changing advertisement packet

RE: changing advertisement packet

bjorn-spockeli — Thu, 18 May 2017 07:40:55 GMT

@binhnguyens: I think you should read the Manufacturer Specific Data section of the tutorial I linked to above. There changes from SDK v11 and v12.2.0 regarding how we initialize advertising are minimal so the tutorial should still be very relevant. As @endnode said, if you hit one specific roadblock then please post a new question where you include all the relevant information needed regarding said roadblock, i.e. what steps yo have done, which errors you're getting etc.

RE: changing advertisement packet

binhnguyens — Tue, 16 May 2017 18:37:15 GMT

I tried the tutorial, its for version 11, i have version 12.2 and a library cannot be found when i try to run it

RE: changing advertisement packet

endnode — Tue, 16 May 2017 16:43:07 GMT

I would say go through all the tutorials (especially the one linked by Bjorn above) and absorb all the details how to build, debug, load the FW on nRF5x. If you have some specific roadblock then please set-up new question with precise explanation what you have as baseline, what steps you did, what do you expect and what you see instead. Sorry.

RE: changing advertisement packet

binhnguyens — Tue, 16 May 2017 14:36:47 GMT

p.s i'm a beginner so this stuff isn't so familiar to me

RE: changing advertisement packet

binhnguyens — Tue, 16 May 2017 14:35:01 GMT

@endnode I tried an example from nrf5 sdk, they include all the functions you listed. how do I change the actual packet (i have a sniffer dongle so i can read what is being sent, I want to be able to change the message) let me know if that makes sense

RE: changing advertisement packet

endnode — Sat, 13 May 2017 20:01:44 GMT

There are many examples in nRF5 SDK, simply download, unzip and search sd_ble_gap_adv_data_set in full text in all *.c files under ./examples folder. (to be honest it's pretty clear from linked documentation how to use that function, isn't it?)

RE: changing advertisement packet

binhnguyens — Fri, 12 May 2017 15:19:37 GMT

is there an example that already contains all of this or something on github?

RE: changing advertisement packet

binhnguyens — Fri, 12 May 2017 14:46:08 GMT

@endnode Can you give an example code of how this would be executed?

RE: changing advertisement packet

bjorn-spockeli — Fri, 12 May 2017 11:08:37 GMT

I recommend that you take a look at our Advertising tutorial, found here.

RE: changing advertisement packet

endnode — Fri, 12 May 2017 09:20:43 GMT

Yes, you can change ADV and SCAN_RSP data with SoftDevice API, see GAP layer functions here (S132 V4, you can see very similar in other releases). You can basically call sd_ble_gap_addr_set, sd_ble_gap_adv_data_set and sd_ble_gap_tx_power_set any time to influence GAP advertising procedure, they will be effective from very next advertising packer (you can call it if it isn't advertising as well, then you need to call start to see the result, but you can call it even when it runs and no need to stop/start).