#691 – System Designer Lets You Try Every Part with Michael Gielda

The Amp Hour Electronics Podcast

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הוסף לפני eight שנים

תוכן מסופק על ידי The Amp Hour (Chris Gammell and David L Jones), The Amp Hour (Chris Gammell, and David L Jones). כל תוכן הפודקאסטים כולל פרקים, גרפיקה ותיאורי פודקאסטים מועלים ומסופקים ישירות על ידי The Amp Hour (Chris Gammell and David L Jones), The Amp Hour (Chris Gammell, and David L Jones) או שותף פלטפורמת הפודקאסט שלהם. אם אתה מאמין שמישהו משתמש ביצירה שלך המוגנת בזכויות יוצרים ללא רשותך, אתה יכול לעקוב אחר התהליך המתואר כאן https://he.player.fm/legal.

Species Unite

1
Jeff Kerr: Our First Amendment Right to Receive Communications (from Monkeys) 30:14

לפני 3 ימים30:14

הפעל מאוחר יותר

רשימות

לייק

אהבתי

30:14

"It is a scientific fact that these macaques, like all other primates, including humans, are communicating. They communicate in much the same way we do - facial expressions, vocalizations, body postures, those kinds of things." - Jeff Kerr Jeff Kerr is PETA foundations Chief Legal Officer. I asked him to come on the show to talk about one of PETA’s current lawsuits against the National Institutes of Health (NIH) and Nathional Institute of Mental Health (NIMH). PETA is arguing that the monkeys being tested on in a government run facility are capable of communication (or “are communicating”). And that we have a constitutional right under the First Amendment to receive their communications. This could be a game changer in allowing us to see what’s really going on in labs that are funded by taxpayer money, and which have so far been censored from public view. PETA’s lawsuit follows years of NIH’s attempts to deny Freedom of Information requests banning PETA executives from its campus and illegally censoring animal advocates’ speech on NIH’s public social media pages. Through the lawsuit, PETA is seeking a live audio-visual feed to see and hear real-time communications from the macaques who have been kept isolated, used in fear experiments, and had posts cemented into their heads. Anthropologists and other scientists have studied macaque and other primate communications for decades and know that the monkeys communicate effectively and intentionally through lip smacking, fear grimaces, body language, and various cries and sounds—all of which constitute speech under the law. Primatologists can analyze that speech on a deeper level to share their stories with the world.…

לפני שנה 1:11:55

MP3•בית הפרקים

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 to reality
How do you know an actuation has happened
RESD – Renode sensor data format
Drone data example
Finding and testing the variety of use cases
Borderline criteria
Fuzzing
Kenning AutoML
Anomaly detection on an MCU with Kenning
Co-op example
Adding
System designer
Environment al board
Aerocore2 STM
Camera
Checking on the pin / assignment problem
Supporting vendors that have good support / open source
ADI plugins for Zephyr
Root of Trust Caliptra
Interested in Antmicro services and products? Check out offering.antmicro.com

57 פרקים

#Tech #The Amp Hour (Chris Gammell and David L Jones #The Amp Hour (Chris Gammell #Physics #Science #Natural Sciences #Podcasting Education #David Jones

#691 – System Designer Lets You Try Every Part with Michael Gielda

The Amp Hour Electronics Podcast

56 subscribers

published לפני שנה

שתפו

MP3•בית הפרקים

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 to reality
How do you know an actuation has happened
RESD – Renode sensor data format
Drone data example
Finding and testing the variety of use cases
Borderline criteria
Fuzzing
Kenning AutoML
Anomaly detection on an MCU with Kenning
Co-op example
Adding
System designer
Environment al board
Aerocore2 STM
Camera
Checking on the pin / assignment problem
Supporting vendors that have good support / open source
ADI plugins for Zephyr
Root of Trust Caliptra
Interested in Antmicro services and products? Check out offering.antmicro.com

