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Self-Directed Research

OneVariable UG

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This is the Self Directed Research Podcast, where our hosts James and Amos share a little bit about the topics they’ve been obsessing about lately. Visit sdr-podcast.com/ for more information about the podcast, check out all episodes and learn about who we are and how to support us! Questions, comments, interested in sponsoring? Send an email to contact@sdr-podcast.com
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With years of experience in electronics, networking, and programming, get ready for your podcast about practical advice for producers, engineers, makers, hobbyists, crafters and many more enthusiasts. Discover how you can apply these concepts to your hobbies, projects, and products. Juditova, founder of techzorro.com, offers valuable insights into servers, switches, routers, microcontrollers, microprocessors, and programming languages. He shares his passion for DIY electronics, coding projec ...
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Let's Make It is a show that is all about making things, in particular electronic things. During this show we will be using things like Arduinos, PIC chips and Raspberry Pie's to make all kinds of electronic gadgets. We are making these gadgets to learn how they work. Not technical, not to worry, we are going to start really simple and teach you as we go along. All it requires is a desire to want to learn some programming and electronics. This show is hosted by Mike Myers of Genius Idea Stud ...
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Let's Make It is a show that is all about making things, in particular electronic things. During this show we will be using things like Arduinos, PIC chips and Raspberry Pie's to make all kinds of electronic gadgets. We are making these gadgets to learn how they work. Not technical, not to worry, we are going to start really simple and teach you as we go along. All it requires is a desire to want to learn some programming and electronics. This show is hosted by Mike Myers of Genius Idea Stud ...
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Let's Make It is a show that is all about making things, in particular electronic things. During this show we will be using things like Arduinos, PIC chips and Raspberry Pie's to make all kinds of electronic gadgets. We are making these gadgets to learn how they work. Not technical, not to worry, we are going to start really simple and teach you as we go along. All it requires is a desire to want to learn some programming and electronics. This show is hosted by Mike Myers of Genius Idea Stud ...
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Disrupt It Yourself

Andrew Stott

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My general thoughts on 3D printing, the maker world, technology and disrupting the world yourself! Support this podcast: https://podcasters.spotify.com/pod/show/disruptityourself/support
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Cryptography FM

Symbolic Software

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Cryptography FM is a regular podcast with news and a featured interview covering the latest developments in theoretical and applied cryptography. Whether it's a new innovative paper on lattice-based cryptography or a novel attack on a secure messaging protocol, we'll get the people behind it on Cryptography FM.
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Predictable Designs Podcast

