Hackaday Podcast · 16 Jul 2021 · 53m · Episode 127
Hackaday editors Mike Szczys and Elliot Williams review several hardware hacks, including a custom NFC antenna design by RevK using the PN532 chip, a 3D-printed whippletree clamp by Chris Borga, and a medical device sniffing project by James Wu. They also discuss a multimeter repair involving a crystal frequency mismatch and a Commodore 64 demo running on a floppy drive. The episode concludes with a discussion on the Audacity ownership saga involving Muse Group and grid restart technology.
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Dave Jones and Chris Gammell discuss the engineering behind a custom AirTag clone, detailing the challenges of fitting an nRF52840, NFC antenna, and sensors onto a 32mm single-sided PCB. They also analyze the causes of alkaline battery leakage, the mechanics of latched vs. unlatched continuity testers in multimeters, and the technical implications of Apple's new in-house modem silicon in the iPhone 16.
Dave Jones and Chris Gammell discuss the teardown of the Apple AirTag, analyzing its nRF52832 chip, U1 ultra-wideband transceiver, and asset-tracking architecture. They contrast this with Amazon's Sidewalk IoT network, the challenges of EV vehicle-to-load technology, and the complexities of repairing vintage surround sound receivers. The conversation also covers the acquisition of Supply Frame by Siemens, the lack of standardization in EDA library management, and the controversial acquisition of Audacity by Muse.
Hosts Dave Jones and Chris Gammell take calls from Trevor Sutherland, Todd, Sam, Arsenio, Chris Kessler, and William regarding power grid generators, surface wave transmission, multimeter troubleshooting, and product development advice. They diagnose SCR latch-up in a power sequencing circuit for Chris Kessler and discuss the challenges of measuring microamp currents for William's USB tester. The episode concludes with updates on Dave's EEVblog multimeter crowdfunding and upcoming travel plans.
Hosts Chris Gammell and Dave Jones discuss the recent Antares rocket explosion, the Hackaday Prize space trip controversy, and the passing of Tom Maglioli from Car Talk. They also cover U-beam's wireless charging technology, Dr. Greg Shaver's ultrasound chip startup, and DIY projects including a Tony Stark Halloween costume and reflow oven modifications.
Hosts Jen Castillo and Alvaro Prieto discuss their pandemic-era projects, including Alvaro's recreation of his father's 7400-series digital clock, a USB-C power adapter using a Cypress chip, and a t-shirt quilt. Jen details her reverse engineering of a greeting card chip, her exploration of Chinese manufacturing via Alibaba, and her choreography of a remote dance piece. They also cover the cancellation of hardware conferences like Hackaday Supercon and HackRF, and recommend movies such as 'Mood Indigo' and '3 Idiots'.
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