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Introduction to ROS Part 9: Launch Files | Teaser

November 25, 2025 at 5:41 PM

Shawn Hymel

@shawnhymel.bsky.social

We hosted a Ghibli watch party last night with some friends (we watched My Neighbor Totoro and Howl’s Moving Castle). I made okonomiyaki, which I haven’t done since college. I even found vegetarian substitutes for everything, and it turned out great ❤️

November 22, 2025 at 3:59 PM

Shawn Hymel

@shawnhymel.bsky.social

Time for another #ROS video! In part 9, I cover launch files in both #Python and #XML. ROS 2 offers a slick launch system to handle spinning up your nodes (with parameters). Check it out!
👇
www.youtube.com/watch?v=nVZJ...

#robotics #programming #ros2

What is MQTT? An Introduction to the Lightweight IoT Messaging Protocol - Shawn Hymel

November 20, 2025 at 3:46 PM

Shawn Hymel

@shawnhymel.bsky.social

MQTT is a lightweight messaging protocol widely used in #IoT systems. It was originally designed for monitoring oil pipelines over low-bandwidth, unreliable satellite links. Check out my latest blog post and video if you want to learn more about #MQTT!
👇
shawnhymel.com/3046/what-is...

If you’ve worked with Internet of Things (IoT) devices, you’ve probably come MQTT. Short for Message Queuing Telemetry Transport, MQTT is one of the most

Discrete Mechatronic | Delta Track

November 18, 2025 at 3:39 PM

Shawn Hymel

@shawnhymel.bsky.social

If you're interested in #robotics and #AI research, check out this impressively low-cost leader arm on Kickstarter (useful for collecting training data). The creator invented a new type of magnetic encoder to make it happen! www.kickstarter.com/projects/del...

Compact, low-cost, six-axis, passive leader arm.

www.kickstarter.com

November 17, 2025 at 4:11 PM

Shawn Hymel

@shawnhymel.bsky.social

Time for another #ROS video! In the 8th episode, I cover parameters and how to use them in nodes. Check it out!
👇👇👇
www.youtube.com/watch?v=-Thr...

#robotics #programming @openrobotics.bsky.social

Introduction to ROS Part 8: Using Parameters to Configure ROS 2 Nodes | DigiKey

Embedded Rust Workshop: Reflections from Hackaday Supercon - Shawn Hymel

November 13, 2025 at 4:05 PM

Shawn Hymel

@shawnhymel.bsky.social

At @hackadayofficial.bsky.social #Supercon this year, I gave a workshop on embedded #Rust. Some loved the language, some didn't, but everyone enjoyed the experience. Check out my latest blog for a full tutorial + code along with my thoughts on #embedded Rust: shawnhymel.com/3042/embedde...

Every November, hundreds of engineers, makers, and hardware hackers converge in Pasadena, California for Hackaday's annual Supercon, a three-day celebration

What Is Transport Layer Security (TLS)? - Shawn Hymel

November 11, 2025 at 11:35 PM

Shawn Hymel

@shawnhymel.bsky.social

Writing notes by hand has been proven to increase learning and retention over e.g. typing/recording a lecture [Van der Meer & Van der Weel, 2017]. It forces us to slow down and actively engage with the material, as we often need to summarize/paraphrase. #education #tech

November 10, 2025 at 6:26 PM

Shawn Hymel

@shawnhymel.bsky.social

New #ROS video 📺 ROS messages require strongly typed, explicit types for the data being passed back and forth. While it comes with some message types out of the box, you can define your own with interfaces.
👇
www.youtube.com/watch?v=INpG...

#robotics #programming #embedded @openrobotics.bsky.social

November 7, 2025 at 8:08 PM

Shawn Hymel

@shawnhymel.bsky.social

I had an amazing time at #Supercon this past weekend 😍 The workshops and talks were, as always, top-notch, and I certainly enjoyed making new friends and meeting old ones. Keep doing excellent work, @hackaday-feed.bsky.social ❤️

November 6, 2025 at 2:17 PM

Shawn Hymel

@shawnhymel.bsky.social

Transport Layer Security (#TLS) is the backbone of secure communication across the internet, and it's crucial for #IoT device development, too. In my latest video and blog post, I break down how TLS works.
👇
shawnhymel.com/3000/what-is...

