We are doing a 2025 listener survey! Answer the survey and put in your email to win one of three Jumperless OG units donated by Kevin Cappuccio (past guest of the show) Note: this was corrected from the original, these are not v5 units, they are the original Jumperless units. Apologies for the confusion ~CG Chris signed on to get solar installed He…

Welcome back (for a third time!) Michael Gielda of Antmicro Michael and Chris usually see each other around the Zephyr booth at Embedded World, but not this year Antmicro continues to work on Zephyr, which targets hardware using Devicetree Renode Mult-node testing code aethero Data center in space Cosmic shielding corporation Tying the simulation t…

Meetup.com doubled their prices so the 3H Triangle group moved to Luma (same is true for SF, Seattle) Note taking apps after Evernote was gutted: Joplin, Obsidian Battery leakage in a DMM Causes of leak The PCB of a Tonie box with an SD card glued in place. Board has an ESP32-S3. (Product page) Design decisions – Latched / unlatched EEVblog video P…

Welcome Kevin Cappuccio, creator of the Jumperless Breadboard (v5 and before) Check out the Jumperless v5 on Crowd Supply OG Jumperless Video This update shows a bunch of images with the breadboard off 3M whitelabels their breadboards (because of the adhesive?) Breadboard spring clips Spring clips (in 3D) Elecrow 369 CH446Q, a clone of Zarlink MT88…

Tracking test equipment on one long homepage…the emporer of test equipment If you track it, it’s not hoarding…it’s curation Very specific piece of junk wood Garage Solar Amber allows you to sell power back in Australia at some wild rates Dave is trying out case design in OpenSCAD…it looks…ok Pebble is returning to the world after Google open source…

Welcome James Adams, Chris Boross, Liam Fraser, and Luke Wren! The last time the RPi team was on the show was about the RP1 (#648) The order of parts being released was RP2040->RP1->RP2350 Check out the datasheet for the RP2350 Learning from silicon Security and power states The part is a “Dual dual core” The Arm side is a Dual M33 The RISC V side …

Welcome, Stephen Hawes! Chris interviewed Stephen back in 2020 for his second episode of The Contextual Electronics Podcast. It was when Stephen was still working at Formlabs and the Lumen/Opulo were a glimmer in his eye. The Lumen v4 is a Benchtop Pick and Place machine that works with OpenPNP Where are we in relation to reprap? Powered feeders Vi…

Home assistant Homelab subreddit Solar assistant proxmox CarPlay / android auto NUCs Video Interview with Lee (since posted as #684 of TAH) 25K pound amplifier repair and associated EEVblog forum post Louis Rossman also talking about the copyright claim How the Fairlight CMI changed Music Read more here Synths / woodworking are hobbies that will ea…

A full 3 hour discussion with the legendary Lee Felsenstein, designer of the Osborne 1, SOL computer, VDM-1, Pennywhistle modem, and the inventor of social media. Covering everything from the Berkeley free speech movement, the counterculture movement, his career, through to Obsorne and how he invented social media with Community Memory. His book: h…

AI tools for helping with coding (but NOT layout, amirite) Troubleshooting as a skillset Stick meme Dave got an updated electrical box Home assistant Keith Burzinski episode (ESPhome) Toothbrush show Andreas Spiess discussing Bluetooth proxy Ian Scott Johnson DIY home automation Electrarc240 reviews every element of a linear power supply India powe…

Chris has been troubleshooting a PCB with a dead short on inner layers (put in by board house by mistake) Don’t Touch My Gerbers shirt “Is there an AI tool that will fix this for me?” … No Chris dumped a bunch of current in the board and looked at it with this thermal camera 6.5 digit DMM to track down shorts Etching problems in the old days 100% e…

Welcome Lukas Henkel of OV Tech GmbH, a product design firm based in Nuremburg Germany! Miniturization and the limits of miniturization Price is a constraint Using standard PCB tech (off the shelf) Open source SIP Steps Conventional pcbs / components Silicon inductors embedded in boards Bonded Bare dies / stacked Need volume to make it work Require…

