ble advertising

[Smit]

Hi everyone,

I am trying to advertise data from nrf52832 to a smartphone (nRF Connect).

Below are my advertising parameters.

ble_adv_modes_config_t options = {0}; options.ble_adv_fast_enabled = BLE_ADV_FAST_ENABLED; options.ble_adv_fast_interval = 32; options.ble_adv_fast_timeout = 0;

The device broadcasts for 3 min and then stops advertising when I use Motorolla or iPhone.

If I use a Mi phone, then the advertising doesn't stop after 3 min. it advertises infinitely,

[DinoAU]

Hi Smit, I agree with Joakim. The advertising duration of your peripheral is totally independent of type of phone you are using to connect. You may be interested to know that there is normally a #define APP_ADV_TIMEOUT_IN_SECONDS in the main.c file that defines the advertising timeout. The default is 180 which sounds consistent with what you are seeing. This is based on my experiences with the nRF51422. Not sure if it is the same for your device. Good luck. Dino

[Smit]

Hi!

I tried changing it to APP_ADV_TIMEOUT_IN_SECONDS to 0 for infinite advertising but it doesn't work.

[Joakim Jakobsen]

Hi Smit.

When changing the APP_ADV_TIMEOUT_IN_SEONDS to 0, you also need to set the advertising flag to;

BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE;

Could you check that this is set as explained in this case?

Best regards.

[Smit]

Hi Joakim,

Yes, it is set to BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE.

[Joakim Jakobsen]

Hi again Smit.

Smit said:

I tried changing it to APP_ADV_TIMEOUT_IN_SECONDS to 0 for infinite advertising but it doesn't work.

Does that mean that the device doesn't advertise at all? Or that it is advertising, but stops after 3 minutes?

Maybe you could upload your code, so that I can test it myself?

Best regards.

[Smit]

Hi Joakim,

The device does advertise for 3 min but then it stops responding.

GitHub code click here.