Run Linux on ESP32 - how to run the Linux kernel on an ESP32 

Indeed. Oh, the old time of running Linux on a 486...

and without apps, really any useful hardware and connectivity and no real world use case :D

@@benjaminshtark5977well yeah you say that now until there are applications and use cases that make this a huge advancement for iot projects

Just send us the prepared clean image

Bro, remind me to make a video on software coupling! I am a bit overworked at the moment...email me at tamhan aeht tamoggemon dot com!

I found this to be most interesting.

Thanks man!

THanks man!

Thank you so much for talking back! AFAIK, this could also work on the old SoC, as it is also XTENSA based!

@@MrTamhan This depends on whether the cross compiler is optimized for the LX6 microprocessor or the LX7 microprocessor that is featured in the S2 and S3 SoCs. The C3 and H2 SoCs use RISC-V architecture so would likely need a different cross compiler to work.

Hi, thank you so much for talking back! Tam

This is really creating gold out of nothing! hehehhe Top tier work!

You can develop a small scale web server application that will run on this system.

I'm pretty sure you can just solder an SD card directly to the ESP32 SPI pins and use it like any other SPI device.

@@DisorderedArray Yes, but it need to be supported by the Linux. Here is the question

Hi, honestly I am not sure. I will need to look into this...

@@MrTamhan It will be great add on to the project. Thanks a lot.

Hi, thank you for talking back! From my point of view, in theory, you could run a small editor or something...but the issue is how you get the data out to the screen...

Hello, IMHO the true use case is to reduce software coupling. I am not sure if I did a video on this yet, if not I will soon. Or find the old APress book on Event Driven Programming, from around 2005 or so I think by Ted Faison. Thanks again for talking back!

Thank you so much for talking back! This probably is mainly for some kind of MSR job, or a C++ based job...where it eliminates coupling. I need to make a video on software coupling one day...

@@Механизм-ж9я thanks man. But the ESP32 is much more low power!

The smallest computer I have with Linux is a Turris Omnia router. So if you need to implement a router or other large software stack it makes a lot of sense with Linux. If you just need multitasking you can have FreeRTOS on your ESP32.

I was looking for something like this to run the hyperion library without buying a raspberry pi. I may try this out :)

@@dankaufman8900 I don’t know what that is.

Austrian dude, my friend. Syrian Christian dad, plus a bit ill...plus weird lighting...

Yes man, they went far! It is always a pleasure to see them!

Hi, sorry for being slow. Please look at www.olimex.com/Products/IoT/ESP32-S3/ESP32-S3-DevKit-Lipo/open-source-hardware

Bro said let's install docker 🤣 This is just a poc that's shows that "running" linux kernel is possible by emulating a risc-v proc but it won't do anything. This chip wasn't made for this.

​@@justbendev2324 old aqara iot hub has esp32 chip and is running linux on it no problems.

Hi, thank you for talking back. I am not sure if there is one for Linux and Python, but Espressif just announced one for its IDF environment

It is my pleasure! Please stay around! I try to make more interesting videos...

Hello, thank you so much for the praise! I hope that it works for you! If not, the Olimex seem to already be back from their vacation!

Thanks man! All the best of luck!

Hello, thank you so much for the praise. Sadly, I do not think this will work for the ESP32 RISCV version - the kernel used is for the XTENSA only! Tam

Hello, this is the one I used. Sorry, I am not really sure if it works on smaller units - but given that this unit already has almost no memory left, I do not think a smaller SoC can be efficiently used.

Hello, is this Linux or generic ESP_IDF? Tam

Thanks man. But in fact, the real question is: why is Linux now so big...

Thank you, my friend. I am honoured that you like my work

Sorry for my slow reply. Yes, this does not use the RISC V emulator!

Hello, sorry for being slow in talking back here. AFAIK, this is an XTENSA port...not sure if it has an MMU

Thank you so much for talking back and being concerned, I really appreciate it. But in my case it is hopeless. I have multiple capital companies in Hungary and Slovakia, and so my address is in the public domain via the company registers. Also, if you ever want to come and visit for a drink -> tamhan@tamoggemon.com and we can hang out!

Hi, this is the one I used: www.olimex.com/Products/IoT/ESP32-S3/ESP32-S3-DevKit-Lipo/open-source-hardware

Hi, they are actually thermally quite stable - I run some demanding FFT stuff for a client in series production, in a hot environmewnt (cigar ashtray) and we never had an issue so far. Thanks for talking back also! Tam

Thanks for talking back, my friend!

Hello, thank you so much for talking back! IMHO, this works well with most C / C++ based payloads...one day, I need to make a video on software coupling. In the mean time, may I give you a book recommendation for a book which really helped me?

Thank you so much for talking back and being concerned, I really appreciate it. But in my case it is hopeless. I have multiple capital companies in Hungary and Slovakia, and so my address is in the public domain via the company registers. Also, if you ever want to come and visit for a drink -> tamhan@tamoggemon.com and we can hang out!

Thanks man!

Thanks man! Glad you like it!

If you are in the area, lets smoke one!

@@MrTamhan Thanks for the invite to smoke, but that's not my area. xD

No problem! If you ever are in the area, let us smoke! @@Seu_Lunga

any time! Friendly people are always welcome at my den. tamhan@tamoggemon.com for scheduling!!!!

Hello, thank you so much for talking back! I am kind of old fashioned ;)

Hello, thank you so much. And sorry for being slow in talking back!

Hi, sounds like a cool idea!

From the streets I come, my friend. Thank you so much for talking back.

