackaday if you want to follow along, and as always, tell us what you think about this episode in the comments!

17 Nov 202345min

With solder fumes from Supercon badge hacking still in the air, Hackaday's Elliot Williams and Al Williams met to compare notes about the conference talks, badge hacking, and more. Tom Nardi dropped by, too. Did you miss Supercon? It isn't quite the whole experience, but most of the talks are on our YouTube channel, with more coming in the weeks ahead. Check out the live tab for most of the ones up now. You can even watch the badge hacking celebration. Al nailed What's That Sound, as did many other people, including this week's winner. [Jacx] gets a T-shirt, and you get a chance to play again next week. The hacks this week range from a pair of posts pertaining to poop -- multi-color 3D printer poop, that is. We wondered if you could print rainbow filament instead of a purge tower. The Raspberry Pi 5 draws a lot of excess power when in standby. Turns out, thanks to the Internet, the easy fix for that is already in. Other hacks range from EMI test gear to portable antennas with excursions into AI, biomedical sensors, and retrocomputing. In the Can't Miss category, we discussed Maya Posch's post, which could just as easily be titled: Everything You Ever Wanted to Know about CAT Cable (But Were Afraid to Ask). Last, but not least, you'll hear about Lewin Day's round up of exotic gyroscope technology, including some very cool laser pictures. Check out the links over at Hackaday if you want to follow along, and as always, tell us what you think about this episode in the comments!

10 Nov 202344min

This week, Editor-in-Chief Elliot Williams and Kristina Panos met up from their separate but equally pin drop-quiet offices to discuss the best hacks of the previous week. Well, we liked these one, anyway. First up in the news, it's finally time for Supercon! So we'll see you there? If not, be sure to check out the talks as we live-stream them on our YouTube channel! Don't forget -- this is your last weekend to enter the 2023 Halloween Hackfest contest, which runs until 9 AM PDT on October 31st. Arduino are joining the fun this year and are offering some spooky treats in addition to the $150 DigiKey gift cards for the top three entrants. It's time for a new What's That Sound, and Kristina was able to stump Elliot with this one. She'll have to think of some more weirdo sounds, it seems. Then it's on to the hacks, beginning with an insanely complex mechanical central air data computer super-teardown from [Ken Shirriff]. We also learned that you can 3D-print springs and things by using a rod as your bed, and we learned whole lot about rolling your own electrolytic capacitors from someone who got to visit a factory. From there we take a look at a Commodore Datassette drive that sings barbershop, customizing printf, and a really cool dress made of Polymer-dispersed Liquid Crystal (PDLC) panels. Finally we talk about racing the beam when it comes to game graphics, and say goodbye to Kristina's series on USPS technology. Check out the links, and as always, tell us what you think about this episode in the comments!

27 Okt 202343min