John Teel

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The podcast for hardware startups and entrepreneurs planning to bring a new electronic hardware product to market. We discuss all things related to developing, manufacturing, marketing, and selling successful new hardware products.
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Picture if you will, a source of energy, so radiant, that it holds the key to our energy future. The sun, a source of limitless potential, emits almost 4 octillion watts of energy every second. That’s a 10 with 26 zeros behind it. If we could harness just a fraction of this power, it would be enough to meet the world's energy needs many times over.…
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A deep dive into the potential benefits, and awkward drawbacks, by making all allocations async and fallible Visit sdr-podcast.com/episodes/async-allocators/ to see the show notes and transcript! CodeCrafters is a service for learning programming skills by _doing_. Visit our referral link at CodeCrafters to start your free trial. If you decide to u…
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An overview of how devices decide how to split streams of bits and bytes into frames, and the things that can go wrong Visit sdr-podcast.com/episodes/frame-sync/ to see the show notes and transcript! The Self-Directed Research podcast is made possible by our sponsors. We offer 30 second host-read ads at the end of every episode. Not sure how to get…
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Amos presents rubicon, which through terrible dynamic linking crimes, brought joy again into developing their website Visit sdr-podcast.com/episodes/dynamic-linking/ to see the show notes and transcript! The Self-Directed Research podcast is made possible by our sponsors. We offer 30 second host-read ads at the end of every episode. Not sure how to…
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An introduction to how the 'plumbing' of async tasks and drivers wait, sleep, and are notified for efficient cooperative action; and a glowing overview of the maitake-sync crate's main primitives Visit sdr-podcast.com/episodes/syncing to see the show notes and transcript! The postcard crate, which is looking for sponsors for the 2.0 release. More i…
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Machines that build machines. It’s a curious paradox. Whenever you consider something that builds itself, physically, it could conjure thoughts of an infinity loop or an M.C. Escher painting. The never-ending loop of technology. The extreme ultraviolet (EUV) lithography machine, a marvel of modern engineering, etches patterns onto silicon wafers wi…
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“Words are the new weapons, satellites the new artillery.” Jonathan Pryce’s villain Elliot Carver says to James Bond in Tomorrow Never Dies right before he manipulates a GPS signal to make a British destroyer begin a confrontation with the Chinese military, may seem like the realm of pop culture; the idea of manipulating GPS signals and disrupting …
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A conceptual introduction to structured communication protocols, and the design decisions behind the postcard-rpc crate Visit sdr-podcast.com/episodes/postcard-rpc to see the show notes and transcript! Episode sponsor: Visit ladybird.org for more information and to join the mailing list.OneVariable UG
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An overview of Thread Local Variables, and the challenges they pose for experimental dynamic linking support. Visit sdr-podcast.com/episodes/thread-locals to see the show notes and transcript! Episode sponsor: Visit ladybird.org for more information and to join the mailing list.OneVariable UG
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“Words are the new weapons, satellites the new artillery.” Jonathan Pryce’s villain Elliot Carver says to James Bond in Tomorrow Never Dies right before he manipulates a GPS signal to make a British destroyer begin a confrontation with the Chinese military, may seem like the realm of pop culture; the idea of manipulating GPS signals and disrupting …
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An introduction to DMA, including what it is commonly used for, and a model of how to think about what the hardware does. Visit sdr-podcast.com/episodes/dma to see the show notes and transcript! You can read the Inside Rust Survey Announcement for information about the Embedded Rust Community Micro Survey, or you can take the survey now byclicking …
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An experience report of attempting and MOSTLY succeeding in using the Cranelift backend for real MacOS applications Visit sdr-podcast.com/episodes/cranelift/ to see the show notes and transcript! Episode sponsor: fasterthanlime, who makes articles and videos about computers for a living. You can support Amos's work by reading articles on their webs…
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A dive into abstracting unusual behavior differences using generics to manage different storage and async usage styles Visit sdr-podcast.com/episodes/bbqueue/ to see the show notes and transcript! Episode sponsor: OneVariable is a consultancy focused on advising and development services in the areas of systems engineering, embedded systems, and sof…
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It’s no secret the world turns. Its 24-hour rotation on its axis gives us the definition of a day. Our moon, recently eclipsed in North America, orbits around us. We, in turn, orbit around our sun along with the other planets, and our entire solar system orbits around the Milky Way galaxy. These cosmic revolutions make up the foundation of our exis…
