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Episodes

294: Ludicrous Numbers of LEDs

7/11/2019
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Mike Harrison (@mikelectricstuf) 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 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. Mike will be at 2019 Hackaday SuperCon!

Duration:01:04:38

293: Skateboard Tricks

6/27/2019
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Limor Fried of Adafruit spoke with us about engineering, education, and business. Some new boards we talked about include the PyGamer and PyBadge (which also has a lower cost version). TinyUSB, an open and tiny USB stack from Hathach. In addition to the many excellent tutorials there are some interesting business related posts on Adafruit Learn: How to Build a Hardware Startup and How to Start a Hackerspace Want to get more involved with the extensive, wonderful, and supportive Adafruit...

Duration:00:43:43

292: Now I Feel Less Cool

6/20/2019
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Christopher (@stoneymonster) and Elecia (@logicalelegance) babble about their current projects involving ants, guitars, machine learning, and party planning. A video of Christopher’s ants Some tweet threads about our tour of Santa Cruz Guitar Company. Arrival (also: very old wood) Wood is awesome Adding science to precision craft Elecia has been reading Hands-On Machine Learning with Scikit-Learn, Keras, and TensorFlow by Aurélien Géron. While the 2nd edition preview is on O’Reilly’s...

Duration:00:54:08

291: General Drip and Tinkle

6/13/2019
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Karl Auerbach of InterWorking Labs spoke with us about how the internet works. We talked about domain name services (DNS being the primary one), registries and registrars, domain thieves, and the History of the Internet project. Karl runs his own (non-DNS) domain name service on his site www.cavebear.com. The site also includes notes from his time on the ICANN board (such as this one where they talk about redemption periods).

Duration:01:24:21

290: Rule of Thumbs

6/6/2019
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We spoke with Phillip Johnston (@mbeddedartistry) of Embedded Artistry about consulting, writing, and learning. In the Embedded Artistry welcome page, there is a list of Phillip’s favorite articles as well as his most popular articles. Some of Phillip’s favorites include: Embedded Rules of Thumb Improving SW with 5 LW Processes Learning from the Boeing 737 MAX saga We also talked about code reviews and some best practices. The Embedded Artistry newsletter is a good way to keep up with...

Duration:01:13:52

289: Stamping HORSE on Zebras

5/30/2019
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Alicia Gibb (@pipix) joined Elecia to talk about open source hardware, the OSHW association (@ohsummit), using trademarks for quality control, and light-up LEGO blocks. Alicia is the editor and author of Building Open Source Hardware: DIY Manufacturing for Hackers and Makers. It is a handy resource for any manufacturing. Alicia is the director of the Blow Things Up Lab, part of the Atlas Institute at the University of Colorado Boulder. Light up LEGO blocks are available at Build...

Duration:01:14:50

288: You Got a Screen!

5/9/2019
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Christopher (@stoneymonster) and Elecia (@logicalelegance) discuss embedded systems education and project documentation. Elecia wrote about her love of notebooks on the https://www.embedded.fm/blog-index. yEd, for when you don’t have Visio. Asciiflow.com, for when you don’t have yEd (or you want to put diagrams in your comments) We talked about many different documents and tried to note design vs implementation, product vs engineering vs user, and why we wanted them. We didn’t mention...

Duration:01:03:43

187: Self-Driving Arm (Repeat)

5/2/2019
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Crossing machine intelligence, robotics, and medicine, Patrick Pilarski (@patrickpilarski) is working on smart prosthetic limbs. Build your own learning robot references: Weka Data Mining Software in Java for getting to know your data, OpenIA Gym for understanding reinforcement learning algorithms, Robotis Servos for the robot (AX is the lower priced line), and five lines of code: Patrick even made us a file (with comments and everything!). Once done, you can enter the Cybathlon. (Or...

Duration:01:12:00

287: Joke With No Punchline

4/25/2019
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Kate Compton (@GalaxyKate) spoke with us about casual creators, Twitter bots done cheap and quick, and the creativity that is within each of us. Kate’s website is galaxykate.com. Her Phd dissertation defense is interesting, see it on youtube.com. She is joining UCSC’s CROSS to do more work on casual creators and open source software. (We talked to Carlos Maltzan, the head of CROSS in 285: A Chicken Getting to the Other Side.) Tracery is an open source story generator using a specific...

Duration:01:21:36

286: Twenty Cans of Gas

4/18/2019
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Colin O’Flynn (@colinoflynn) spoke with us about security research, power analysis, and hotdogs. Colin’s company is NewAE and you can see his Introduction to Side-Channel Power Analysis video as an intro to his training course. Or you can buy your own ChipWhisperer and go through his extensive tutorials on the wiki pages. ChipWhisperer on Hackaday ColinOFlynn.com Some FPGA resource mentioned: Fpga4fun.com TinyFpga.com MyHdl.org (Python!)

