[iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Muniek — Wed, 10 May 2017 10:46:08 GMT

Ok, we figured it out, 10 devices at once:) Thank you for your help

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Hung Bui — Tue, 09 May 2017 08:57:51 GMT

You need to make sure you changed the memory setting when you enable the softdevice to match with the increment of the connection. It's inside softdevice_enable() in softdevice_handler.c , you can see the requirement printed out if it's not enough.

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Muniek — Mon, 08 May 2017 14:21:24 GMT

Hi, we tried to increase maximum amount of connnection (5 connection) but devKit won't start.

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Hung Bui — Fri, 28 Apr 2017 13:26:33 GMT

You can change NRF_BLE_PERIPHERAL_LINK_COUNT directly. But it's better to be configure in the application, I agree. You can try to define NRF_BLE_PERIPHERAL_LINK_COUNT in C/C++ preprocessor symbol in project setting and replace all PERIPHERAL_LINK_COUNT with NRF_BLE_PERIPHERAL_LINK_COUNT in main.c

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Muniek — Fri, 28 Apr 2017 13:01:14 GMT

Thank you, now it's works! :)

If I would like to change maximum amount of connected devices, what should I change then in your example?

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Hung Bui — Fri, 28 Apr 2017 12:34:49 GMT

@Muniek: I just updated my answer for the workaround.

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Hung Bui — Thu, 27 Apr 2017 15:00:24 GMT

Could you explain what was the success connection ?

From the failed connection I can see that the MTU request from the phone was not responded. This would probably the reason why service discovery didn't come because the phone was waiting for the response.

[Update]We managed to reproduce the issue here, we will try to investigate and get back to you

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Muniek — Thu, 27 Apr 2017 13:46:52 GMT

Ok, now there is something, sorry :)

success connection

failed connection

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Hung Bui — Thu, 27 Apr 2017 12:29:42 GMT

@Muniek: Could you please send the full trace with no filter or cut off ? The filter you provide showed nothing except for empty packets. I can't see how the connection is established and terminated.

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Muniek — Thu, 27 Apr 2017 08:40:01 GMT

Using LighBlue on iPhone 6+ (2 Android phones already connected) I got "Timeout interrogating the peripheral". I attached a sniffer trace during iPhone connect to 'BLE Multiperipheral Application' and try to discover services: Sniffer Trace

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Hung Bui — Wed, 26 Apr 2017 13:00:53 GMT

Have you tried with other app ? For example the LightBlue app ? Please provide the sniffer trace.

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Muniek — Wed, 26 Apr 2017 11:20:38 GMT

If I connect two Android phones first, then iPhone can connect but can't see any services, just white page. (nRF Connect 1.7)? We tried with iPhone 5c, 5s, 6+, 7 and the same situation all the time.

RE: [iOS] Experimental BLE Multiperipheral Application SDK 13.0.0

Hung Bui — Wed, 26 Apr 2017 10:56:53 GMT

Hi Muniek,

Please try to test with nRF Connect app. I tested here but got no problem connecting 2 Android phone first then connect an IPad to the BLE Multiperipheral Application. Still able to turn off and on the LED.

You may want to record a sniffer trace. Please test with unmodified example.

[UPDATE]It's a bug in our SDK. If you change NRF_BLE_PERIPHERAL_LINK_COUNT to 4 at line 92 in nrf_ble_gatt.h then it should work. I will report it internally.