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PODCAST

Embedded

Logical Elegance

I am Elecia White alongside Christopher White. We"re here to chat about the interests, careers, and lives of engineers, artists, educators and makers. Our diverse guest list includes names you may have heard and engineers working quietly in the trenches. Either way, they are knowledgeable, enthusiastic, and inspiring. We"d love to share our enthusiasm for science, technology, engineering, art, and math (STEAM).

technology

All Episodes

01:04:39

294: Ludicrous Numbers of LEDs (Repeat)

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2022/08/25

Mike Harrison challenged us to a PIC fight on twitter. Surprisingly, no blood was shed and we mostly talked about LEDs and art installations. Mike’s YouTube Channel and his website electricstuff.co.uk. He's on twitter as @mikelectricstuf. Here's a link to what prompted the show: PIC fight on Twitter. His professional hire-him-to-work-on-your-neat-stuff site is whitewing.co.uk For driving LEDs, Mike likes the TI TLC5971: 12-Channel, 16-Bit ES-PWM RGB LED Driver with 3.3V Linear Regulator.

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50:59

316: Obviously Wasn't Obvious (Repeat)

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2022/08/18

Professor Barbara Liskov spoke with us about the Liskov substitution principle, data abstraction, software crisis, and winning a Turing Award. See Professor Liskov’s page at MIT, including her incredible CV.

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01:04:51

424: Between Midnight and 6am

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2022/08/11

Gustavo Pezzi spoke with us about using fun and simple systems to explain low-level concepts and how they work in higher-level engineering tasks. For example, teaching microprocessor concepts using Atari 2600 assembly and physics by creating a simple game engine. Gustavo’s site is Pikuma.com. He has a free taster course on bit-shifting. We also talked about Atari 2600 Programming with 6502 Assembly and Physics Game Engine Programming. Stella, a multi-platform Atari 2600 emulator For examples of

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01:08:07

423: Speaking of Aardvarks

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2022/08/04

Phillip Johnston joined us to talk about how engineering approaches can change over time. This conversation started with Phillip’s Embedded Artistry blog post How Our Approach to Abstract Interfaces Has Changed Over the Years. His new course is Designing Embedded Software for Change. Embedded Artistry has a Design Pattern Catalogue (though Elecia was looking at Software design patterns on Wikipedia during the podcast). https://github.com/embvm Phillip is working with Memfault on an ongoing

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55:28

422: It’s Not a Bug, It’s a Feature

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2022/07/28

Chris and Elecia chat about origami, learning, whether to future proof tools or buy the cheaper option, simulators, and classes. Elecia is gearing up to teach another Making Embedded Systems course. Sign up if you want to be in the Yellow Seahorses cohort! Sign up early and often. Sign up other people. Ask other people to sign themselves up and even more other people. Well, you get the idea. Check out Wokwi! While it looks like it is for Arduino from the front page, there is a lot of work going on

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01:16:48

421: Paint the Iceberg Yellow

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2022/07/21

Chris Hobbs talks with Elecia about safety critical systems. Safety-critical systems keep humans alive. Writing software for these embedded systems carries a heavy responsibility. Engineers need to understand how to make code fail safely and how to reduce risks through good design and careful development. The book discussed was Embedded Software Development for Safety-Critical Systems by Chris Hobbs. This discussion was originally for Classpert (where Elecia is teaching her Making Embedded

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01:05:41

420: Googly Eyes and Top Hats

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2022/07/14

Dan White, CEO of Filament Games, spoke to us about educational games, how to make play part of learning, and simulating robots. We also discussed what makes a good (or bad) learning experience, the limits of games as educational tools, and the elements of fun. Roblox is a game platform and game creation system. Filament Games is developing a robot simulator called Roboco. Filament has many games out in the wild, check out their portfolio. If this sounds like fun, check out their careers page. Durf

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01:01:37

314: Why Are Wings Needed in Space? (Repeat)

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2022/07/07

Mohit Bhoite makes functional electronic sculptures from components and brass wire. We spoke with him on the hows and whys of making art. Mohit’s sculptures, including the Tie Fighter. More on his instagram: mohitbhoite Jiri Prause has a wonderful tutorial on how to make simpler freeform electronics on Instructables. Peter Vogel is another artist making phenomenal freeform electronics. Leonardo Ulian uses electronic components in his art (his don’t function but wow). Advice from Mohit on trying

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01:03:47

419: Fission Chips

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2022/06/30

Eric Schlaepfer and Windell Oskay are the authors of Open Circuits: The Inner Beauty of Electronic Components. We discussed the inner beauty of a number of electronic components as well as cameras, photography, writing, preparing samples, and terrible title puns. You can pre-order the physical book and get a digital early release copy at NoStarch.com/Open-Circuits Windell is co-founder of Evil Mad Scientist Laboratory (@EMSL). He and Eric have collaborated before on several projects: The Three

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01:09:40

418: Answer Me These Questions Three

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2022/06/23

Chris and Elecia question embedded systems then answer listener questions about embedded systems. They mostly agree except about one thing which, after some discussion, they agree upon. Mostly. Video of Cissy Strut cover where Chris plays all of the instruments Video where Elecia shows off some programmatic origami and simulation (not discussed but it seemed reasonable retaliation for talking about Chris’ video) Dynamic Linker for Cortex-M (github repo) Transcript