Duration:01:00:11

285: A Chicken Getting to the Other Side

4/11/2019
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Carlos Maltzahn joined us to talk about graduate studies in open source software, research incubators, and how software development tools can be used to aid the reproduction of scientific results. Carlos is the founder and director of the Center for Research in Open Source Software (CROSS). He is also an adjunct professor of computer science and engineering at UC Santa Cruz. Some projects we spoke about: Jeff LeFevre — Skyhook: using programmable storage in Ceph to make Postgres and other...

Duration:01:13:59

284: Honking Big Asparagus

4/4/2019
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Ori Bernstein (@oribernstein) joined us to talk about the dielectric constants of foods, reflective energy steering, and smart microwaves. Elecia got a little silly. Ori works at Level Hot Pantry for more about the smart microwave, check out his !!ConWest talk. Ori has a github and personal site. EMSL papadum testing (where our thumbnail came from, with permission) Hackaday explained recently why grapes explode Short intro to how a microwave works

Duration:01:12:46

283: Flippendo Is Kind of a Swirly

3/28/2019
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Jennifer Wang (@jenbuilds) spoke with us about machine learning, magic wands, and getting into hardware. For more detail about her magic wand build, you can see Jen’s Hackaday SuperCon talk or her !!ConWest talk. The github repo is well documented with pointers to slides from her SuperCon talk and an HTML version of her Jupyter notebook. Check out this good introduction to machine learning from scikit-learn. It was their choosing the right estimator infographic we were looking at. (Elecia...

Duration:01:07:17

282: Tin Can Through a Wet Noodle

3/21/2019
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We spoke with Laughlin Barker of OpenROV (@OpenROV) about underwater drones, underwater navigation, underwater exploration of the Antarctic, and extraordinarily large (underwater) jellyfish. Watch this video of a Trident ROV being eaten by a shark… yes, you get to see the inside of a shark. S.E.E. Initiative: Science Exploration Education from National Geographic Laughlin left us with a coupon code for the Trident ROV. Please remember to invite us along on your ROV’ing.

Duration:01:15:45

281: Tame Geek

3/14/2019
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Combining a love of engineering with a love of words, Jenny List (@Jenny_Alto) is a contributing editor at Hackaday (@Hackaday). Jenny’s writing at Hackaday including Debunking the Drone Versus Plane Hysteria and Ooops, Did We Just Close An Airport Over a UFO Sighting? Previously Jenny worked for Oxford English Press working on computational linguistics software. While there she wrote post about the word “hacker”. Elecia has been secretly dreaming of being a lexicographer since reading...

Duration:01:08:57

280: Reginald P. Theodore Johnson

3/7/2019
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Chris (@stoneymonster) and Elecia (@logicalelegance) talk about design patterns, conferences, and Molotov cocktails. Wrapper / Decorator / Facade Observer aka subscriber/publisher (caveat) Delegation and Dependency Injection Model View Controller (very important if somewhat dated UI pattern) PyFlakes is a static Python checker KiCAD Conference is in Chicago on April 26-27, 2019 BangBangConWest 2019 is over but the videos will be up soon including the one Elecia noted about liking...

Duration:01:00:31

162: I Am a Boomerang Enthusiast (Repeat)

2/28/2019
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Valve's Alan Yates (@vk2zay) spoke with us about the science and technology of virtual reality. Elecia looked at the iFixIt Teardown of the HTC Vive system as she was unwilling to take apart Christopher's system. Alan shared some of his other favorite reverse engineering efforts: Doc OK’s Lighthouse videos, documentation on github by nairol, and a blog by Trammell Hudson. Alan's sensor circuit diagrams were on twitter: SparkleTree sensor circuit (think simplified) and the...

Duration:01:21:37

279: Top Pedant

2/21/2019
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Patrick Yeon (@patyeon) spoke with us about nonprofit spaceships then asked our opinions about embedded software. Pat is working for something something nonprofit space something something. To fill in some of the blanks, apply for a job on NonprofitSpaceship.org. Pat was previously on episode 153: Space Nerf Gun when we talked about cost-optimized satellites. We talked about several books: Turn the Ship Around! A True Story of Turning Followers into Leaders by L. David Marquet Managers...

Duration:01:11:11

278: Bricks’ Batteries Last Forever

2/14/2019
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Matthew Liberty (@mliberty1) shared good advice for lowering power. We talk about different ways to measure current (Matt has a nice write-up) and things software can do to decrease power consumption. Sleeping is critical, of course, as is choosing your clock speed and setting the GPIOs to good states. Everything is fine until you start getting into the microamps, then your multimeter measurements may start to fail you. (EEvblog explains why in his uCurrent intro.) Eventually, you may want...

Duration:01:06:04

277: The Sport of Kings

2/7/2019
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Jie Qi (@qijie) spoke with us about making paper-based electronics (@Chibitronics) and learning about patent law (via @Patentpandas). Jie Qi is the founder of Chibitronics, a crafting electronics platform that uses paper and stickers to create (and teach) circuits. Building the company and working on electronics-filled pop-up books led to the realization that patent law does apply to open source maker-type companies. She started PatentPandas.org to share what she’s learned. Jie is not the...

Duration:01:16:37