Bluetooth 5 - Android nRF Connect scans for Phy Coded - latency

[Sebastien16]

Hi everybody,

I am testing Phy Coded with nRF52840 and Android.

But I see that the nRF Connect on Android phone (MI9) scans only 1 second with an interval of 10 seconds for Phy Coded.

Is it possible to change the window/interval in Android API to reduce the latency for Phy Coded? Is there any documentation about these timings?

Thanks in advance,

 

[Simonr]

Hi

This means that your phone doesn't support the full extent of the Coded PHY, as it is only able to scan on the primary channels, while the rest of a Coded PHY advertisement is transmitted on secondary channels of BLE. In order to use Coded PHY on these phones, you have to connect to the phone using one of the supported Uncoded PHYs and ask for a PHY update to Coded PHY once connected.

We're aware that the nRFConnect app says that the phone supports Coded PHY even though it doesn't, and we're working on a fix for that.

Best regards,

Simon