[NRF52840 - Pc-ble-driver-py] disconnection issue for no reason after ~290s

[gaetan14]

Hi,

I'm using the nordic nRF52840 - Dongle and a  nRF52840-DK trying to send and write data with the pc-ble-driver-py library.

My problem is that i can communicate in ble (send/write data) between both but after ~290s I have a message error and the device is disconnected. 

This is the message error :  attr_handle = self.db_conns[conn_handle].get_char_value_handle(uuid)  KeyError: 0 KeyError: 0"

Furthermore, when I use the nRF connect on PC I don't have this problem.

I saw that someone had almost the same issue but no one could find the solution so i hope this time you will be able to help me.

Thanks in advance.

Gaetan

[tesc]

Hi,

Can you share logs from the pc-ble-driver side and/or from the other device? (More than only the error message.)

Can you share a sniffer trace from the connection?

Can you share a link to the almost same issue that you reference?

If you cannot share the above information in public, then please create a private case, share it there instead, and reference this case.

Regards,
Terje

[gaetan14]

Hello Tesc,

To be more precise with my config, I use the heart rate collector example on the nRF52840-DK and I just want to read heart_rate/battery_level values for more than 5min. But now this error occurs : 

Disconnected: 0 BLEHci.conn_interval_unacceptable

I link to this post the file with my code.

Here the link of almost the same disconnected issue.

Regards,

Gaetantest_heart_rate_collector.zip

[gaetan14]

Does anyone has any idea why I have this problem ?