[#6] ESP32 on Zephyr OS: Custom Device Driver [Part 6]

[@thepullupresistor]

Nearly a year and a half has passed since I uploaded my last video tutorial on KZbin. This long delay was mostly due to work, family commitments and some health issues. Please don't worry, I'm fine, just busy. I've been really happy to receive encouragements and requests to continue making more tutorials from so many of you, but I also feel bad for leaving the Zephyr/ESP32 series undone in the middle of the driver development mini-series. Sorry to all of you who have been patiently waiting for a follow-up! It seems that time has caught up with me, and with the release of Zephyr v4.0, there is a new stepper driver API and implementation for the Darlington transistor motor driver board that I used as an example in video 6. In the light of these developments, my half-finished draft content for videos 7 and 8 is no longer relevant and I have decided that I will not try to make those episodes anymore. I'm truly sorry for the many of you who have been awaiting the follow-ups! Apart from getting comfortable with the Devicetree model, I think the macro-magic involved in making Zephyr drivers is a major barrier to many hobbyist embedded developers (like me). Maybe I'll return to this in the future, but no promises. Phew! That was a big weight off my shoulders :-) Going forward, I do want to get back to making tutorials, but I have yet to decide on a project. Hopefully it will happen sooner rather than later. Also, I have just signed-up for an account at Bluesky, so I'll try to be better at providing more frequent posts and updates there. Would love to get to know more people and chat about embedded development on what seems to be a very promising social media platform. You can find me here on Bluesky: bsky.app/profile/pullupresistor.com Thanks again for reading this post, and my apologies again for letting you down on the Zephyr driver series.

[@roronoazoro8349]

Just finished this video and was looking for the next part. Glad to know you are okay. Please continue this series if you can make some time. This will help a lot.

[@SandhanSarma]

The series is so informative, I have been waiting for Part 7 and many more that are yet to come.

[@derrickkwon2232]

plz keep making this video series. This is really helpful.

[@thepullupresistor]

Thank you for your feedback. I hope to get back to making more videos in 2024.

[@mrizky099]

I've just started with Zephyr RTOS. I'm glad that I found the tutorial series about Zephyr on this channel. I've been following the whole series using a different board, STM32WB55 from WeAct, and it is still working. I learned a lot from this tutorial, especially how to see and fix errors. Really, thank you very much.

[@thepullupresistor]

Great to hear that you found the material useful also on other platforms. I've also found myself using more and more STM32 parts for my project, but I haven't tried running Zephyr on it yet. That is definitely something I want to try now after your comment! Thank you!

You're such a good instructor! Thank you so much but we want more frequent zephyr os videos, don't be long ☺

[@GabeShaikh]

I am really looking forward to the next chapters! Also, a video on the ADC with single-shot and continuous sampling to DMA would be really appreciated!

[@thepullupresistor]

Thank you for the encouragement. I've been tied up with other things for the last few months, and I want the next chapter to make the Zephyr C macro "magic" easily digestible for everyone so I'm still working out the best way to illustrate that. It will be coming :-)

[@IanHai666]

The best video I have ever seen about Zephyr

[@thepullupresistor]

Thank you so much, I'm glad you found it useful :-)

[@luizab89]

Thank you for your content on Zephyr. I learned a lot. It was very didactic and well constructed. I hope you find time to continue with your channel. I'm trying to work with various types of sensors here.

[@thepullupresistor]

Glad to hear that you found the videos useful. Good luck with your sensor projects!

[@supercurioTube]

I've just watched your whole series so far, as a Zephyr and embedded development beginner and it has been absolutely fantastic! Thank you so much ☺ I'm also going through the Nordic Developer Academy which covers the same concepts but the way you show and explain works so much better for me. I hope you'll have the opportunity to continue.

[@thepullupresistor]

Thank you for such wonderful feedback. I'm very happy that you found the videos useful. I will definitely continue with more Zephyr videos, but have been sidetracked with some other projects for the time being...

