The Amp Hour Electronics Podcast

Petr Dvorak, a freelance PCB designer, discusses KiCad, git tools, transitioning to freelancing, and electron microscope advancements. He shares insights on client types, freelance regulations, and the importance of showcasing work. Petr's journey to freelancing, learning curves, and skill repetition are highlighted, along with tips on gaining clients through LinkedIn and building expertise in electronics.

Mistakes in house repair for partners Architectural Lighting Power quality Repairing a $4500 DAC Invisible computers Cal Newport on AI AI shortform USB C Spec Tester “50.0000 ohms” HDMI Layout guide (ADI) Bit Error Rate My voice is my passport Fake Dave Hackers War Games Captain Crunch no longer welcome at DEF CON Wifi (WLAN) Location API Polar Semi gets CHIPS act money

Welcome back, CNLohr! CNLohr was on the last episode talking about the CH32V003 part and the CH32V003fun library Charlieplexed errings Fast iteration Lohr-a…LoRa…get it? LoRa https://www.youtube.com/watch?v=eIdHBDSQHyw Started in January 2024 with discussions with mustardtiger / Frank Charles had done Wifi long range before Also FM from ATTINY85 Ethernet + AM Radio signals without radios USB Harmonics LolRa Upchirps / downchirps 903.825 – 903.975 mhz Michael Ossmann talk LoRa doesn’t do code matching JP Norair talking about LoRaWAN / DASH7 Tool / emulator for the airwaves 3 lines of the repo Tool to create tables There are two 2 lookup tables (up and downchirps) Table is different for differnet spreading factors and base frequencies Andreas Spiess LoRa/LoRaWAN distance attempts Spreading Factor — can’t past SF10 on this setup for unknown reason AirSpy Matt Knight LoRaWAN — protocol vs network The Things Network / Helium Activation by personalization Nesting dolls of encryption New parts CH32V002 (also, -005, -006. -007) Charles is excited about the op amp on the CH32V006 that has 64 MHz GBW CH32V203 – 144 MHz – $0.24, has usb xcvr CH32X035 is self clocking – best low cost option for USB All are supported in library now Community – CNLohr discord Porting examples for the parts using the technical reference manual MNIST database – handwriting recognition system Announcement post on CNX about the new parts It’s possible to hook up parts directly through the 1 pin SWIO, so you can hot-load firmware Writing code onto a “scratch pad” Want to see more CNLohr experiements online? Youtube.com/cnlohr discord: cnlohr reach out for invite Github

Expert inventor and YouTuber Colin Furze joins the show to discuss topics like Boeing's manufacturing issues, EV vs ICE vehicles, virtual power plants, TSMC challenges in the US, and energy-efficient semiconductor processes.

Uri and Robert Nelson discuss analog cochlear detectors, Voyager I, sustaining engineering, Bobiverse books, Chandra telescope, Embedded World, Z80 processor, Rabbit instruction set, Bluetooth technology, Sigrok, Zephyr LLEXT, and trade show dynamics

Chris will be at Embedded World 24 next week Bluetooth standard messages like HT, HR Early bluetooth devices (were terrible) WiBree (?) Sequans deal with Renesas fell apart There was a Sequans modem on the PyCom FiPy The low power ISM network Chris couldn’t remember was SigFox Synopsis acquired Ansys (back in January) Here comes the flood of Plugin Hybrids Dave’s sick car – 2010 Nissan dualis – Second channel New Espressif ESP32-P4 is getting ready to release Bitluni makes custom silicon (spoilers!) Past guest Pete Bevelaqua has a new Kickstarter where he’s passing power through a window (up to 30 mm thick) Top 10 Hobby Components (PartsBox) – submitted by former guest Jan Rychter Top 5 transistor video New BealgleBoard.org board isn’t in the BeagleBone form factor

Joining the podcast is Carl Bugeja, founder of Microbots, delving into PCB motors, soldering circuits, Flex PCB temperatures, driving circuits, and manufacturing challenges. The discussion covers actuation on a PCB, robotics projects, driver evaluations, Boston Dynamics references, remote electronics businesses, and the intricacies of PCB design and manufacturing processes. Exploring the balance between aesthetics and functionality, user testing, and the future of robotics applications.

Chris got a Chevy Bolt (2023 1LT) The model has since been discontinued 11 kW charging using a level 2 charger Flappy paddle to recapture battery (instead of the brake) Ioniq 5/6 Aptera Marques Brownlee reviews the Prius V2G is avaialble as a software upgrade to the Nissan Leaf 2nd channel abs bypass Microbit v2 Robot video with Huxley Software updates on a door handle Chris is playing around with 20V DeWalt batteries Battery fast charger schematic Bosch adapter Vmount batteries, as explained by Caleb of DSLR Video Shooter Sony batteries Dave’s tutorial on charging Chris might try out OnShape If you’re interested in helping model some battery stuff (or know someone who can), please email chrisgammell@golioth.io Sony battery lab hack

Pallav Aggarwal discusses learning the ch32v003, Ambiq Apollo, decision trees for hardware vs firmware, reducing complexity, AI tools for PCB creation, troubleshooting with tools like Joulescope and Saleae, and the importance of efficiency consulting in electronics projects.

From discussing smart home promises to tearing down a Braun toothbrush, this podcast covers it all. They dive into electronics testing, SPICE in CAD, quirky hardware store tales, and business setup challenges. The closure of DIYode mag and reflections on engineering software tools make for an engaging listen.