If you’ve ever logged data to an SD card or saved files on a #microcontroller, you've probably used FatFs without realizing it. As I'm working on a port for it, I'm reminded what a great embedded #OpenSource project looks like. 👇 shawnhymel.com/3113/an-ode-... #embedded #programming #Arduino

Check out the latest edition of Elektor magazine! @edgeimpulse.com did a full guest takeover, and I talk about my fun #AI toaster project 😁 #embedded #maker #electronics

#FreeRTOS vs #Zephyr is something I hear a lot. The reality is that they're different tools for different jobs. I've written down some of my thoughts after using them both. 👇 shawnhymel.com/3106/zephyr-... #embedded #RTOS #programming #microcontroller

Final #ROS episode is out! I look at how to make ROS control actual, physical hardware. It usually involves creating separate programs to talk directly to the sensors and actuators. Check it out! 👇 www.youtube.com/watch?v=GIxo... #robotics #Arduino #programming @openrobotics.bsky.social

After 20 years in embedded systems, here are the 10 things I wish I knew when I started (#Arduino, hardware, debugging, timing, RTOS, and real projects). 👇 shawnhymel.com/3100/10-thin... #embedded #programming #microcontroller #rtos

Quintessential #Colorado 😜

Follow up to last week's #ROS video: this time we create a listener and demonstrate how the TF2 library works by making a follower #robot in turtlesim. Check it out! 👇 www.youtube.com/watch?v=4bW7... #robotics #Python #programming @openrobotics.bsky.social

I’m reading Cal Newport’s “Deep Work,” which is making me rethink my work habits. What are some of your favorite productivity tips? Check out my full blog post on the psychology of focus: 👇 shawnhymel.com/3095/how-int... #productivity #focus #programming #education

Learn how to set up a secure Mosquitto MQTT broker on Linux (from installation to TLS encryption) in my latest video! 👇 shawnhymel.com/3085/how-to-... #IoT #MQTT #Mosquitto #embedded

Looking for a #robotics and #AI engineering competition? Check out Intrinsic's "AI for Industry" Challenge! As it turns out, wiring and #electronics assembly is quite difficult for robots. You get the chance to solve it! www.intrinsic.ai/events/ai-fo... #physicalAI #engineering

Today is the day for getting this little bugger working 🦾 #robotics

Snagged this gem off eBay 😁 #FinalFantasy

App Lab for the new UNO Q can be quite limiting. If you want to use the more powerful command line (CLI) to transfer and run projects, check out my guide here: 👇 shawnhymel.com/3074/how-to-... #embedded #microcontroller #Linux #Python #maker @officialarduino.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 ❤️

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

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'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...

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

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...

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

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

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 ❤️

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

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

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!”

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

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

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

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

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

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

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

"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

Pippin taking a break in the leaves after a rousing round of fetch 🐶

If you are headed to @hackaday-feed.bsky.social #Supercon later this month and you've been curious about #Rust, check out my workshop! There are still seats available. You'll get a #RaspberryPiPico kit to take home and continue your embedded Rust journey 🦀 👇 hackaday.io/superconfere... #embedded

My latest tutorial is out! How to write a custom #WiFi driver from scratch on the #ESP32 using ESP-IDF. It involves a lot of event-driven code! 👇👇👇 shawnhymel.com/2967/esp32-c... #IoT #microcontroller #embedded #programming #firmware

New #ROS video out! In it, I walk through the process of creating custom publisher and subscriber nodes in Python to communicate over topics. Check it out! 👇👇👇 www.youtube.com/watch?v=9_Aa... #robotics #Python #programming @openrobotics.bsky.social

I'm just now learning about @meshtastic.org, an open-source project that uses #LoRa radios to create off-grid text networks. I wrote a blog post about it and ordered a @seeedstudio.com T1000-E to play with at @hackadayofficial.bsky.social #Supercon! shawnhymel.com/2962/what-is... #IoT #embedded

SHOW ME WHAT YOU GOT

Progress! #PCB #KiCad

My latest tutorial is out! How to use I2C on the #ESP32. I show how to talk to a real TMP102 sensor using #ESPIDF (and a virtual TMP105 sensor with #QEMU). 👇👇👇 shawnhymel.com/2954/esp32-h... #IoT #microcontroller #embedded #programming #firmware

It's been YEARS since I've done a board layout. It feels good to use these skills again! 💪 I'm making something fun for @hackaday-feed.bsky.social #Supercon 🤓 And of course, I have to use #KiCad 😁 #PCB #SAO #BadgeLife

New #ROS video out today! I go over the basics of topics and services with the command line in ROS 2. Check it out! 👇👇👇 www.youtube.com/watch?v=HTIc... #robotics #electronics #programming #embedded @openrobotics.bsky.social

Finally figured out how to do bare metal hardware interrupt in embedded #Rust 😅😅😅 I think I’m gonna stick with Embassy… #embedded #microcontroller #rp2350 #RaspberryPiPico

Kconfig is a powerful tool that's been around for a while, and many #embedded frameworks (including ESP-IDF) have adopted it for configuring components. Check out my tutorial and video to see how to use it for your #ESP32 projects! 👇 shawnhymel.com/2935/esp32-h... #IoT #programming

I'm excited to announce my next video series! If you've been following my feed, you probably know that I was playing around with #ROS. Well, here is the first video from all that learning and tinkering: 👇👇👇 www.youtube.com/watch?v=mjrx... #robot #robotics #embedded #programming #RaspberryPi

Choosing between a bare-metal approach and a real-time operating system (#RTOS) can be tricky. An RTOS is great for high complexity and strict timing, while simpler projects may benefit from a bare-metal superloop. 👇 shawnhymel.com/2928/when-to... #embedded #embeddedsystems #Zephyr #IoT

In #ESPIDF, `idf.py build` calls CMake under the hood. Ignoring Kconfig parameters, you can manually build #ESP32 projects with: cmake -DIDF_TARGET=esp32s3 -G "Ninja" -S . -B build/ cmake --build build/ Check out my full post: shawnhymel.com/2920/esp32-h... #IoT #embedded

I think I understand how the #RP2350 memory is mapped. If I missed something, let me know! #RaspberryPi #RaspberryPiPico

I think I've *finally* wrapped my head around the basic ownership and borrowing rules in #Rust. I put together a quick demo here: gist.github.com/ShawnHymel/e.... I know there are some esoteric rules I likely missed, but these should be the major ones. Let me know if I missed something! #programming