57 פרקים

#Tech #The Amp Hour (Chris Gammell and David L Jones #The Amp Hour (Chris Gammell #Physics #Science #Natural Sciences #Podcasting Education #David Jones

כל הפרקים

The Amp Hour Electronics Podcast

1
#694 – Voltage, Vibes, and VOCs 1:11:34

לפני 11 ימים1:11:34

1:11:34

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 ). Last day to input is June 1st. This episode was recorded Monday the 12th, which has implications on discussions. Dave recently returned from Melbourne for Dave’s recent visit to Electronex . Dave saw past guest Scott Williams there (he has been interviewed by both Dave and Chris ). Scott’s company Xentronics is also a Golioth partner They discussed service providers in the electronics industry at including turnkey solutions (concept to production and marketing) versus services only (firmware, PCB layout, CAD). The choice of show for a service provider might depend on the customer vertical (e.g., medical expo for medical device design). Farmers are described as rough clients due to being cost-constrained, needing durable solutions for harsh environments, and being unforgiving of downtime. The Australian Manufacturing Week was unexpectedly enormous , dwarfing the electronics show in scale and attendance, with lines up to 40 minutes long just to get in. The manufacturing show featured “Heavy Metal” manufacturing , like laser cutters, sheet metal benders, and giant machines cutting thick steel, which Dave found more exciting than the electronics demos. They discussed the scale of manufacturing equipment , comparing it to shows like IMTS in Chicago with multi-story machining centers and machines weighing hundreds of tons. Australia manufactures things like steel, large steel structures (bridges), and large custom parts like excavator scoops. Dave is conducting environmental air quality tests in his office , measuring formaldehyde, CO2, and other factors. He has to run his air conditioning for one of the test conditions. The environmental monitor measures temperature, pressure, humidity, VOCs, noise, carbon dioxide, formaldehyde, PM2.5 particulate matter, and radiation . The radiation sensor uses a tube requiring 381 volts . XKCD graphic showing relative radiation Dave observes large formaldehyde spikes every time he opens his door , which go down within about 10 minutes. His CO2 levels are typically 800-900 ppm . The AC unit cycling is visible in the humidity measurements . Chris asks about the availability of affordable VOC sensors now. Dave believes his monitor uses a common sensor like the BME680. Chris explains that the availability of affordable VOC sensors is linked to FEMA trailers after Hurricane Katrina , where high formaldehyde levels caused illness, leading to regulations and subsequently more affordable sensors. Modern VOC sensors often measure gas resistivity in ohms . Some PM2.5 sensors use a fan and a laser to detect particles. Dave saw small desktop lathes at the manufacturing show and was tempted to buy one for $800. Chris explains the difference between a mill and a lathe. Potential uses for a lathe are discussed, including making knobs . Chris advises against buying a personal machining tool like a lathe or mill unless you need parts immediately, suggesting using online services instead, as getting $800 of value from occasional use is difficult. Dave jokingly suggests a lathe might be useful for “zombie apocalypse manufacturing” , or more darkly, for making gun barrels . Chris mentions his past experience with a mill, which he traded for a 3D printer kit. He now prefers “it just works” solutions. They discuss receiving free 3D resin printers and the difficulty of finding uses for them unless you are already skilled in 3D modeling. Discussion shifts to the recent drop in tariffs between China and the US. Dave believes this will lead to lots of manufacturing coming back to the US , citing announcements from car companies and others (but providing no sources). NPR covered how tariffs are impacting Digikey and Thief River Falls Chris is skeptical that the tariff drops or initiatives like the CHIPS Act will cause significant, long-term shifts in the global supply chain, especially for components like capacitors or packaged semiconductors. The complexities of building fabs and the long lead times are mentioned in relation to the CHIPS Act. Chris recommends a YouTube channel about shipping and logistics and mentions MarineTraffic.com for tracking live global shipping data. Dave mentions issues with Bluetooth data dropouts and incorrect values on a new Brymen BM787 multimeter . Dave recently made a video about Test Controller , a free Java-based program that automates hundreds of test instruments (multimeters, power supplies, loads) via serial interfaces. It allows scripting and custom driver creation. Dave considers using Test Controller and multiple instruments with his microscope PC for overlaying data on video. Chris introduces the concept of “vibe coding,” which means letting AI do the coding . You act as a product manager providing requirements and feedback. Dave has used AI for coding before and is interested in using it for his next project due to infrequent coding leading to needing to relearn tools. He suggests using it for a simple timer project, especially for annoying tasks like generating fonts. Chris is using AI for a location-sharing web app prototype for a meetup. He describes the experience of watching the AI modify files and interact with tools as “trippy”. He uses “Claude credits” for this. They discuss AI as a new tool. Chris expresses concern about how students learning to code today will develop troubleshooting skills if AI does much of the basic work. Dave received a new piece of high-end test equipment: a Microtest Impedance Analyzer (model 6632) . This is distinct from an LCR meter and can measure the entire frequency impedance sweep up to 10 MHz (for the model received). The impedance analyzer can be used to characterize components like PCB inductors, assess bypass capacitor performance on boards, or measure materials like piezoelectric substrates . It can also show admittance circles and DC bias characteristics. Chris mentioned that past guest Carl Bugeja would benefit from a tool like the impedance analyzer Dave notes the impedance analyzer is very specific and requires special fixturing. It supports open, short, and load compensation . Dave also recently received a heavy GW Instek AC power source , which can be used for power line simulation (adding spikes, dropouts, etc.) to test products. Trying out generating show notes using NotebookLM from Google. We’d love your feedback in the comments.…

