Pre/Post Advertise Hook

RE: Pre/Post Advertise Hook

Petter Myhre — Tue, 03 Jun 2014 10:44:52 GMT

Comments should be used to get more information or clarification about a question or answer, not to post new questions that are not very relevant to the original question.

RE: Pre/Post Advertise Hook

Petter Myhre — Tue, 03 Jun 2014 10:38:15 GMT

Please don't post a question as an answer. This should be a separate question(link to this question if it's relevant).

RE: Pre/Post Advertise Hook

Chris — Tue, 03 Jun 2014 08:46:34 GMT

Well after a bit of trial and error I got this working. I can tell when I've sent a scan response which is great.

Bad news is I was being scanned all the time so I've turned off scan responses to reduce battery life!

RE: Pre/Post Advertise Hook

Chris — Sat, 31 May 2014 02:36:33 GMT

Just re-reading your reply Dan and you mention that you'll only get them before/after advertising when not connected so perhaps this will work..

I thought to time it to know how long (roughly) a standard advertisement takes vs a scan response.. Would this be a reasonable approach to determine if we had been scanned (i.e.: we sent a scan response)..

RE: Pre/Post Advertise Hook

Chris — Sat, 31 May 2014 01:03:17 GMT

Is there anyway to know what the radio is sending...? i.e.: knowing that its an advertising transmission or a scan response that is being sent out..? I guess we could know when we're in connected state (via the SD ble events) so if we're not in that state we can assume the radio is doing advertising work...?

I'm trying to figure out a way to detect when the nordic device was scanned and sent out its scan response..

RE: Pre/Post Advertise Hook

Dan Danknick — Fri, 30 May 2014 21:51:01 GMT

This is a great question. If you're not in the connected state then the only radio notifications you'll get are before and after the SD grabs the CPU to advertise.

Using the function that Petter mentioned is easy. Invoke it in main():

ble_radio_notification_init(NRF_APP_PRIORITY_HIGH, NRF_RADIO_NOTIFICATION_DISTANCE_800US, InterruptEvent);

and define the pre/post event function that takes your sensor sample and adjusts the advertising payload:

void InterruptEvent(bool radio_active)
{
}

Dan

RE: Pre/Post Advertise Hook

Chris — Fri, 30 May 2014 11:29:44 GMT

Is there any sample code for this anywhere...?

RE: Pre/Post Advertise Hook

Petter Myhre — Tue, 27 May 2014 14:55:54 GMT

Have you investigated the Radio Notification Event Handler?

This is a module for propagating Radio Notification events to the application.

RE: Pre/Post Advertise Hook

Petter Myhre — Tue, 27 May 2014 14:53:56 GMT

Sorry for the late reply.

I'm not sure what example you are thinking of. We have an example implementing the Health Thermometer Service in our SDK, but the temperature is not included in the advertisment package. It requires you to connect, and turn on indications, to get the temperature.