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An update to previous research about speeding build times, informed by unexpected increased cost of maintenance Visit sdr-podcast.com/episodes/wrong-build-times to see the show notes and transcript! Thank you to Tweede golf for sponsoring this episode. Tweede golf is a Rust consultancy from the Netherlands. Reach out to them if you need help buildi…
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Picture a world where the hum of electricity permeates every aspect of our lives, from the devices we hold in our hands to the vehicles that transport us across vast distances. This is the world of the electrification of everything, a paradigm shift that promises to reshape our relationship with energy and power. As once analog and unpowered items …
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“Third place”. The term originated in a 1989 book written by sociologist Ray Oldenberg. It refers to a place separate from Work or Home where humans can facilitate social interaction. The need for Third Places has grown and was extremely exacerbated by the COVID-19 global pandemic. Like many other things, the pandemic accelerated increasing trends:…
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COVID-19 impacted the world. In December of 2019 news reports out of Wuhan, the capital of Central China's Hubei province, detailed the emergence of an atypical pneumonia-like illness that did not respond well to standard treatments. By January 2020 world health officials had identified the 2019 Novel Coronavirus. By February 2020 the World Health …
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Water is the most precious substance on earth and a primary building block of life. Humans can’t live more than a few days without it. Yet in order to grow, cultivate, process, and transport our food, we waste a tremendous amount of it. So much so that we need to pull more of it out of the ground just to satisfy our agricultural needs, making matte…
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Asthma is a global phenomenon. According to the World Health Organization, Asthma affected an estimated 262 million people in 2019. In the United States alone, the Centers for Disease Control estimates there are over 4.6 million children under the age of 18 with Asthma. According to the Global Asthma Report in 2022, Asthma is ""well controlled"" in…
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The old parable of the country kid moving to the big city and leaving the farm behind is a timeless yarn of youth, ambition, and Hope. In recent years, that trope has become a reality. The number of farmers in the United States alone has been steadily dropping. The percentage of first-generation farmers is close to 78%. It can be a tough business. …
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Severe Storms. Wildfires. Floods. According to Statista, there were 421 natural disaster events recorded worldwide in 2022. Among the most damaging are tropical cyclones, what the World Health Organization would refer to as typhoons or hurricanes. As damaging as the wind can be, the greatest damage to life and property is not from the wind, but fro…
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When you sit down to eat your next meal, think about how your food got in front of you. Did you grow it yourself or did you buy it from someone? If the latter, was it from a restaurant or a store? Do you ever wonder how it gets from the farm to your plate? Whether you are a vegan or a die-hard carnivore, your food comes from a farm somewhere. It ne…
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One of the few things every human on this planet, and every other living thing for that matter, shares is the fact that everything gets 1,440 minutes per day. Our planet makes one rotation on its axis, the sun comes up, the sun goes down and we start the dance all over again. Part of the human experience is how we spend that time. Multiple sources,…
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Picture an average night at home. You’re sitting on the couch, remote in hand, maybe with a beverage by your side. You use your remote to navigate through the menu of your favorite streaming platform to select an episode of your favorite TV show. You pause to give a command to your smart speaker to shut off the music you were playing before sitting…
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It’s the final episode! Tod Kurt returns and serves as guest host and interviews Paul. Paul shares how he started with open source, his favorite project, exciting things coming to CircuitPython, and more. 00:00 Welcome 00:40 How Paul first got started with computers 1:45 Paul’s start with open source 5:10 Learning Python Talk Python training course…
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CircuitPython core developer Jeff Epler joins the show. He and Paul discuss how he sees his role as a core developer, adding JPEG support to CircuitPython, and adding over 2000 new fonts. 00:27 Welcome Jeff and his start with computers 00:54 How Jeff started with open source 1:45 Discovering CircuitPython 2:12 Jeff’s role as a CircuitPython core de…
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Welcome to Beyond the Microchip So much of our daily lives are controlled or influenced by electronics. We rely on GPS to direct us, we hit "brew" on our coffee machines for our mornin' cup of Joe, we wave our hands over a sensor to get running water from a faucet and press a button to open our garage doors. But do we really know what's going on in…
