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

Hackaday editors Elliot Williams and Mike Szczys marvel at the dangerous projects on display this week, including glass etching with hydrofluoric acid and pumping 200,000 A into a 5,000 A fuse. A new board that turns the Raspberry Pi into an SDR shows off the power of the secondary memory interface (SMI) present in those Broadcom chips. We also discuss the potential for graphene in hard drives, and finish up with a teardown of a very early electronic metronome. You know you want to read the show notes!

25 Juni 202152min

Hackaday Editor in Chief Mike Szczys is taking a bit of vacation this week, so Managing Editor Elliot Williams is joined by Staff Writer Dan Maloney to talk about all the cool hacks and great articles that turned up this week. Things were busy, so there was plenty to choose from, but how would we not pick one that centers around strapping a jet engine to your back to rollerskate without all that pesky exercise? And what about a light bulb that plays Doom - with a little help, of course. We'll check out decals you can make yourself and why the custom keyboard crowd might want to learn that skill, learn about the other "first computer", and learn how a little radiation might be just what it takes to save an endangered species. You know you want to read the show notes!

18 Juni 202150min

Hackaday editors Elliot Williams and Mike Szczys marvel at the awesome hacks from the past week. We had way too much fun debated whether a wind-powered car can travel faster than the wind, and whether or not you can call that sailing. Low-temperature desoldering was demystified (it's the bismuth!) while a camera gimbal solves the problem of hand tremor during soldering. Ford just wants to become your PowerWall. And the results are in from NASA's mission to spin mice up in a centrifuge on the ISS. You know you want to read the show notes!

11 Juni 202153min

Hackaday editors Mike Szczys and Elliot Williams discuss a great week of hardware hacks. Two delightful mechanical hacks focus on bicycles: one that puts a differential on the front fork, and the other a flywheel between the knees. Elliot was finally impressed by something involving AI -- a machine-learning guitar pedal. You've heard of a delta bot? The tripteron is similar but with a single rail for the three arms. After a look at flip dots, tiny robots, and solar air planes we close the show geeking out about racing electric vehicles up a hill and stories of the hardware that has made closed captions possible. You know you want to read the show notes!

4 Juni 202148min

Hackaday editors Elliot Williams and Mike Szczys recount a week of awesome hacks. One you might have missed involves a Roku-based smart TV that was rooted and all secrets laid bare for the sole purpose of making an Ambilight setup work with it. We take a look at a creative blade-tracking system for a scrollsaw CNC project, and a robot arm that brings non-flat layers to 3D printing and envisions composite material printing. There's a great template for video glitching using inexpensive VGA to CGA converter boards, cleanly squeezed into a nice enclosure. We are a bit giddy for the omniwheel robot designs [James Bruton] has been showing off. And we finish out the show with a great conversation happening this week on Hackaday: people from throughout the community share how the chip shortage is affecting their projects. You know you want to read the show notes!

28 Maj 202150min

Hackaday editors Mike Szczys and Elliot Williams pick up on the neatest hacks you may have missed. We start off with another "What's that Sound?" so put your geeky-ears to the test and win a Hackaday Podcast T-shirt. Here are a couple of classic hacks to bring you joy: music based on Markov chains, and a squiggly take on the classic Nokia game of snake. For the more hardcore science geeks we dive into the B Meson news coming out of CERN's physics experiments. And after taking a detour in bristle-bot-based pen plotting, we unpack the hidden system of pipes that carry oil, gas, diesel, and more from the refinery to your region. Sidle on up to the show notes.

21 Maj 202150min

Hackaday editors Elliot Williams and Mike Szczys gather to ooh and aah over a week of interesting hacks. This week we're delighted to welcome special guest Kristina Panos to talk about the Inputs of Interest series she has been working on over the last couple of years. In the news is the effort to pwn the new Apple AirTags, with much success over the past week. We look at turning a screenless Wacom tablet into something more using a donor iPad, stare right into the heart of a dozen 555 die shots, and watch what happens when you only 3D print the infill and leave the perimeters out. Don't miss the show notes!

14 Maj 202158min

Hackaday editors Mike Szczys and Elliot Williams discuss the latest hacks from around the Internet. 3D-Printed linear rails don't sound like a recipe for a functional CNC machine but there was one this week that really surprised us. We were delighted by the procedurally generated music from a $0.03 microcontroller inside of an RCA plug (the clever flexible PCB may be the coolest part of that one). There's an interesting trick to reverse engineering Bluetooth comms of Android apps by running in a VM and echoing to WireShark. And we look at what the buzz is all about with genetically engineered mosquito experiments taking place down in the Florida Keys. New this week is a game of "What's that sound?". Use the form link on the show notes below to send in your answer, one winner will receive a podcast T-shirt. Check out the show notes!

7 Maj 202146min