Hello, sorry for my slow reply. Thank you so much for talking back!!! And thanks for the subscription!

perhaps, but on the other hand that's proprietary software and you'd need to learn how to use it

​@@ovrskr What on earth are you talking about? Docker is open-source, same as virtual-box. You will be done learning and compiled with the tiny bit that you need to compile Linux in docker long before your are done compiling on a VM. + you do not need to faff around with hardware passthrough since you can output the build files directly to the host machine.

@@BinderTronics both are VM's, its not a big difference in the end

@@ovrskr wrong again

@@ovrskr docker is NOT vm . You can think about docker as ... chroot on steroids

Hello, sorry for being slow. Please look at github.com/jcmvbkbc/esp32-linux-build

Hi Man, they are in the video. Can you do German? Then I can send you a writeup! ANd thanks for watching!

@@MrTamhan yes I can read German. Please do it. Thanks 👍

Hello, look here -> www.mikrocontroller.net/topic/559143

Thanks man! And please, stay around - lots of other videos coming up!

Thank you, my friend! Glad you like the channel!

Hi, thank you for talking back, and sorry for my slow reply. This is one of these projects where the reason is "so it is done" ;)

@@MrTamhan then well, ok.

Thank you for talking back, and sorry for being slow in responding!

Thanks man!

Thank you so much!

I need it desperately to run Edge with 100 tabs open

Hi, Windows no. Maybe Windows 3.1 or so, but no real version IMHO

Thank you so much for talking back!

Thank you so much for talking back and being concerned, I really appreciate it. But in my case it is hopeless. I have multiple capital companies in Hungary and Slovakia, and so my address is in the public domain via the company registers. Also, if you ever want to come and visit for a drink -> tamhan@tamoggemon.com and we can hang out!

@@MrTamhan since you didn't seem concerned yourself, i decided to make a joke.

Hi, no problem! I was not offended - and my offer of a drink was sincere! Tam

@@MrTamhan i think you should try common plantain, it might grow wild near you, tastes like mild spinach.

Bro I actually do cook quite a bit. So you motivate me to look at it... @@felderup

Yes man, old dude and hacking away at the keyboard...but it is now over 15 years old...and works like on day one

@@MrTamhan modern keyboards are nota like old ones ha ha ha

Yes, indeed ;)

Hello, pleasure to see a fellow author. May I ask what book you wrote?

@@MrTamhan I wrote the first embedded Linux book, in 2001. Embedded Linux: Hardware, Software, and Interfacing, ISBN 978-0672322266 Addison-Wesley, published in 2002. Sold 13K copies, translated into 5 languages. Back then, it was only possible to run Linux with busybox because 1M flash became available from Intel. Kernel 2.1.7 could fit, without modules, and busybox root filesystem in ~800K, leaving 200K for user files. I had a x86, PowerPC and StrongARM SBCs in the book. In today's dollars, that StrongARM board costs $3800. Things have changed so much in the past 22 years, Your ESP32 board is about $4. I've loved seeing the embedded Linux progress over the years: beaglebone, RPI, Android and now your work with ESP32. Thanks for scratching the "can it be done" itch.

Oh wow. I am honoured to see you here. If I can do anything which interests you, let me know. Also, if you ever want to write another book, I can get you a placement at a nice Euro publisher. Just email me at tamhan aeht tamoggemon dot com any time!

@@MrTamhan Thanks for the offers, I'll keep those in mind. I added you to my contacts, you can delete your reply with email if you want.

@@MrTamhan I think it would interesting to know the interrupt latency for your ESP32 kernel. However that requires writing a small kernel module, don't know if this easy nowadays.

He mentioned fairly early on about two versions - one with and one without wifi, and I think he ran with the with wifi version... so it would seem like you can at least still have wifi...

WiFi does work, I didn't try BT. ~2MB RAM of 8 is available right after the boot. Kernel configuration has cramfs, jffs2 and NFS support enabled (and yes, mounting NFS works). Nothing blocks enabling other file system drivers.

Hi, thank you so much for talking back. I try to keep the content interesting - hope you find value!

Thank you! Hope you like the channel, and sorry for my slow reply

@@MrTamhan I do. will try it this winter

Thank you! @@DanelonNicolas

Man, thanks for talking back. But do you really think that the US chips are safer? IMHO, in this field, you can only select WHO spies on you, not whether you get spied on or not...

Thanks man. I need to redo my mic setup, I know!

just speak more softly or fix the audio after you record it@@MrTamhan

@@CommanderBeefDev I will try. Can you suggest a program for audio maybe

The easiest free solution is Audacity, which is also FOSS and cross platform. Its great for small things. But if you use video editing software perhaps you can do something in there directly

For audio, only 2.5 things you need to take care of beforehand, rest can be fixed in post-production. 1. The mic shouldn't have heavily distorted frequency response curve (usually not a concern, even with cheap lavs) 2. The amplitudes should not clip for whichever output level you're working with (mic level 1mVpp or line level 1Vpp) 2.5. The ambient noise level is at least -20dB (better if -40dB) away from the gain of sound that you're trying to capture. Once you've taken care of these things, everything else can be tuned/tweaked in a DAW. I'd recommend davinci resolve's fairlight (free, feature rich, cross-platform, AI denoise, comes with the video editing software itself etc), but there are many good options. How much time and energy you'd wanna spend correcting/improving the audio is upto you (there's literally no ceiling to that). But given that your videos are going to convey information, and they're primarily not about entertainment/aesthetics, you shouldn't have to be too worried about that part. I see that you take feedback very positively, which I highly value as a growth-mindset trait. Hopefully it helps; all the best!

Where would you like to put it?

@@MrTamhan a Chinese website bilibili, where exists a large community of the embedded lovers.

Go go go, my friend. And sorry for my slow reply!

Hi, which ones do you mean?