It looks like the "blufi" profile has gone through a huge update recently and definitely doesn't work in the way described in this thread anymore.

Unfortunately there is no documentation at all and I don't know (yet?) how it is supposed to work exactly.

1. Errors on console The output you see on the serial interface are mostly not errors, but just of an informational nature. Unfortunately, all the serial output from the bluetooth stack is mapped to ESP_LOGE and not to the more correct corresponding ESP_LOGD or ESP_LOGI macros. 2. Device not visibl...

there's a restriction on the UUID you can send to the esp_ble_gatts_app_register. It can only be in the range 0x0000 to 0x7fff. Thanks, that's good to know. I noticed, that in the last updates, there were a few changes in the BLE API and that the GATT server example was changed to accommodate two s...

I decided to create a seperate topic for this issue, that I originally mentioned in my UUID-not-advertised-topic . For better visibility and clearer structure. For some reason, most of the time I'm not able to connect to the ESP32 GATT server demo (example 14) using the Android app "BLE Scanner", w...

I took out these questions from my other BLE thread since they are not directly related to the issue outlined therein. What is the esp_ble_gatts_app_register call exactly for ? I tried digging deeper into the stack, but don't really understand what exactly happens after I call the function. It seems...

iPhone cannot realize service UUID of ADV_data. Because the ADV_DATA is only 31bytes. So you need to decrease the ADV_DATA size. In the demo, we do many settings of ADV_DATA for demo. So you can delete some settings of ADV_DATA. Thank you for chiming in. Sorry, this thread got a bit long, so it is ...

The "handle" means 'attribute handle", the bluetooth CORE spec define the name. So it's a professional name. "attribute handle " is a uniq number, it is used for indicating different attribute(service, characteristic, descriptor),because that , for example, two service use the same UUID simultaneou...

Hi, for your questions: 1. We make ESP_api provide to users. BTA_api is for bluedroid internal. So users should call ESP_api, rather than BTA_api. 2. When newer version of ESP_IDF release, we will update some ESP_api. Thanks for your response! 1. Okay, I understand that, so I can't really assume th...

Looking at all the Bluetooth LE examples, I realised that these all outline three possible approaches to work with Bluetooth LE in the current version of the SDK: examples/05_ble_adv: Manually shove bytes through the HCI. examples/12_blufi: Apart from the parts that are handled by the "blufi"-profil...

There is actually a corresponding pull request on github (not by me).

I agree, it would be nice to have this included in the next update.