#CyberSecurity #InfoSec #embedded #programming #SSL

When you connect to a website over HTTPS, send an email, or push code to GitHub, you’re relying on a cryptographic protocol called Transport Layer Security

Introduction to ROS Part 6: Services, Requests, and Responses with C++ | DigiKey

November 4, 2025 at 5:27 PM

Shawn Hymel

@shawnhymel.bsky.social

Building the crommeter! All 3 worked and performed the blinky test 😁 There are some mistakes on the board that will be fixed for v02. The RP2350 Stamp worked great—thank you, @arturo182.bsky.social ❤️

You can find the code and #PCB files here: github.com/ShawnHymel/c... #maker #RaspberryPiPico

November 3, 2025 at 3:46 PM

Shawn Hymel

@shawnhymel.bsky.social

Happy Halloween! 🎃 If anyone is at #Supercon, I’ll be dressed as Captain Hammer.

“It's not enough to bash in heads, you've got to bash in minds!”

October 31, 2025 at 4:08 PM

Shawn Hymel

@shawnhymel.bsky.social

New issue of #Make Magazine is out! If you’re looking for a primer on #ROS, definitely check it out 🤖

www.makershed.com/products/mak...

#maker #robotics #programming

October 30, 2025 at 11:47 PM

Shawn Hymel

@shawnhymel.bsky.social

New #ROS video out 📺📺📺 I revisit services (requests and responses) but with C++ this time! Check it out if you're curious about ROS.
👇👇👇
www.youtube.com/watch?v=zuwU...

#robotics #programming #embedded #cpp @openrobotics.bsky.social

Deep Learning on Microcontrollers: The State of Embedded ML in 2025 - Shawn Hymel

October 30, 2025 at 2:56 PM

Shawn Hymel

@shawnhymel.bsky.social

Running deep learning models on microcontrollers has gained mainstream popularity among silicon vendors and #firmware developers. My latest article examines the state of the #TinyML runtime offerings in 2025.
👇👇👇
shawnhymel.com/2994/deep-le...

#microcontroller #embedded #AI #MachineLearning

Edge AI has been gaining traction, and deploying deep learning models on microcontrollers (MCUs) has evolved from a niche experiment to a mainstream

Introduction to ROS Part 5: Services, Requests, and Responses with Python | DigiKey

October 28, 2025 at 3:03 PM

Shawn Hymel

@shawnhymel.bsky.social

New toy! I’m interested to see what the dev experience is like. #Arduino

October 27, 2025 at 10:25 PM

Shawn Hymel

@shawnhymel.bsky.social

New #ROS video is out today! While topics are great for the pub/sub model, ROS also supports a client/server model with "services." Check out my tutorial creating custom client and server nodes in #Python:

www.youtube.com/watch?v=lxg1...

#robotics #programming #embedded @openrobotics.bsky.social

Intro to ROS Part 4: Nodes, Topics, Publishers, and Subscribers with C++ | DigiKey

October 23, 2025 at 2:25 PM

Shawn Hymel

@shawnhymel.bsky.social

New tutorial and video! I show how to build an HTTP client for the #ESP32 using low-level BSD sockets and ESP-IDF: no high-level libraries, just the core concepts so you can see how it all works.
👇👇👇
shawnhymel.com/2983/esp32-h...

#IoT #embedded #programming

October 21, 2025 at 2:12 PM

Shawn Hymel

@shawnhymel.bsky.social

Time for another #ROS video 📺 I revisit nodes, topics, publishers, and subscribers...but with C++ this time. Check it out!
👇👇👇
www.youtube.com/watch?v=g4iY...

#robotics #Cpp #programming @openrobotics.bsky.social

How to Get a Job in Edge AI: Essential Skills for 2025 - Shawn Hymel

October 20, 2025 at 2:22 PM

Shawn Hymel

@shawnhymel.bsky.social

"What skills do I need for edge AI?" is a question I often get. #EdgeAI requires a unique blend of #ML math, #Python for training/optimization, and #embedded or #mobile development. Check out my full blog post to learn more (and recommended courses):
👇
shawnhymel.com/2976/how-to-...

#TinyML

Edge AI refers to artificial intelligence that runs directly on devices at the "edge" of the network: things like smartphones, smart cameras, industrial