ESP32 Meet-up - FreeRtos

[@vdfam]

Well done, sir. There aren't many videos talking about how-to program ESP32 with ESP-IDF. The explanation is easy understandable! Thank you!

[@muhambykar]

Đại Phạm hi, ı use esp idf for a long time, and decided to creare a channel to shoot video series of esp idf. The first reason of this as you said on youtube, I have could not a proper source and my learning kept long. You can subscribe my channel and follow my video series! kzbin.info/www/bejne/eqDGpYqlra6Ufpo

[@niyaziugur]

This video has everything about FreeRTOS with a specific things of ESP32. Well done. Thanks.

[@tdtrecordsmusic]

This is GOLD. I was just reading that exact book! while researching some topics I stumbled into this vid. WOW, I am thankful. I was wishing for an overview/summary all along // How it will eventually fit together !! U mentioned wanting critique for level of depth / over-all impressions : I feel like your pace and level of depth was just right. To get to this level of coding a person cannot skip C syntax. scope . mem management. setting build env .. etc .. AND if you wished to teach these topics that is another vid. IOW(in other words) >> I thank you for not holding back and NOT dumbing it down

[@ghazni101]

Thanks for putting this gem on KZbin

[@CuriousCyclist]

Thanks for recording and uploading this video. Much appreciated.

[@siowjerhan]

A lot of tutorial I know of prefers Arduino port of the IDF because it's easier to use. To truly appreciate the effort put into the documentation by Espressif and to truly unleash the potential of ESP32 I think it would be great if you could include ESP-Mesh and deep sleep into your course, as those are the things still lacking in Arduino port (last I checked one of the deep sleep mode is not available in Arduino port). Anyway, thanks for this super-helpful explanation and keep up the good work. I have been struggling with the IDF myself for the past few months as well, trying to wrap my head around a lot of unfamiliar concept. It is certainly amazing to know there are people out there willing to share their learning experience.

[@mairswartz]

Siow Jer Han Thank you for your kind words I don’t currently have anything on ESP-mesh but I do have quite a bit of content in my course on sleep and deep sleep check it out on learnesp32.com

[@rinikaravinthv8490]

Really enjoyed it. Thanks for uploading.

[@TekWit]

This tutorial is so great !!!!!!!!!! I learn something new each time !!

[@mairswartz]

Awesome! Thank you!

[@nonamesareavailabe]

Great video, one of the best. Any chance of sharing the MQTT example?

[@georgegu3374]

start with task is highly recommanded.

[@youreale]

Very useful talk and content. Thanks! Proudly subscribed.

[@mairswartz]

Welcome aboard!

[@junkmauler]

I would like more information on using ESP-IDF, along with Visual Studio Code, the initial setup of getting all working together.

[@mairswartz]

Hi Joseph, Check out learnesp32.com first few videos are free and cover exactly what you are asking

[@junkmauler]

@@mairswartz I found them right after I posted this comment, however it seems the tutorial is a bit dated. I have ESP tools installed, but when I go to make a project using create-esp32-app and launch Visual Studio Code it doesn't even know how to find the header stdio.h, I've checked and my paths are correct and looked at the cpp properties file which appears to be including the lib folder.. I'm at a loss as to why it doesn't see it.

[@mairswartz]

@@junkmauler did you install the idf with the installation wizard? try disabling the idf tools. Take a look at the top of .vscode/c_cpp_properties.json ensure the IDF_PATHS and IDF_TOOLS paths are correct

[@junkmauler]

@@mairswartz The IDF tools and PATH are correct, I'm still not sure what went wrong. I will try installing again..

[@junkmauler]

@@mairswartz The IDE is completing if I do #include

[@beantaxi]

(first?) Thank you Mair! I really enjoyed this here in the USA. I have a little ESP32 side project with some friends, and can't wait to tell them about JTag/OCD and claim their esteem! Quick question ... have you done much with using an ESP32 as a server or AP for other ESP32s, eg via Wifi or ESPNow? It's a fun (and perhaps even useful) idea but I'm curious about how reliable it is, or if you'd spend all your time dealing with connection failures and go back to vanilla Wifi anyway. Thanks again for a great video! If your meetup has posted any others, feel free to share links and I'll be sure to check those out too,

[@mairswartz]

I have done some work using the ESP32 as a server and as an AP. its pretty solid -stable once you get it up and running. There are a few moving parts but... I have a coarse coming soon that explains it in detail. If you like, you can sign up at www.learnesp32.com/ to get informed when its ready

[@julianmcfarlane8445]

Thanks, that got me started.

