Android Question BLE DOESN'T CONNECT TO ESP32

[RockSmoke]

Good day to everyone. I uploaded the BLE EXAMPLE to my phone. The application scans BLE devices, sees esp32 but does not connect. but apps in google play successfully connect.
Does anyone have an idea. Thanks

 

[Erel]

First step is to post the logs.

 

[RockSmoke]

I am sorry. b4a logs ->

Logger connected to: 5e59c517
--------- beginning of main
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Call B4XPages.GetManager.LogEvents = True to enable logging B4XPages events.
** Activity (main) Resume **
FusedLocationProvider connected, callback sub not found: flp_connectionsuccess
Found: ESP32, C8:C9:A3:FC:C9:72, RSSI = -55, (MyMap) {9=[B@f68ccf, 0=[B@efb365c}
Disconnected

When the program finds esp32, I click connect. It says disconnected after 4-5 seconds.
I'm new to the forum, sorry for my mistakes

 

[Serge Bertet]

What is the app inside the esp32?
I'm running http://tvaira.free.fr/bts-sn/activites/activite-ble/exemple_ble_2.ino and it's working well.
No messages in the Arduino console?

 

[RockSmoke]

it finally worked. I didn't have time to research when I opened this thread. I couldn't search the forum. Now here([SOLVED] BLE connection problems) and here(BLE2 Library additional functions) I applied what was done in these 2 issues and it was resolved. thank you very much for your help.

 

[RockSmoke]

What is the app inside the esp32?
I'm running http://tvaira.free.fr/bts-sn/activites/activite-ble/exemple_ble_2.ino and it's working well.
No messages in the Arduino console?

I'm working on ble idf. But my problem was on b4a. This problem has been encountered before and has been resolved. Thanks for your answer