Hackaday Podcast · 19 Feb 2021 · 55m · Episode 106
Hackaday editors Mike Szczys and Elliot Williams discuss a week of hardware hacks, including a 3D-printed wire connector design by Harvey Mudrunchka and a tuning fork clock by Chris Slyka. They analyze the Texas power grid failures caused by freezing natural gas infrastructure and wind turbines, and examine Tesla's recall of pre-2018 Model S vehicles due to eMMC flash memory wear-out from excessive logging. The episode also covers reverse-engineering an air quality meter with Ghidra, spinach-based photo prints, and the use of automotive bedliner to finish 3D prints.
makers and hobbyists
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Dave Jones and Chris Gammell discuss the challenges of hardware development, including Chris's experience with a Texas Instruments high-voltage motor control kit that failed due to missing power factor correction, and a SparkFun MicroView firmware recall. They also analyze the economics of crowdfunding 3D printers, the triboelectric noise in cables, and recent industry acquisitions like Infineon buying International Rectifier.
Hosts Carl and Corey revisit topics from their first 31 episodes, discussing the NXP acquisition of Freescale, MakerBot's layoffs, and Tesla's certified pre-owned program and Powerwall. They also analyze the John Deere firmware ownership controversy, the performance trade-offs of No-OS and Lua on microcontrollers, and the evolution of the Raspberry Pi. The episode highlights specific components like NXP current-sensing MOSFETs and the PCA8550 I2C dip switch, while addressing software bugs in Boeing 787 generator control units and the importance of checking simple parts like LDOs.
Dave Jones and Chris Gammell discuss recent tech hype, including debunking viral claims about the 'Water Cube' dehumidifier and beta-voltaic 'nuclear diamond' batteries. They cover the merger of Evil Mad Scientist and Bantam Tools, a side-channel security vulnerability affecting ESP32 microcontrollers, and the acquisition of a used TVM pick-and-place machine. The conversation also touches on power grid issues, CAD software choices like Fusion 360 and Onshape, and the failure of solar roadways.
Dave Jones of EEVblog and Chris Gammell of Contextual Electronics discuss the Blackmagic Design Video Assist ISO, analyzing its Xilinx Zynq FPGA and ARM processor architecture. They explore the financial and operational risks of product recalls, citing Jones's experience with a PCB thickness defect in his 121 GW multimeter and a massive field repair of seismic streamers caused by swelling rubber bands. The conversation also covers the Texas power grid failure, the closure of Fry's Electronics, and the Perseverance rover landing on Mars.
Dave Jones and Chris Gammell discuss a useless wrist-worn multimeter, the educational value of visual tools like Blender and quantum diamonds, and the pitfalls of camera review content. They detail Dave's struggles with a DI hybrid solar inverter's drifting internal clock and Chris's hack day project implementing a remote shell for Zephyr OS devices using Golioth. The conversation concludes with a comparison of Australian and US electrical systems and a lesson on hysteresis from a car's low-temperature warning.
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