The Amp Hour Electronics Podcast

1
#693 – Small Scale Electronics Manufacturing with Colin O’Flynn 1:18:42

לפני 19 ימים1:18:42

1:18:42

Welcome back Dr Colin O’Flynn of Dalhousie University and New AE tech! Colin has been on the show twice before Episode 239 in 2015 Episode 552 in 2021 Colin continues to publish/do research around side channel attacks Now he’s targeting different ports / Jitter measurements JTAGulator RF Mixer Side channel with power Can you fix it on a chip? Targeting an SD Card port because there’s a clock Other clocked things like displays / RF State of hardware security RPi episode (RP2350) OpenTitan Root of Trust Episode with Laura Abbott from Oxide Open vs closed about security Guidelines for what to care about like in the ARM PSA UK gov’t Lowrisc Sonata System CHERI / CHERIot Secure / non-secure Artix 7 FPGA Mouser bonded area Pick and place experiments Charm High / Neoden Failing on fast turn Person running production Recovering from Covid shortages Airtag teardown ESP32 HCI supposed vulnerability (and response) Colin is writing a book about small scale production Sign up to learn more about the book when its available ! Students “Kids these days” ChatGPT in the classroom Check out Colin’s blog for more info!…

The Amp Hour Electronics Podcast

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#692 – Like a steam engine in your house 1:13:25

לפני 7 weeks1:13:25

1:13:25

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’ll be taking advantage of Duke Energy’s PowerPair , a program to get a bulk amount for the battery and ongoing payments to act as a virtual power plant. Telsa Powerwall 3 Teardown Australian politicians are proposing money for batteries for everyone in Australia Peter Walkinson batteries CATL batteries Back powering off a Chevy Bolt AC battery power Peaker plant Check out the rates for peak power in New South Wales (high!) Base load Chris is working on a new series for tiny hardware nRF52840 With careful planning, it’s possible to get a “0.4 mm pitch” (found out it’s actually 0.35 mm!) onto the JLC 6 layer process because they now allow via in pad. Jumperless v5 episode (though as a reminder, we’re giving away the OG versions, not the v5) Dave review of Jumperless (mailbag video) We are doing a 2025 listener survey and added some new questions Slow trigger R&S version Laminated cheat sheet Jeff Geerling Bosch video The Tariffs in the US are an absolute mess. Since recording they have been downgraded, but they are definitely still going to have some outsized influece on the electronics world. Chris thinks that it makes more sense to race to the bottom of available parts (like the new $0.10 CH572 with Bluetooth), pay the tariff, and put in more time and effort on the software. Not that Chris is the intended audience, but also that it’s not going to have the effect that is Ghostbusters song…