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47:53

417: I Don’t Know How My Brain Works

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2022/06/16

Alexandra Covor spoke with us about engineering, making, drawing, school, and what it means to be an artist. Alex’s projects are on GitHub and Hackster.io. Her electronics comics can be found as PikaComics on Instagram. The 2022 Open Hardware Summit named Alex as part of the Ada Lovelace Fellowship. Her favorite talk from the summit was Anuradha Reddy talking about Knotty (Naughty) Hardware. Alex works for Zalmotek, a design services firm in Bucharest. We talked about Waylay.io, including their

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51:00

416: EEs Are From PIC, SWEs Are From Arm

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2022/06/09

John Catsoulis is the founder of Udamonic and creator of the Forth-based Scamp development board. He spoke with us about Forth, electrical engineering, and writing a technical book. Find out more about Udamonic’s Scamp at udamonic.com. There are some hardware projects under the Create menu. The Forth programming language is famous for its small size, portability, and post-fix (RPN) nature. John wrote O’Reilly’s Designing Embedded Hardware. While some parts are out of date, the general theory is

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58:46

415: Rolling Computers

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2022/06/02

Lead Solution Architect at Cymotive, Benny Meisels spoke with us about implementing embedded software security in cars. The discussion touches ECUs, IoT vehicles, threat and risk analysis, and how reverse engineering plays a role in security testing. Benny works at Cymotive (https://www.cymotive.com/). You can find him on LinkedIn benny-meisels or on Twitter @benny_meisels. Resources for automotive security: Automotive Security Research Group (ASRG) Upstream Security Hacking a VW Golf Power

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58:01

414: Puff, the Magically Secure Dragon

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2022/05/26

Laura Abbott of Oxide Computing spoke with us about a silicon bug in the ROM of the NXP LPC55, affecting the TrustZone. More information about the two issues are in the Oxide blog: Another vulnerability in the LPC55S69 ROM Exploiting Undocumented Hardware Blocks in the LPC55S69 More about LPC55S6x and their LPC55Sxx Secure Boot Ghidra is a software reverse engineering framework… and it is one of the NSA’s github repositories. Laura will also be speaking about this at Hardwear.io in early

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01:08:45

413: Puppy-Like Glee

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2022/05/19

Chris and Elecia chat about practice, software quality, and empathy for seemingly unmotivated team members. Elecia is teaching another cohort of Making Embedded Systems in the fall, starting late August. There will be reminders between now and then but if you want to sign up, here is the page. The funny and odd music instruction video with the copy-and-paste method of composition. Sign up for the newsletter! Support us on Patreon! Transcript

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01:15:27

412: Inductors Don't Have Feelings

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2022/05/12

Tom Anderson returned to the show to describe how transistors and passives work. We discuss everything from vacuum tubes to diodes to transistors (PNP and NPN) to resistors and capacitors. We search for synonyms among the confusing terminology of cathodes, plates, emitters, anodes, grids, bases, and collectors. This was a tech heavy episode so little bit of brushing up on terms may be useful before (or after): Boltzmann constant Physical constant Vacuum tube Diode logic Diode Push–pull

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01:07:30

411: Batteries Get Upset

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2022/05/05

Ethan Slattery joined us to talk about animals, animal trackers, and how they work. Ethan works for Wildlife Computers. They use the Argos Network for data transfer. He was previously at MBARI and worked with Engineers for Exploration as an undergraduate. Ethan is also known as CrustyAuklet on Twitter and Github. He also has an Instagram page. Things mentioned in the show you might want to know more about: Nautilus Live is a streaming YouTube channel from an ROV exploring the oceans. They have

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01:04:43

305: Humans Have a Terrible Spec Sheet (Repeat)

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2022/04/28

Amanda “w0z” Wozniak spoke with us about her career through biomedical engineering and startups. Amanda contributed a chapter to Building Open Source Hardware: DIY Manufacturing. (A book we spoke with Alicia Gibb about in #289.) Amanda’s chapter was titled Design Process: How to Get from Nothing to Something. For more information about the companies we discussed, check out Amanda’s LinkedIn page.

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51:34

410: Emacs From the Future

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2022/04/21

Chris and Elecia chat about tools, interrupts, and general happenings. Thank you to Newark for supporting the show! The part that was not guessed was an RF FET: MRF1K50HR5. Elecia found MCU on Eclipse (Eric Styger)’s tutorials on Visual Studio Code for C/C++ with ARM Cortex-M (Part 1). Embedded has a Patreon page where you can get access to the Slack group. The book club is starting Prototype to Product: A Practical Guide for Getting to Market by Alan Cohen. Wokwi Raspberry Pi Pico projects

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59:02

409: A Better World

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2022/04/14

Dr. Shirley Davis spoke with us about her book: Diversity, Equity & Inclusion For Dummies. Dr. Davis is a speaker and consultant on diversity, equity, and inclusion topics; her website is drshirleydavis.com. Dr. Davis’ books include: Diversity, Equity & Inclusion For Dummies Living Beyond “What If?”: Release the Limits and Realize Your Dreams The Seat: How to Get Invited to the Table When You're Over-Performing but Undervalued Reinvent Yourself: Strategies for Achieving Success in

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