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Thanks for the video 😊

thx you're video helped me alot

can you please tell maximum distance of each node mcu from other ?

nice vid...I have 2 LoLin NodeMcu V3 boards that get recognized by PC (com 8) in this case, but my arduino IDE won't connect to board and times out waiting for packet header...any suggestions? they both do the same thing

Sir, what is the purpose of "processor" function? You passed the function along with other attributes to request->send_p. But inside HTML, it doesn't call this function. I also name my variable SliderVal in the main c++ code while inside HTML's updatesSlide PWM I name it SliderValue . So how both variables are linked together?

This would have been a great video if you had placed the code in the description. It just takes too long to type It out when all I came her for was how to get mac address

Anyone could fix the errors showed after press "mosquitto -v" command? This errors appear in minute 7:40. I already installed mosquitto in docke and i have this problem all the time and is headache becaus idk what to do...

Excellent tut brother... you are an outstanding patient explainer... greetings from Houston, Texas .... SUBSCRIBED ! 😊

If anyone else had trouble getting all the programs to work - before you drive yourself crazy I found the easiest thing to do was wipe out everything and reload a new operating system onto your Raspberry pi and reload the programs.

long but worth it. nice job!!

Lovely job, I am learning a lot. Thanks for publishing these!

10:26 - if you "deploy" the color change it updates on the dashboard

Nice job. Thank you!! FYI to anyone interested, I loaded Node-Red onto my Windows PC following the instructions on the Node-Red site. Not hard at all if you don't have a Raspberry Pi or just want to use a Windows machine.

Nice and informative. Thanks, Simon

I would like to extend your code.

this error came in my receiver code in esp-now receiver side C:\Users\Dell\AppData\Local\Temp\.arduinoIDE-unsaved2024229-4764-g6luht.bh7b7\sketch_mar29b\sketch_mar29b.ino: In function 'void setup()': C:\Users\Dell\AppData\Local\Temp\.arduinoIDE-unsaved2024229-4764-g6luht.bh7b7\sketch_mar29b\sketch_mar29b.ino:47:28: error: invalid conversion from 'void (*)(const uint8_t*, const uint8_t*, int)' {aka 'void (*)(const unsigned char*, const unsigned char*, int)'} to 'esp_now_recv_cb_t' {aka 'void (*)(const esp_now_recv_info*, const unsigned char*, int)'} [-fpermissive] 47 | esp_now_register_recv_cb(OnDataRecv); | ^~~~~~~~~~ | | | void (*)(const uint8_t*, const uint8_t*, int) {aka void (*)(const unsigned char*, const unsigned char*, int)} In file included from C:\Users\Dell\AppData\Local\Temp\.arduinoIDE-unsaved2024229-4764-g6luht.bh7b7\sketch_mar29b\sketch_mar29b.ino:1: C:\Users\Dell\AppData\Local\Arduino15\packages\esp32\tools\esp32-arduino-libs\idf-release_v5.1-3662303f31/esp32/include/esp_wifi/include/esp_now.h:156:54: note: initializing argument 1 of 'esp_err_t esp_now_register_recv_cb(esp_now_recv_cb_t)' 156 | esp_err_t esp_now_register_recv_cb(esp_now_recv_cb_t cb); | ~~~~~~~~~~~~~~~~~~^~ exit status 1 Compilation error: invalid conversion from 'void (*)(const uint8_t*, const uint8_t*, int)' {aka 'void (*)(const unsigned char*, const unsigned char*, int)'} to 'esp_now_recv_cb_t' {aka 'void (*)(const esp_now_recv_info*, const unsigned char*, int)'} [-fpermissive]

Thanks for assuming I'm less than knowledgeable on all of this detail. You're right to. Cheers, mate! (sub'd)

The amount of precise detail you put in was appreciated. Thanks, mate, from an old Aussie. (subscribed)

thanku so much

I did everything you did but got a dashboard full of No Results panes

I may of confused a few rows are not 🚫 connected columns are connected

Mate, we are learning with your videos four our college class here in Brazil, and we are loving every "brackets off, semicolon, enter" thanks for the amazing learning content

I was searching for now to do the and found several tutorials, all were exactly the same. Even the screen shots. Seems like one person (not sure who) developed this and several others are sharing it as their own.

Great little exercise. I really learned something today. Thanks.

I am 81 love your style and pace of instruction. That you make no assumptions on what the user knows about the topic already set you apart.

Thanks for another good video, Les. I watch all of them without commenting a lot of the time so thought I'd better let you know there is some life out here! Electronics and getting into micro-controllers help me keep my sanity during the lock down periods - we're of a similar age and I hadn't touched a soldering iron up to that point probably for almost 30 years but now I am well into it - and thoroughly enjoying your instruction!

Older folks? How dare you. I'm a recycled teenager. :)

What is with your nose man?

Really great for start, thanks!

Hello Sir. This was a helpfull Tutorial for me. Thank you for the Work. greetings from Germany to you

Nicely done sir! I’ve just turned 55, so I’m kind of in the older folks stage now, though I’ve been playing with the PIs since they came out. Always nice to have someone put a video up that I can refer too! One thing to note for viewers. Make sure you purchased an NVME drive, and not an SATA card. They have different pinouts even though they fit. Don’t ask

Now make it do something useful.

Those are parentheses not brackets.

Thanks

Thanks for leaving typos in. Only spotted the + error instead of = . I find when writing sketches/ programmes I inevitably type something wrong. Helps the me understand the workings better! Keep up the good work.

Great video, I never knew that MicroPython could handle interrupts so easily. I normally just use my microcontroller to detect buttons and enable LEDs. Thanks Les

nice thanks

Found you when seaching for ESP32 Intro's. Being 71 myself with some basic IT background I like to learn and play around with IOT projects and Home Assistent.

Interesting video. Where is the link for the code?

nice ty!

Why is it so difficult to program these boards, keep getting all kinds of faults in uploading. 😢😢😢

Thank you. I am retired a few years now and started some projects but with your detailed videos have helped.alot hoping to finish them

Merci beaucoup pour ce travail

wrong. it does NOT have 8 megabits of sd ram.....you make yourself sound a little drunk mate. It's 8 megaBYTES. Alot more information my man....

Just looked at your next video in your excellent series, and you have corrected the code, did I miss something on this video? Anyway it was a good exercise finding out the typo.

Followed this through. However I used 3 separate leds. Only the first channel worked, PWM on 1 led. the void setColor should read void setColor(byte r, byte g, byte b) { ledcWrite(chns[0], 255 - r); ledcWrite(chns[1], 255 - g); ledcWrite(chns[2], 255 - b); } You copied the first ledcWrite line and amended the r g b, but not the chns they were all at [0] Keep up the good work, as you say don't just copy the code, understand it. Thanks for the brain training. It has helped me understand the ESP32.

Found your channel after getting a ESP32. Enjoying the ride. On the issue for slow uploading, I also have that problem, seems to take forever. I also have an old laptop, thinking about getting one of those mini computers that sit behind the screen.

I absolutely enjoyed both videos, sender and receiver. The fact that you do not assume anything, or skip any step, provides clarity to everyone starting with ESP-NOW. Nicely done!

Just a suggestion. I think it would be more use full if you explain what we are going to to in the video prior to starting to execute commands. Also why would you read out the whole URL? Or command?

Great video.