The Amp Hour Electronics Podcast

1
#691 – System Designer Lets You Try Every Part with Michael Gielda 1:11:55

לפני 10 weeks1:11:55

1:11:55

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 to reality How do you know an actuation has happened RESD – Renode sensor data format Drone data example Finding and testing the variety of use cases Borderline criteria Fuzzing Kenning AutoML Anomaly detection on an MCU with Kenning Co-op example Adding System designer Environment al board Aerocore2 STM Camera Checking on the pin / assignment problem Supporting vendors that have good support / open source ADI plugins for Zephyr Root of Trust Caliptra Interested in Antmicro services and products? Check out offering.antmicro.com…

The Amp Hour Electronics Podcast

1
#690 – Clap on, clap off, lights flicker 1:02:15

לפני 12 weeks1:02:15

1:02:15

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 Pulse stretcher 3rd mode ‘break on open’ Chris is working on a design inspired by the Apple AirTag Golioth just launched Bluetooth support (recorded prior to this announcement) It has an nRF52840 and NFC onboard, with a bunch of sensors. It won’t work with FindMy nroot tag Linus video about M4 Mini Jeff Geerling talking about storage MKBHD iPhone16e NTN Keyfinders The Clapper SAW filters Dave’s talk at UNSW (months ago) How did you learn about oscilloscopes without the internet AC power issues – brownout? need to scope power Scale of electricity…

The Amp Hour Electronics Podcast

1
#689 – A Jumperless Breadboard with Kevin Cappuccio 1:14:05

לפני 14 weeks1:14:05

1:14:05

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 MT88161 FPAA Resistance of the traces BSky Schematic CLOSS network Power Op Amps +/- 9V supply Or just all the parts laid out in one pic Layers/routing Probe circuit Bus Pirate adapter Raspberry Pi adapter Interface Full color WJP 3d printing ( and on X ) Zephyr shells You can still buy these on CrowdSupply Repos https://github.com/ Architeuthis-Flux/JumperlessV5 https://github.com/ Architeuthis-Flux/Jumperless https://github.com/ Architeuthis-Flux/breadWare Follow Kevin online Bsky Mastodon Discord…

The Amp Hour Electronics Podcast

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#688 – The Tandy Train 1:10:01

לפני 16 weeks1:10:01

1:10:01

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 sourced the OS (kudos) Andrew Witte, former CTO of Pebble, was a guest on the show Tandy200 Annie Lennox on the train with her Tandy (see cover image) Capacitive forming / reforming Electric Dreams Multimeter repair Tandy teardown…

