BLE disconnection with xiaomi

RE: BLE disconnection with xiaomi

Kenneth — Tue, 25 Feb 2020 08:59:50 GMT

I suggest that you read data every ~10 seconds and check if the problem persists. An on-air sniffer log would likely pin-point the issue directly:
https://www.nordicsemi.com/Software-and-tools/Development-Tools/nRF-Sniffer-for-Bluetooth-LE/

Roei — Tue, 25 Feb 2020 08:28:48 GMT

I tried to connect my NRF device to a mobile using NRF connect. I don't know exactly how frequently the data is sent. Can it be related?

Kenneth — Mon, 24 Feb 2020 15:57:15 GMT

[quote user="Roei"]If I choose not to disconnect, isn't that problematic to stay connected with problems?[/quote]

The "problem" may be longer latency, if that is critical you can of course disconnect, but then no data is sent. It's up to you really.

[quote user="Roei"]I tried to increase the max connection interval but it didn't help.[/quote]

This means that the problem is not related to connection interval.

How frequently are you sending data from the peripheral to the phone in this case before disconnect?

Roei — Mon, 24 Feb 2020 15:11:03 GMT

I tried to increase the max connection interval but it didn't help.

If I choose not to disconnect, isn't that problematic to stay connected with problems?

Thanks!

Kenneth — Mon, 24 Feb 2020 14:57:04 GMT

I assume based on your description that you have tested that if you increase the max connection interval then it stays connected?

If is the case, then you may solve your problem by either increase max connection interval, or choose to not disconnect:

In conn_params_init() make sure that:
cp_init.disconnect_on_fail = false;