Stop advertising

[hrg]

Hi how to power off the ble after one advertising event ? i.e i want to stop advertising after one advertising event!

[Nikita]

Don't know if it will work, but try this:

• If first advertising event is generated with advertising interval delay after sd_ble_gap_adv_start call then try to call sd_ble_gap_adv_stop after calling sd_ble_gap_adv_start and waiting for 3/2*(advertising interval) with timer.
• If first advertising event is generated right after sd_ble_gap_adv_start call ther wait for 1/2*(advertising interval) with timer and call sd_ble_gap_adv_stop.

[John]

Why not set the advertising timeout to a value less than your advertising interval. Then when the stack returns the BLE_GAP_EVT_TIMEOUT event with a source of BLE_GAP_TIMEOUT_SRC_ADVERTISEMENT you can then do your power off work.

It is possible that sd_ble_gap_adv_start may check to ensure that the timeout is longer than the interval and return an error in which case this won't work. Otherwise I think it is a simple solution.

[Nikita]

It will work only with advertising interval > 1 second because minimum advertising timeout value is 1 second.

[hrg]

Thankyou guys ! i tried with advertising start den some delay of 4 ms (using nrf_delay_us()) den power off (sleep ) !.now i can see the current waveform with one advertising ! now i have to try whether master control panel can detect my device or not !!

note: is it right using nrf_delay instead of setting a timer ????

[Nikita]

You can do it with nrf_delay for test purpose.