The Amp Hour Electronics Podcast

1
#687 – The RP2350 with the Raspberry Pi Team

לפני 18 weeks

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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 is a Hazard 3 processor , designed by Luke based on a previous processor called the Hazard 5 HB5 There is a mux on the core and you select which side you’re going to use at boot There are 48 GPIO (but users always want more) Chris Boross (first time on the show) is on the commercial team. He’s seing interesting applications for the RP2350 including devices that are using it for motor control. They also have seen the part used in satellites because mRAM or masked ROM is less susceptible to radiation errors The PIOs have changed, but are more evolutionary from the RP2040 The PIO allows you to create state machines that process inputs without processor interventions, basically like tiny cores 2 cores – 8 total Interesting PIO applications Luke still likes that DVI on 2040 that was discussed on the first episode they were on (#529) CAN is possible USB host / device MII / RMII ULPI – USB 2.0 Phy The core frequency only increased 133 MHz -> 150 MHz. There is tougher timing with the M33 LVT – lower voltage threshhold 30 -> 40 pins There are now variants listed on the RP2350 product page (but not in mass production) that include flash in the SOM package RP2040 was one power domain “Powerman” (and of course AVR Man ) Switched core AON – always on 32 kHz There is a C/C++ SDK that is the basis for other ports Security is a focus for the RP2350 Bootrom in every chip Secure boot M33 features – secure / non-secure RISC V PMP RCP – Redundancy Coprocessor Raspberry Pi had a challenge / bounty for getting the secret out of the RP2350 OTP with secure boot One of the few silicon companies doing this sort of thing in public Past guest Aedan Cullen was one of the hacks called “Hazardous threes”. He gave a talk about it at 38C3 Past guest Colin O’Flynn was also mentioned because collaboration around side channel attacks with the Chip Whisperer IOActive used a FIB – Fine Ion Beam – and passive voltage contrast to capture an impressive image of a decapped chip (see the RPi post ) “Never want to see ‘novel technique’ in an email” Improving the RP2350 silicon How do you decide what to fix/leave? Can it be changed in metal/vias? SIO spinlock not being fixed Chicken Bit Filler cells are reprogrammable and help with fixes It costs approximately $50K per layer to change (ostensibly because of the high costs of masks) ULA – uncommitted logic array Die shrink doesn’t seem to make sense Will keep making each chip as long as 40 nm fabs are around Thinking about the RP2040 The easiest way to get started is to use a Pico (RP2040) or a Pico 2 (RP2350). Both have connectivity options as well. Raspberry Pi is now a public company! Doesn’t change much other than the business scrutiny.…

The Amp Hour Electronics Podcast

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#686 – A Benchtop Pick and Place with Stephen Hawes

לפני 19 weeks

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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 Videos about eeprom KiCad pos file Can reliably place 0402 Lumen v4 product page Motherboard of v4 Running Marlin FW Head has two heads/nozzles Compare the Lumen to other methods (hand placed, paying for assembly) OHM (Open Hardware Manufacturing) podcast What industries are open? Thea Flowers (of Winterbloom synth fame ) just joined the team Microscope Other tools Space constraints Stephen does a great job talking through many experiments and upcoming features on his youtube channel Prototyping PCBs with a fiber laser Micronix Making PCBs on a 3D printer (hack session with Stephen’s former employer) Timon (Skerutsch) makes double sided PCBs by inserting enameled wire through drilled holes Is this the year you should get a Pick and Place? Stephen won’t say yes (but I will)…

The Amp Hour Electronics Podcast

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#685 – Data Provenance in the Home, Server, and Fab

לפני 23 weeks

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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 eat all free cash flow (and Chris is considering the latter… ) Pat Gelsinger has stepped down / retired / been forced out at Intel Intel will now have co-CEOs . As past guest Luke Wren wrote on Mastodon, “ Based on historical trends I predict the number of Intel co-CEOs will double every two years “ Startup in Ohio will apparently be making Quectel parts for the US market . We expect to see lots of silliness like this in the next few years because of forthcoming tariffs……

The Amp Hour Electronics Podcast

1
#684 – Lee Felsenstein: The Computer Revolution & Counterculture

לפני 25 weeks

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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: https://www.amazon.com/Me-My-Big-Idea… https://felsensigns.com/ 00:00 – Full 3 hour talk with Lee Felsenstein 08:24 – University of California at Berkeley, and the Free Speech Movement. 29:04 – First Junior Engineer job at Ampex 36:20 – The first hackathons with Richard Greenblatt 37:33 – Hackers, Heros of the computer revolution 1:03:36 – Techical career at Ampex 1:12:52 – Atari Computers and Steve Jobs, Nolan Bushnall, and Allan Alcorn 1:15:00 – He tried to pitch social media to Steve Jobs 1:22:15 – Designing the Pennywhistle 103 modem + 1:25:36 – Marty Spergel selling kits 1:31:53 – Steve Wozniak and how the Apple 1 is NOT a personal computer 1:43:42 – Osborne Computers 1:53:22 – Osborne 1 physical design 1:57:57 – Osborne 1 development timeline 2:01:19 – The Osborne Effect wasn’t what killed the company…

