Thank you for posting this information! I was just thinking about having two of my ESP32s communicate so I can build a system in the house! Keep up the great work on tutorials! They're really helpful and help us all build our inventions! Cheers, David.

excellent, you have a clear and pleasant way of talking, and explaining.

Great tutorial, thank you so much.

Great tutorials. Thank you a lot. Maybe your video is not such popular as videos about funny cats, but you save hours and hours of time to learn this knowledge personally.

Good tutorial, thanks!!!

Really appreciate this video. It helps me with my school project.

This has been very helpful, thank-you. I'm trying to add addition "characteristics" like at 9:07, which work, but they all appear multiple times?? Any thoughts.

Hey, really inspired by the work you are doing! Can you make a video about sending data from mobile app to esp32 using ble as well?

merci le S tu sauves mon projet

Please turn on line numbers to help us keep up with where you are.

Thank you for uploading this tutorial. I am trying to read my blood pressure monitor with an ESP32. The characteristic holding the relevant values has the property 'Indicate'. With the phone app it's easy to trigger it, but how would you fire the "indicate trigger" from an ESP32 client? Thanks, Nenad

Thank you for the valuable information posted. One question can we have multiple clients ?

Is it possible to run client and server simultaneously in one Esp32. I think its possible using the coex module in ESP-IDF but thats a bit too tough for me.

Thanks for the tutorial. Your tutorials are very clear. I have the following errors in the client: would you know what these errors has to do with? - Connected to server - Found our characteristics E (500048) BLE_INIT: Malloc failed App is onDisconnect part Disconnected from server... Rescan... E (508871) BT_APPL: Client_if: 255 Not Registered

Really appreciate your videos. I was wondering, Can I see my phone's battery percentage or some other sensor data of the phone in the RPI by creating GATT server and phone be a BLE device. Any tips and suggestions most appreciated!! Thanks in advance.

Thanks for posting this. Can you operate ESP32 and force it to never overlap Channels between Wifi and BLE? or the ESP will always dynamically will allocate channels based on channel availability ?

Hey this is great, thanks! I'm just getting into some BLE as part of trying to connect to an existing device. The trouble I am having is that the device shows a passkey which is required to be provided from the client, and I'm not sure how to build out that work flow... Any thoughts or demo code using passkeys?

Hi Mo - I am doing the exact same thing using the Arduino Nano 33 BLE Sense (they call it the Peripheral) and the Arduino Nano 33 BLE (which is called the Central. I can generate all the data via the sense into the nrf - but I cannot receive anything on the "Central" -(all these in the examples). They have the "Explore" sketch which allows one to "find" peripherals including the "Sense" and gets its ibasic information like name and number - but the Peripheral does not connect (this generates a message "not connected". In short what code in the Central will "connect?

Why are you using bit shifting to cast 4 bytes into a uint32? You could just bitcast into a uint32 unless you did it to avoid a possible problem with endianness differences. Another thing I would change is to keep using the nrf app to test the esp32 code. You can set the app to act as a server and advertise. Otherwise people will need to buy another esp32.

Hey man i am working on Smart Security System project i just want to ask is it possible to connect esp32 cam and esp32 Dev module to connect can you make the video based on that how to communicate between them ?

Is it possible to make a small network with more than 2 devices via BLE? Like, 2 ESP32 boards that receive data from sensors and then send data via BLE to a 3rd ESP board.

Do you have any example of communication between a BLE server and a BLE client in INDICATE characteristic mode. Any hint?

Hi! Would it be possible for me to connect two clients to the same server, and both send data? f possible, would you have an example code or could you make a video about it. I would be very grateful.

Hello , how to send data from BLE client to specific BLE server when client is connected to multiple servers where all has servers has same service and characteristics UUIDs??

can esp ble be communicate with nrf51822 bluetooth module?

Why do the server and client connect after I click the reset button? Can someone please tell me

24:31 / 36:06

I have a errors when uploading esp32/ int is not a member of 'BLEDevice can you help please?

Error compiling for board DOIT ESP32 DEVKIT V1. help me