How to stop advertising ?

RE: How to stop advertising ?

Marcos Ciancio — Tue, 09 Jan 2024 11:26:51 GMT

Thank you!

RE: How to stop advertising ?

L.B. — Tue, 10 Aug 2021 08:25:38 GMT

Hi guys,

just wanted to say that our team has found a way to stop the advertising and terminate an active connection by adding:

init.config.ble_adv_on_disconnect_disabled = true;

in the "static void advertising_init(void)" function (in the ble_app_uart example) and then this

sd_ble_gap_disconnect(m_conn_handle, BLE_HCI_REMOTE_USER_TERMINATED_CONNECTION);

in the place where the stopping has to occur.

I'm using nRF5_SDK_17.0.2_d674dde, and s132, and nrf52832.

I hope this helps!

L. B.

RE: How to stop advertising ?

Vasiliy Baryshnikov — Mon, 19 Aug 2019 22:34:44 GMT

In SDK 15, if you are using a template derived project, you should use the following statement with the parameter to stop advertising:

sd_ble_gap_adv_stop(m_advertising.adv_handle);

RE: How to stop advertising ?

Øyvind Karlsen — Thu, 21 Jul 2016 09:02:45 GMT

Does it make sense for your application to stop advertising within the ble_nus_data handler? I expect that there won't be any advertising going on at that point anyway, since the device is already connected.

SoftDevice API calls run at interrupt priority level 2, this means that you cannot call them from higher priority interrupt, ie. application high, which runs at priority 1.

RE: How to stop advertising ?

shinho — Wed, 20 Jul 2016 16:50:03 GMT

Thanks

As atune answers, sd_ble_gap_adv_stop() works for stopping it. However sometimes sd_ble_gap_adv_stop() does not works as I intended by other events.

When put the function in the nus_data_handler(ble_nus_t * p_nus, uint8_t * mbda_data, uint16_t length), it does not work. So I make a flag in the hadler for an condition, and then check the flag in main(){ } and applied sd_ble_gap_adv_stop() as following.

main {
~~~
  for (;;)
    {
	power_manage();
	
       if (CONN_FLAG == true)
        { 
	     sd_ble_gap_adv_stop();
	}			
    }
}

I am not sure whether I am doing right.

APP_ADV_TIMEOUT_IN_SECONDS is not applicable to my case because stopping period of advertising is not constant. When a correct value is received by NUS Event, advertising should stop. If I can make APP_ADV_TIMEOUT_IN_SECONDS a static variable, it may work. I think.

If is there better way, please let me know. Thanks.

RE: How to stop advertising ?

atune — Wed, 20 Jul 2016 14:03:54 GMT

Ah yes the timeouts. I'm too used to infinite advertisement and manual control. :) I guess the library isn't really intended for general use.

RE: How to stop advertising ?

Øyvind Karlsen — Wed, 20 Jul 2016 13:15:45 GMT

Hi,

I think the general idea is to let APP_ADV_TIMEOUT_IN_SECONDS decide how long you advertise for, the advertisement is cancelled if the device gets connected to.

RE: How to stop advertising ?

atune — Wed, 20 Jul 2016 09:49:07 GMT

I believe you can use a combination of ble_advertising_start(BLE_ADV_MODE_IDLE); and sd_ble_gap_adv_stop(); to stop the advertisement and keep it stopped. Without the first call the library might restart advertisement on ble/sys events if you have them dispatched. Without the latter call the library won't stop advertising on its own.

It's rather odd that the library doesn't provide an explicit way to stop advertising. Maybe a bug/lack of a feature or maybe I don't understand the use case. :)