The Amp Hour Electronics Podcast

1
#683 – Troubleshooting is the skill

לפני 28 weeks

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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 power cables Buried cables Spotify is bricking the Car Thing but others are trying to save it “injurnear” Chris recently developed and coded up a cellular connected relay board for a Smart Locker application…

The Amp Hour Electronics Podcast

1
#682 – Your Mind Is The Tool

לפני 30 weeks

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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% etest Adding rails to PCBs for production Reddit discussion thread: why not work on a product? That is, Dave, the wise one. Videos Live stream issues Post from Twitter: Is 2 layers all you really need? This person thinks so, or is trying to convince themselves as much. Armchair quarterbacking Ian Johnston replacing the display on an 8.5 digit DMM Jack Ganssle has posted his final newsletter (The Embedded Muse)…happy retirement! Jack has been on the show twice: Episode 54 (!) Episode 489 Ward Christensen, Inventor of BBS and XModem, (and former listener of the show!) has passed away Dave is interviewing Lee Felstenstein for our next episode…

The Amp Hour Electronics Podcast

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#681 – Compact High Speed Design with Lukas Henkel

לפני 31 weeks

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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 Requirements to fit into ______ iMX8 ULP – 0.4mm CSP SIP Footprint Module abstraction layer talk Framework laptop Software support / BSP SIP will be different than PiMX8 Crowdsupply campaign launching 2-3 weeks and delivery in Dec/Jan OpenSource laptop CM4 vs PiMX8 SPI Flash with backup partition Secure element SE050 Footprint for coral tpu and Halo 8 Trying to solve the problem of vision use cases Marketing using layout / products but also making money on it Katerina show Visualizing simulations Developing intuition OpenEMS Usability is based on python scripting Using Blender for heat map BVTKNodes uses .vtk file output Multiphysics solvers Things that drive Lukas For HDI, Thinking in 3D / 2.5D and being able to visualize Layers ranging from 4 to 18 Any layer design for SIP Wurth electroncis for high density “any layer stackup” Article series on altium for the open laptop Follow Lukas on LinkedIn Lukas also was a co-founder of PCB Arts . We had his cofounder Saber on the show in the past.…

The Amp Hour Electronics Podcast

1
#680 – Catching Rockets with Musk Sticks

לפני 32 weeks

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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 a livestream each week 1 wire UID (pioneered by Dallas, then Maxim, now Analog…le sigh) Dave is selling a new Bryman multimeter, the BM2257 ( teardown photos ) Chris just returned from Embedded World North America, doing a demo at the Joulescope booth Chris also gave a talk at the Zephyr meetup which will be released in a few weeks Hackaday article about their comment section and project/article feedback References Musk Sticks NC floods might impact the supply chain due to Spruce Pine NC being a source for quartz. We didn’t read this article, but it was a better explainer than we had at the time . Meshtastic objects to the proposed FCC changes…

The Amp Hour Electronics Podcast

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#679 – Satellite Design Engineering with Dan Esparon

לפני 33 weeks

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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 https://www.inovor.com.au/missions/ They design and build their own Flight computers, ADCS systems, UHF radios, Battery modules and Solar Arrays in Australia.…

The Amp Hour Electronics Podcast

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#678 – All About Antennas with Katerina Galitskaya

