520: All Sorts of Interesting Facts About Teeth
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Chris and Elecia apologize, discuss uses and abuses of chatbots, reach out to an uncertain manager, try to help someone out of their professor’s draconian rules, and extol the joys of reading. is in Oakland, CA, US. It is wonderful! Some suggestions for UncertainManager: Hang in there! You are probably doing better than you think. Audio books are great! In the US, many libraries have digital libraries with extensive audio collections. There are several apps with different catalogs for the same library Libby, Kanopy, Hoopla, and Palace (check out the California shelf at...
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519: The Password Is All Zeros
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Mark Omo and James Rowley spoke with us about safecracking, security, and the ethics of doing a bad job. Mark and James gave an excellent talk on the development of their safecracking tools at . It included a section of interaction involving the lock maker’s lawyers bullying them and how the Electronic Frontier Foundation () has a to support security research. As mentioned in the show, the US Cyber Trust Mark baseline has a very straightforward checklist; is the overall standard, is the technical checklist, is the non-technical (process/maintenance) checklist. Roughly the process is...
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518: Nothing We Can Do About Frogs
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James Cameron spoke with us about programming for and operating a large telescope. The show is a blend of astronomy, engineering on the fly, and weird lady bug habitats. The (AAT) is part of the Australian National University’s in Coonabarabran, New South Wales, Australia. The AAT has an where you can check in on a very dark sky. James was on where we talked about the Forth programming language and his experiences with One Laptop Per Child. Unrelated to the AAT, Chris took this image of the Andromeda Galaxy (M31) from his over 9 hours (multiple days), stacking...
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517: A Direct, Sensible Podcast
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Nathan Jones and Chris Svec give Chris and Elecia their 2025 performance review. Donations went to , an organization that provides funding and support to low-income and first-generation college students as well as free STEM tutoring for underserved schools. Embedded has already sent in the for a total of over $5000. Here is . We mentioned the , a small but mighty microscope. Also, mentioned was the book The show this week is sponsored by us. And you. Please consider on or . Or tell a friend about the show.
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516: Voices From the Cataclysms of the Universe
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Sophi Kravitz joined us to talk about art, science, and engineering. You can see on Sophi’s website ). A subset of the artwork had a short stay for a demo at . The completed work will be shown in 2026. Sophi mentioned collaborating with two sonic environment artists and . is an ionizing radiation detector. move through space at nearly the speed of light, generally originating far away and long ago. You can also see them in a We also talked about using sculpting in Blender (there are many online video introductions). Sophi does EE consulting and system quality checking...
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515: Script Boomers
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Nick Kartsioukas joined us to talk about security in embedded systems. Common Vulnerabilities and Exposures (CVE) is the primary database to check your software libraries, tools, and OSs: . Open Worldwide Application Security Project (OWASP, ) has information on how to improve security in all kinds of applications, including . There are also cheatsheets, Nick particularly recommends . Wait, what is supply chain security? Nick suggested a : it is about your code and tools including firmware update, a common weak point in embedded device security. Want to try out some security work?...
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514: Just Turn Off All the Computers
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Philip Koopman joined us to talk about embedded systems becoming embodied and intelligent. We focus on the safety considerations of making an intelligent and embodied device. Phil’s new book is . It uses robotaxis as an example as it discusses safety, security, human/computer interface, AI, and a bit of legal theory for tort negligence. If you’d like a taster, Phil gave a wonderful summary in his video: This new book is intended for a wider (less devotedly technical) audience than his book . Phil was last on the show in episode where we spoke about his book Thank you! ...
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513: I’m Sorry You Learned Something
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Jason Turner of C++ Weekly and Empty Crate spoke with us about the joy of puzzles, the changing directions of an interesting career, and the C++ programming language. I mean, of course we talked about C++. But only a little. Jason recently published , a book of puzzles for the logically minded. It teaches programming concepts as engaging puzzles: recursion, binary, assembly, Lisp, regular expressions. You may not know what you are learning but you’ll likely find you know a lot more about how computers work afterward. For the puzzles, paper is better than electronic. But you can...
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512: What if I Didn’t Stop?
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Katherine “Smalls” Connell spoke with us about making thin and flexible circuits, making stretchable electronics, and running a successful Kickstarter. Katherine’s Kickstarter: . Katherine shares her makes, describing her build process for companion robots and other projects. You can find her as The Small Wonder on and . She often goes by Smalls on other social media. We talked about a paper on making stretchable circuits: . If you’re interested in how 3D printing is changing design engineering, Mouser Electronics has some great resources to check out. Their Empowering...
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511: Forty Trillion Divides
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Chris and Elecia talk about the show overflowing to another bit, fight over vim vs nano, consider awards, discuss writing (and self-motivation), consider linear algebra on AI cores, encourage remote device quality assurance, describe design documentation, review timer multipliers, and consider changing chip vendors. Support the show and get goodies: and book (currently on chapter 8 and working through the ) Not mentioned but related to the Cozy Science announcement: Elecia found , a 10-episode podcast that is nicely soothing and science. If you’re interested in how 3D printing is...
info_outlineElecia and Chris talk with each other about the state of Chris’ mind, what makes an embedded developer stand out, “LEGO block” based design, unit tests, and astronomy. Whew!
Elecia was recently on the Changelog podcast, talking about the world of embedded systems.
Chris has been working with Micropython (we talked with Damien George about Micropython on episode 456). He’s using a Pyboard to start, but is looking to move on to this board from Sparkfun. Wikipedia has a nice reference on what the pulse-per-second signal is all about.
Elecia talked about her experience using CFFI to drive unit tests. She also talked about some facts from Information is Beautiful.
Chris’ telescope is the ZWO Seestar S50. There’s also a smaller Seestar S30 now which has a wider field-of-view.
Title reference (Chris and Elecia both thoroughly enjoyed The Good Place, the TV show this is taken from.)
Nordic Semiconductor has been the driving force for Bluetooth Low Energy MCUs and wireless SoCs since the early 2010s, and they offer solutions for low-power Wi-Fi and global Cellular IoT as well. If you plan on developing robust and battery-operated applications, check out their hardware, software, tools, and services.
On academy.nordicsemi.com, you’ll find Bluetooth, Wi-Fi, and cellular IoT courses, and the Nordic DevZone community covers technical questions: devzone.nordicsemi.com.
Oh, and don’t forget to enter Nordic Semiconductor’s giveaway contest! Just fill out the entrance form, and you're in the running. Good luck!
Here’s one of the astrophotos Chris has taken:
The Horsehead and Flame nebulae in Orion taken from a Seestar S50