Issue with pairing the BLE with my mobile phone

[ESP_Sun]

UART4 RX = +BLEADVPARAM:32,64,0,0,7,0,0,"00:00:00:00:00:00"
UART4 RX = OK
Theoretically, the default configuration is possible

[ggeorge]

ESP-AT V2.4 just launched with some of the fixes with BLE disconnection. Maybe this might help. Will try that and let you know.

Link: https://github.com/espressif/esp-at/rel ... ESP32C3-AT

[ggeorge]

All the issues still exist. It has discovery failure, connection failure and once disconnected from a client, it is not discoverable for further use.

[ESP_Sun]

1. Have you changed your phone to test?
2. I tested it several times with the same steps as you, and did not find the same problem.
3. You can download the nRF debugging assistant on your mobile phone for testing. There is a log (show log) in the nRF debug assistant, which can provide a disconnected log.

[ESP_Sun]

All the issues still exist. It has discovery failure, connection failure and once disconnected from a client, it is not discoverable for further use.

If the client is actively disconnected, you need to resend the AT+BLEADVSTART command on the server side to start the broadcast, and then connect.

[ESP_Sun]

Maybe we can set AT+CWMODE=0 command to test before establishing BLE connection, maybe the issue will be improved.

[ggeorge]

Tried that too, It's not working. Still gives an server RSSI level of -65 to -70 dB.

[ggeorge]

We are desperately in need of a solution here. We have another part ESP32­C3­MINI­1U with us also, what antenna should we use for this module? We are just trying different options as we are in a very critical stage of product development.