לפני 35 weeks

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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 adding elements Dummies in the lab. The one in the episode photo is a dummy head filled with liquid (?!) SAR – Specific Absorption rate Simulation vs lab work (dimensions) Anechoic chamber When to go with custom antenna? Buying off the shelf antenna? New Airpods with fancy 3D antenna Ben’s video about laser sintered antennas MIMO / Beamforming the failed promises of 5G When to simulate Some open source programs out there (“EMSee”?) Simulating vs visualizing Most of the time it’s not about vizualizing fields What is the iteration elements of the antenna? Satellite antenna design Good to go external Thinking about the dielectric const of case Follow Katerina on LinkedIn !…

The Amp Hour Electronics Podcast

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#677 – Watt Is The Deal

לפני 36 weeks

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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 many years ago. Chris, Dave, and Jeff (yesssah!) recorded at ESC in episode 41! Bootstrapping new conferences Cellular power modes Dave old GSM video PSM / eDRX ALT1350 Dave got a smart meter on his home setup EDMI EEVblog forum post about leaky power bill Maybe a trickle Chris has been trying out Meshtastic , which is based on LoRa. Check out Jeff Geerling’s video for a good overview . meshtastic subreddit People posting about airplanes flying overhead ( example post ) like ham radio contacts Meshmap…

The Amp Hour Electronics Podcast

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#676 – Moving House (And Lab)

לפני 39 weeks

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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 designing is called the Drachm (“dram”) The hardware Chris has been working on for the past 2 years is now open source Flox video with machine learning on a camera also featured Chris Altium finalized their acquisition by Renesas . The price already went up ( discussed previously) Raspberry Pi released the RP2350 while we were away Inductor polarity on the RPi Pico 2 RP2350 Datasheet You can choose the processors you want (Dual m33, dual RISC V) Microchip was offline due to …. HACKERS Dave has been trying out a new home battery storage system NMC vs LFP Reverse cycle There have been lots of layoffs in tech, including 15K (!) at Intel Layoffs.fyi Being sued for a battery review? Say it aint so…

The Amp Hour Electronics Podcast

1
#675 – Changing Course with Shawn Hymel

לפני 42 weeks

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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? New courses will include FreeCAD and 3D printing and will be published by Digikey Part design in FreeCAD 0.22 in Mango Jelly Learning modeling vs learning an actual program Scoffolding Making a Zephyr course Zephyr / Golioth training Ecosystem vs RTOS Workshop at Harvard Trying to train on hardware What should engineers know about ML Andrew Ng’s course on Coursera Updated for NumPy / Python Understand Neural Networks Can treat them as a black box More important to understand statistics and data science Hot dog / not hot dog (silicon valley) Model zoos Hugging Face Coprocessing on U55 – U85 ToorCamp Michael Cheich Robert Ferenec Marketing courses Running You can find Shawn as ShawnHymel on most social Twitter LinkedIn Mastodon Bluesky TikTok Instagram You can also check out his site, shawnhymel.com…

The Amp Hour Electronics Podcast

1
#674 – Turtles as a Service

לפני 45 weeks

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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 Embedded World North America is happening in Austin in October. There is a vendor map now. Voltnuts Open source book Tiny Tapeout Tantalum Caps from AliExpress What’s next for ASML Ben Krasnow printing PCB traces again…

The Amp Hour Electronics Podcast

1
#673 – Lifelong Learning with Bitluni

לפני 46 weeks

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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 PCB mill Failing Tiny Tapeout bringing down costs like PCBs Jeri doing “home etching” (making silicon at home) Building the meme project on TT02 GIF construction set Almost like a ROM on board, on each clock it exposes the next byte on paralell output Luni hasn’t submitted to each tiny tapeout but is building a new project Browser assembler that runs in the handheld gaming: “Luni-Asm” cpu + gpu to get vector output Bitluni live youtube / Bitluni – twitch happens Weds at 8 pm CEST Community helps Writing memory controllers Bus master because internal SRAM is so expensive Expense of flash/ram is in IP People running test structures the tiles FPGAs, Gowin – 9K standard up to 25k Gabriel / Lushay Labs – Tutorials for FPGAs HDMI connector Some IP blocks from Gowin Yosys support VS code tools and simulation Gowin FPGA designer Learning clock domains Moving back to art Demoscene came from the cracker scene Different categories / limits 4K category only allows 4K of memory for images and sound (generated) White demo competitions Contact bitluni github twitch…