Starship 5 landed on chopsticks! (you know, in case you have been offline for 2 weeks) Dave’s EV had a stuck cable Portable charger is surprisingly good CCS Charging standard Fast charge 36/50 kW MKBHD Chevy Silverado review JLC is now offering silkscreen QR codes to have individually marked boards That’s the board that Chris has been designing on …

Dan Esparon from Inovor Technologies in South Australia joins Dave to discuss all about the engineering of designing and launching satellites! Dan works for Inovor Technologies, an Australian company that designs and builds satellites entirely in-house! Recently they designed and launched the aussie Kanyini satellite on a SpaceX Falcon 9 rocket htt…

Welcome Katerina Galitskaya! Chris started following Katerina’s antenna posts on LinkedIn Monopole vs dipole Lower frequences are harder bc longer wavelength PCB size half of frequency Place antenta on the shorter side How to ruin your PCB When to go to a antenna engineer? Where will the device be? Antenna environment Start from vacuum, start addin…

Spam calls Keysight released the HD3, a 14 bit ADC oscilloscope (teardown video) Chris will be at Embedded World North America, please let him know if you’ll be there! Chris will be at the Joulescope stand along with former guest Matt Liberty This is one of the only tradeshows for general electronics in the US, Embedded Systems Conference went away…

Chris has been moving house, which partially explains the terrible audio problems the past few episodes… For a lab, Chris believes in Lots of wire shelving (with epoxy coating) Everything on wheels (including shelving and workbenches) As much storage as you can get Chris has been doing livestreams of hardware design for Golioth. The module he is de…

Welcome Shawn Hymel! Shawn will be transitioning out Developer Relations at Edge Impulse. He will now be building courses full time. (this was recorded before Shawn announced his departure) He want’s to be like a Professor, which partially explains his signature bowtie Should people go into content? What about Developer Relations more specifically?…

Murphy More efficient with cooled panels Battery storage solution Server rack batteries Chris has been doing hardware Livestreams Geofence n8n, Similar to Zapier, IFTTT Home assistant EE Grad wants some insight on new tech https://4dsystems.com.au/ Scott Williams of Xentronix recorded with Dave and then Chris Saw at Electronex My Cousin Vinny Embed…

Welcome, Matthias Balwierz / Bitluni / Luni! Midi pedals Old projects LED walls Dunning kruger Sonar scanner Aliens Romulus Lifelong learning Beamforming Previously had worked on something similar in the medical field but didn’t realize it was the same tech ESP32 Gowin FPGA Video generation / crt control R2R cnlohr videos for making PCBs ESP32 VGA …

Welcome back, Matt Venn of the Zero to Asic Course and Tiny Tapeout! (Due to illness and some life stuff happening, my recording setup was crap. Apologies. I also leaned heavily on Matt’s notes, so some of the following links will be out of order. Think of it like an ad hoc scavenger hunt…fun!) Matt was last on the show on episode 616, about 18 mon…

Sideshow Bob (simpsons) HERIC Inverter Review Fraunhofer HERIC inverter Dave’s video about the CH32V003 Charles episode Altium is increasing the price of their product (by 2x??) HITECH compiler from Microchip Newfound Warp13 Webrings, Blog roll, StumbleUpon Dontronics amazing siteBy The Amp Hour (Chris Gammell and David L Jones)

Check out the Circuit Break Podcast for show notes Parker Dillman Stephen Kraig James LewisBy The Amp Hour (Chris Gammell and David L Jones)

Welcome Petr Dvorak of Beny Devices A to Z book about KiCad fancygit lazygit gitlol Customer types Brno – 30% of electron microscopes What is changing in electron microscopes? Higher voltage, no noise Electrostatic steering Transitioning to freelancing Regulations for freelancer vs employer Petr is a prolific poster of electronics content on his Li…

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 Sem…