How to get infinite Advertisement in ble_app_uart example project?

[Priyajit]

I set 0 to APP_ADV_DURATION then advertising stopes.

[Vidar Berg]

Hello,

You also need to change the adv. flag in adv. init from BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE to BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE, because the max. adv. duration is limited to 3 minutes in limited discovery mode.

[Priyajit]

I am using nRFF52840 DK with SDK 17.0.0.9. there is no BLE_GAP_ADV_FLAGS_LE_ONLY_LIMITED_DISC_MODE  flag, but there BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE is present. What can I do?

[Vidar Berg]

Is it set with general discovery mode like shown below?

[Priyajit]

It is working but this advertisement is not showing to other than nrf UART app.

please give me solution.

[Vidar Berg]

What other apps did you try? Our nRF connect app should display it as well.

[Priyajit]

There is limitation in nRF UART app. I can only sent 20 character at a time. I need to send more than 20 character because I am inter face with my energy meter. It is following DLMS protocol.

[Vidar Berg]

The effective payload packet may be limited to 20 bytes if you use an old phone that doesn't support long MTU. I'm not familiar with this protocol, but I imagine you can split and reassemble the packets in your app and FW.