The Amp Hour Electronics Podcast

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#672 – Silicon Revolution with Matt Venn

לפני 48 weeks

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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 months ago Tiny Tapeout has continued, now working on it’s 8th run. the 5th run is shipping soon. Uri Shaked made Wokwi compatible with making chip designs and then compiling them to verilog for later processing by open source tools 12 bit SAR ADC on TT07 linux capable riscv Analog ASIC design with digital standard cells! We had previously posted Matt’s r eview of 2023 and aims for 2024 Siliwiz ASIC inside synchrotron Touring IHP (Germany) facilities Interview with Nordic Semi designer People are building analog structures on Tiny Tapeout There’s a new course on Zero to Asic that will be about Analog (sign up for the waitlist) There are some new tools being developed surfer – browser based waveform moosic – logic locking plugin for yosys eqy – formal equivalence checking Matt will be doing a TT workshop at supercon 2024 TT08 will have a demoscene competition – VGA and sound output – what’s the coolest thing you can fit in 1 tile? You have until Sept 6th 2024 to submit! Not discussed, but on the list and interesting! Silicon Supply Chains with Ed Conway An early analog design (temp sensor) on TT03 Get TT quality stickers…

The Amp Hour Electronics Podcast

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#671 – NDA Sideshow

לפני 50 weeks

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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 site

The Amp Hour Electronics Podcast

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#670 – Engineering Careers with Circuit Break & James Lewis

לפני 50 weeks

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Check out the Circuit Break Podcast for show notes Parker Dillman Stephen Kraig James Lewis

The Amp Hour Electronics Podcast

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#669 – Freelance PCB Design with Petr Dvorak

לפני 51 weeks

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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 LinkedIn Show your work – Austin Kleon 3 years to get first client 1 month buffer of posts on LinkedIn Building repetitions Outliers / 10000 hours Lists of projects Constraints helping new engineers trying to learn electronics 8×32 pixel displays Petr in Shenzhen Gallup – top strength is learning Personality types Contact Get a free eBook about KiCad on beny-devices.eu Follow Petr on LinkedIn…

The Amp Hour Electronics Podcast

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#668 – 50.0000 Ohms

לפני 1 year

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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…

The Amp Hour Electronics Podcast

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#667 – Long Distance with CNLohr-a 1:31:23

לפני 1 year1:31:23

1:31:23

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…

The Amp Hour Electronics Podcast

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#666 – Good Energy Citizen 1:06:59

לפני 1 year1:06:59

1:06:59

Sickness Starliner scrub Boeing and the Dark Age of American Manufacturing Toolkit for flying Search industry A380 EUV in semiconductors EV vs PHEV vs ICE Tesla sending emails to suppliers after laying off the Supercharger team powerledger / POWR Virtual power plant DEYE inverter Buying repacked batteries AC Battery vs DC battery Hybrid inverter Colin Furze TSMC running into problems with work culter after moving to US (Arizona) Marketplace piece about jobs at semi plans in AZ 996 Photos of the new Samsung Fab going up on Google Maps Chris asked on Mastodon about the best time to charge an EV Duck Curve , which Chris first learned about on episode for 630 The costs of different aspects of a chip fab…

The Amp Hour Electronics Podcast

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#665 – Really long needle nose pliers 1:09:54

לפני 1 year1:09:54

1:09:54

Analog Cochlear Detectors Voyager I is back online Sustaining engineering Bobiverse books Chandra telescope Embedded World Embedded World US in October Trade shows in US Travel budgets Z80 obsolete notice Rabbit instruction set Dave trying out the Jumperless breadboard (lights up) Uri Robert Nelson Bluetooth Sigrok Zephyr LLEXT ZMK…

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