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Debra Ansell joins the show and shares how she started with computers and electronics, the Orb-sessed LED Sphere, the PixelBlaze Pillow, and more. 00:30 How Debra started with computers and electronics 2:50 Creating the Orb-sessed LED Sphere 5:08 How CircuitPython helped with the project The Seeed XIAO Sense nRF52840 7:11 Combining maker skills LED…
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Jan Goolsbey joins the show. He and Paul discuss the CircuitPython Community Bundle, Jan’s contributions to the bundle, his IoT wind chimes project, and the string car racer. Transcripts are available in most podcast players. 00:30 Welcome Jan 2:24 Discovering CircuitPython 3:52 CircuitPython’s Community Bundle 6:10 Jan’s favorite libraries in the …
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Max Lupo joins the show and shares how he uses electronics in his art pieces and installations. 00:00 Welcome Max 00:45 Max’s start with computers and electronics 01:53 Which programming language is best for each art piece? 03:47 Beep-Boopatronics 7:36 Continuous Memory 10:01 The Margin Maker 14:20 Which board? Max’s homepage. Max’s GitHub reposito…
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Tod Kurt joins the show. Tod shares his synthio boards and discusses his recent trip to Hackaday’s Supercon. 00:00 Welcome Tod 1:00 synthio CircuitPython Day Panel Discussion 1:10 What is synthio in CircuitPython? 2:00 Tod’s custom synthio micrococontroller boards (todbot/circuitpython-synthio-tricks: tips, tricks, and examples of using CircuitPyth…
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Erin St. Blaine joins the show and shares where she finds inspiration, advice for starting Neopixel projects, diffusion tips and tricks, and more. 00:33 Erin’s start with computers and electronics03:18 Where Erin finds inspiration04:42 Advice those starting with Neopixel or LED projects05:43 What were the challenges with LEDs underwater?08:41 Diffu…
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Martin Tan joins the show. He and Paul discuss Martin’s new book, micro:bit Projects with Python and Single Board Computers: Building STEAM Projects with Code Club and Kids’ Maker Groups. Martin’s book at Apress: micro:bit Projects with Python and Single Board Computers Martin’s book at Barnes & Noble 00:40 Martin’s start with computers and electro…
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Dan Halbert joins the show and shares how he started with computers, discovering CircuitPython, where CircuitPython might be going next, and more Show Notes 00:31 Dan’s start with computers and electronics 02:54 Making computers easier to use 05:09 Discovering CircuitPython 8:40 Advice for new contributors to CircuitPython’s core 9:40 How CircuitPy…
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Ben Shockley, creator of Mini Fig Boards joins the show. He and Paul chat about the Mini Fig boards and how they came to be, how CircuitPython has helped in development, advice for new PCB designers, and more. Show Notes 00:22 Ben’s start with computers and electronics 1:27 The MiniFigure boards - what are they and how did they start? 6:40 Comparin…
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Seth Kerr joins The CircuitPython Show and shares what an FPGA is; his creation, the IcyBlue Feather FPGA; and how it might be used with CircuitPython. Visit CircuitPythonShow.com for show notes, transcripts, and more. 00:33 Seth’s start with computers and electronics 01:24 What is an FPGA? 02:27 What are the advantages to using an FPGA? 03:16 Seth…
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Danny Staple joins the show and discusses his latest book, Robotics at Home with Raspberry Pi PIco. For show notes and transcripts, visit The CircuitPython Show website. Show Notes: 00:00 Intro 00:58 Danny’s start with computers and robotics 01:51 What the reader can expect from Danny’s book, Robotics with Raspberry Pi Pico 03:04 The robotics shopp…
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For several years, CryptoHack has been a free platform for learning modern cryptography through fun and challenging programming puzzles. From toy ciphers to post-quantum cryptography, CryptoHack has a wide-ranging and ever increasing library of puzzles for both the aspiring and accomplished cryptographer. On this episode, Nadim and Lucas are joined…
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On April 19th 2022, Neil Madden disclosed a vulnerability in many popular Java runtimes and development kits. The vulnerability, dubbed "Psychic Signatures", lies in the cryptography for ECDSA signatures and allows an attacker to bypass signature checks entirely for these signatures. How are popular cryptographic protocol implementations in Java af…
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In this episode I answer the following questions: Q1: What PCB design software do you recommend? Q2: How can I ensure that I'm able to sell my product so I don't end up with a warehouse full of unsold inventory? Q3: How can I find a technical co-founder?John Teel
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Threema is a Swiss encrypted messaging application. It has more than 10 million users and more than 7000 on-premise customers. Prominent users of Threema include the Swiss Government and the Swiss Army, as well as the current Chancellor of Germany, Olaf Scholz. Threema has been widely advertised as a secure alternative to other messengers. Kenny, K…
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One of the most common questions I get asked is how long does it take to develop a new electronic hardware product and bring it to market? The simple answer is: probably longer than you think. The more accurate answer depends on 3 critical variables which I reveal in this episode. Near the end of this episode I then give you some concrete estimates…
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