[@michaelkremer3146]

Hi, I have a problem with ADC and DAC. When they run together in one task, they affect each other. Can someone tell me where the problem could be?

[@shaivalnagarsheth3257]

ESP32 lib dependency working on Arduino but not on ESP-IDF framework? Please tell how to use the readymade library in Arduino into ESP-IDF

[@ahmadsadiq40]

Hello sir . I got many errros in vs code when i build the code. Freertos erros many time. Can you please help me to solve it?

[@laurarive8642]

hello! I want too use the espeye with aws and tensorflow, but I have never use esp32. I don't how to start programming... Can you help me how to start? I view somelse programing wirh freeROTS and anothers use MQTT. Really I'm felt lost. I didn't see some similar in the demo of your course learnesp32

[@mairswartz]

Hi Laura, Its best to take these things one step at a time. first ensure you can program in c. once you know that you can learn the IDF with my course which also covers MQTT. then AWS, then tensorflow. I don't cover tensorflow or AWS at this time but there are other resources that will cover those. It's a bit of a learning curve but you can do it.

[@oswevega2939]

thanks for the explanations. to the point. really ! thanks.

[@nukiduki2]

Very well done!

[@BryanChance]

I learned a bunch! thank you

[@barchilsaid3001]

where is my Pitza?

[@idlisambar]

I'm just so curious about this stuff ahhah thanks for the video

[@mairswartz]

Any time!

[@usrrsr]

Can you share flowchart 40:17

[@mairswartz]

github.com/Mair/FreeRtos-meetup/blob/master/FreeRtos%20intercommunication%20decision%20tree%20.jpeg

[@BrknSzn]

1:02:31 a little heart attack. God bless you. Super video though, thank you.

[@mairswartz]

LOL. Bless you

[@undercrackers56]

There is something I don't understand about embedded recruitment. Companies would not hire a software engineer to design their PCBs, so why do they insist on recruiting electronics engineers to write substantial embedded applications?

[@mairswartz]

You make a very good point. My guess is that what embedded devs do is a bit esoteric in the eyes of recurutors. I.e. they have no clue what embedded is.

[@excite236]

Good question, Electronics Engineers first design the hardware then work on low-level stuff, so they know how hardware works at the register level, interfaces, write drivers from reading datasheets. If there are issues with hardware then Software Engineer wouldn't know how to find them. Writing computer software is not the same as writing embedded firmware. Also, a Software Engineering degree is not the same as Computer Science although many courses do overlap, both work on different levels. There are videos on yt explaining differences.

[@mekatrol]

Did you say a word is half a byte? If so, a nibble is half a byte and a word is two bytes. So in you example, if your stack width is 16 bits (a word) you allocated 2048 words (or 4096 bytes)...

[@mairswartz]

Hi, seems I caused a bit of confusion there. sorry about that. according to ESP-IDF docs docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/system/freertos.html#freertos the size is actually in bytes not words

[@ytubeleo]

@@mairswartz Thanks for clearing that up! You should maybe add one of those correction pop-up annotations over the video at that point.

[@mairswartz]

@mekatrol. I edit that section out

[@steved1122]

Very good job!!!!!

[@iamcalledusman]

Superb !

[@himanshugour7250]

51:00 sema4

[@syeduthman]

Yummyy... I want pizza too.. hahahah

[@TomSky00]

really? you deleted my question?

[@mairswartz]

@@TomSky00 sorry, what was the question

[@kellyanderson7115]

Scoped Mutex Class/wrapper makes take/give much nicer. class ScopedMutex { public: ScopedMutex(SemaphoreHandle_t &m) : _mutex(m) { xSemaphoreTake(m, portMAX_DELAY); } ~ScopedMutex() { xSemaphoreGive(_mutex); } private: SemaphoreHandle_t &_mutex; };