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Many thanks for this. Took me two goes but I got it working. Used it to make a speedometer for a model train. I can't say it was easy, but it was much easier than I expected. Now planning to add a load cell to make a dynamometer car.

I've used it in a PID control thermostat project, works great - thank you!

hello dear sir i am facing the follwoing problem in aurdion ide 1.8.19 while running the code please help me. ,, i also want to work under you please help me. C:\Users\GOPAL\Desktop\aurdino\arduino-1.8.19\examples\ESP32WebserverLedControl\ESP32WebserverLedControl.ino:101:7: warning: 'template<unsigned int N> class ArduinoJson::V720PB22::StaticJsonDocument' is deprecated: use JsonDocument instead [-Wdeprecated-declarations] StaticJsonDocument<200> doc; // create JSON container ^~~~~~~~~~~~~~~~~~ In file included from C:\Users\GOPAL\Documents\Arduino\libraries\ArduinoJson\src/ArduinoJson.hpp:56, from C:\Users\GOPAL\Documents\Arduino\libraries\ArduinoJson\src/ArduinoJson.h:9, from C:\Users\GOPAL\Desktop\aurdino\arduino-1.8.19\examples\ESP32WebserverLedControl\ESP32WebserverLedControl.ino:17: C:\Users\GOPAL\Documents\Arduino\libraries\ArduinoJson\src/ArduinoJson/compatibility.hpp:63:58: note: declared here class ARDUINOJSON_DEPRECATED("use JsonDocument instead") StaticJsonDocument ^~~~~~~~~~~~~~~~~~ C:\Users\GOPAL\Desktop\aurdino\arduino-1.8.19\examples\ESP32WebserverLedControl\ESP32WebserverLedControl.ino: In function 'void sendJson(String, String)': C:\Users\GOPAL\Desktop\aurdino\arduino-1.8.19\examples\ESP32WebserverLedControl\ESP32WebserverLedControl.ino:141:5: warning: 'template<unsigned int N> class ArduinoJson::V720PB22::StaticJsonDocument' is deprecated: use JsonDocument instead [-Wdeprecated-declarations] StaticJsonDocument<200> doc; // create JSON container ^~~~~~~~~~~~~~~~~~ In file included from C:\Users\GOPAL\Documents\Arduino\libraries\ArduinoJson\src/ArduinoJson.hpp:56, from C:\Users\GOPAL\Documents\Arduino\libraries\ArduinoJson\src/ArduinoJson.h:9, from C:\Users\GOPAL\Desktop\aurdino\arduino-1.8.19\examples\ESP32WebserverLedControl\ESP32WebserverLedControl.ino:17: C:\Users\GOPAL\Documents\Arduino\libraries\ArduinoJson\src/ArduinoJson/compatibility.hpp:63:58: note: declared here class ARDUINOJSON_DEPRECATED("use JsonDocument instead") StaticJsonDocument ^~~~~~~~~~~~~~~~~~ fork/exec C:\Users\GOPAL\AppData\Local\Arduino15\packages\esp32\tools\esptool_py\3.3.0/esptool.exe: This version of %1 is not compatible with the version of Windows you're running. Check your computer's system information to see whether you need a x86 (32-bit) or x64 (64-bit) version of the program, and then contact the software publisher. Error compiling for board ESP32 Dev Module.

Awesome Tutorial ! Greetings from Brazil !!!

you have deleted the client.ino file.pls re upload this.

Very helpful, thanks!

Fantastic tutorials

Muy bueno el video pero con las complicaciones que tiene programar con ble yo sigo usando bluetooth serie que es más super sencillo de programar aunque consuma un poquito más que el ble

sir please can you do a video how to use .net maui than xamarine please

how would you make this app a very user friendly beautiful app?

Ringbuffer(size_t length, ringbuf_type_t type = RINGBUF_TYPE_NOSPLIT); please help me whats wrong with this

For some time now, I wanted to implement a BLE sensor for an ergometer that already displays speed, power, cadence, etc... so it can be sent to my watch. You got me going, just ordered the ESP32 to start implementing it. Thank you for the quality content you provided!!!

Instead of seeing website in our IP address, can we make it on real website? Any difference in the code? Thanks in advance...

Finally! Finally I found someone who clearly explain it! Thanks so much!

is it ios compatible?

Hey man, it's me again. Thank you for your tutorials! I have another question; can you make your android phone the client that receives the data through an MIT invented app? Thank you!

hey man, thank you for the tutorial. I have a question, can you still connect this code into the MIT app inventor to make a new app? thank you so much!

How to do this but with ble?

I'm trying to do this the other way lmao, i want to make a physical button connected to a esp32 do something on a app

simply great headsofff

Thank you very much, your explanation is very good.

Still a excellent way to transmit short information. Thank you for this example and excellent tutorial! Implemented it to my project and works like a charm! 😀 I'm only a bit confused why it only transmits 14 bits and not 16.

very interesting video, Thanks I would like to synchronize my Ds3231 RTC every day using the ntp: How could I do that please ? Thanks for all regards

Hi i used part1 it connected to esp32 wroom but if i moved away from esp32 say 5m it does not connect

can you do a video on how to save data on an external SPI chip like W25QXX

for some reason this line: Output.Text += Encoding.UTF8.GetString(recievedBytes, 0, recievedBytes.Length) + Environment.NewLine; errors on the .Length

Super clear and, for me, with the perfect level of detail. Thanks!

Hi Mo, I have been looking for a solution like this very long. It covers everything i wanted to do from the Arduino to the buttons on the website. And the real time updating with the Json system. Wonderful. Thank you so much for your contribute. Very Good. 5 Stars from me.

To install this library, type only 'websockets' in Arduino IDE library manager. There will be the usual 'ArduinoWebSockets' library by Gil Maimon, and a few others like 'Fast web sockets'. Skip them. Scroll till you get 'WebSockets' by Markus Sattler.

very informative, thank you so much

Apparently these BT permissions only work on Android 12+. For older devices you need android.permission.BLUETOOTH and FineLocation

All the information you need to get started with web sockets - neatly shrink wrapped into a 35 minute video. Excellent!

can i send two data type in one characteristic or receive it with a list or something ?

Absolutely Great, Simple and Clear Explanation.

I don't know why when I use slider I sometimes get float number instead of integer and my serial doesn't print if it's not integer. For example. From phone to ESP32: ID: 1, value: 170.5 Serial monitor: nothing. From phone to ESP32: ID: 1, value 170 Serial monitor: Id: 1 val: 170.

Fantastico job!

Do you have a video where the Bluetooth app will save the data to the esp32 that is persist after reboot of the esp32?

it works great with char1 but the app doesn't start when char2 blocks are in 😐... Thanks for this very detailed description and step by step creation

Do you know any reference about how to interpret the values in the packets?

You are one heck of a teacher. I commend you Sir.

I have some questions and solutions pls tell ms how can i ask

still Waiting you makes can save pdf to reporting 😊

Brilliant stuff!!

Great explanation

Thank you so much Mi o ni WA e ti

on my ESP32-c6 it crashes at webSocket.begin() (line78) Initializing WebSocket... Guru Meditation Error: Core 0 panic'ed (Load access fault). Exception was unhandled. Is there another way to do it without WebSocket?

I dunno what to do! Im just using a rotary with the atmega328p chip, and then I make the pull up resistor circuit + filters but the values still bounce any time.

Hello! Have you tried to connect 2 clients to 2 characteristics of one server?

Hello! Do you know if it is possible to connect 2 esp32 to 2 different characteristics of one server?