[@Enfiros]

Very well done, one of the best tutorials ive seen online

[@jeffhj68]

Great video to understand Zephyr device driver, Thanks for making such a nice tutorial.

[@zhenghuilee9172]

The video series are really helpful, I'm looking forward to the next chapters.

[@thepullupresistor]

Thank you! Working on the next video now, so fingers crossed :-)

[@gianlucalocri]

Hi! new subscriber here, just started with zephyr! Your videos are a real goldmine! I'm looking forward to the next chapters hoping you can find some time to continue with this kind of content!

[@thepullupresistor]

Hi @gianlucalocri Thank you very much for your praise, it makes me really happy to know that people find these videos useful. Unfortunately, due to other commitments and the release of Zephyr 4.0 now including a stepper motor driver API and driver implementations including the Darlington driver board I used, I've decided not to continue this particular series. You can see a longer explanation in the pinned comment on top of this video. Again, really sorry about leaving you hanging and disappointing you!

[@philippsteiner1987]

Very useful video! Please keep on with your extraordinary tutorials!

[@thepullupresistor]

Thank you very much for your kind words.

[@ami6packs]

Great content. Absolutely loved it. Please make a video on can bus

[@thepullupresistor]

Thank you, I'm glad you liked it. I haven't got any plans for CAN bus at the moment, but I'll be sure to keep it in mind. Thank you for the suggestion.

[@larsfagerbakke2140]

Very informative video!

[@robothane]

this was very well recorded lesson. But we want the next ones please. 🥺

[@thepullupresistor]

Hi @robothane Thank you very much for your kind works. Unfortunately, due to other commitments and the release of Zephyr 4.0 now including a stepper motor driver API and driver implementations including the Darlington driver board I used, I've decided not to continue this particular series. You can see a longer explanation in the pinned comment on top of this video. Again, really sorry about leaving you hanging and disappointing you!

[@akshaynk130]

Great content and great explanation. Waiting for next videos. I am eager to see the driver and app seperation 😁

[@thepullupresistor]

Thank you for your kind words and hope you will like the future video on driver and app separation as well (it will be video #8).

[@sametbrhan]

It is a great video. Pls keep making zephyr series. And also can you focus on connectivity topics, such as a BLE example?

[@thepullupresistor]

@sametbrhan Thank you very much! Sorry for taking so long to get back to you, and with bad new too boot... Unfortunately, due to other commitments and the release of Zephyr 4.0 now including a stepper motor driver API and driver implementations including the Darlington driver board I used, I've decided not to continue this particular series. You can see a longer explanation in the pinned comment on top of this video. Again, really sorry about leaving you hanging and disappointing you!

[@sametbrhan]

@@thepullupresistor No problem, I stopped learning Zephyr months ago.

[@dalelim8734]

Great lessons!!. I would like request lesson for UART with zephyr.

[@thepullupresistor]

Thank you for your feedback and your request. Is there anything in particular around UART with Zephyr you are most interested in?

[@scruper]

Great lessons. Thank you !!!

[@nicoladellino8124]

Very useful video, THX.

[@hj3028]

Great work!

[@thepullupresistor]

Thank you very much!

[@chiao9103]

can i ask you how to apply an online source file on esp32 with zephyr?

[@roldanmarco1856]

Waiting for the next chapters

[@thepullupresistor]

Hi @roldanmarco1856. I'm very sorry to disappoint you, but due to my other commitments and the release of Zephyr 4.0 now including a stepper motor driver API and driver implementations including the Darlington driver board I used, I've decided not to continue this particular series. You can see a longer explanation in the pinned comment on top of this video. Again, really sorry about leaving you hanging and disappointing you!

[@vacagonzalo]

great content!

[@shyampatel8622]

Request for I2C and SPI with Zephyr

[@thepullupresistor]

Thank you for your request! I don't have any plans right now for I2C and SPI, but I will certainly keep it in mind.