Pairing with iOS and Android (nRF52832 chip).

[Demetrio Magrin REEL]

I modified the FW "ble_app_uart" using the example "Nordic-SDK\nRF5_SDK_15.2.0_9412b96\examples\ble_peripheral\en_app_uart\".
I added the pairing function and "delete_bonds()".

My BLE device "Nordic_UART" is visible from the Samsung Galaxy Tablet TAB-A6 with Android 8.1.0, BT "4.2" (from the settings menu).
Here I can perform the "pairing" operation to enable encrypted communication.

The same device is not visible from the iPAD mini with iOS 8.0 and BT "4.0" (from the settings menu).
It follows that I cannot perform the "pairing" operation to enable encrypted communication.
A BLE application downloaded from the APP Store sees my BLE device "Nordic_UART" .
The communication is not encrypted (verified by the BLE sniffer).

Is it possible to enable "pairing" also on iOS ?
Is it a problem with the BT version of the iPAD mini (BT 4.0) ?
Where can I find an example to enable pairing on Android and iOS ?

Thank you.

Demetrio Magrin

[Kenneth]

Typically the OS will only display some common HID devices in the BT listing, if you want to connect to other BLE devices you need an app for it, for test you can use nRF Connect:
https://www.nordicsemi.com/Software-and-Tools/Development-Tools/nRF-Connect-for-mobile

[Demetrio Magrin REEL]

Hi Kenneth,

Sorry Mr Kennetk.

I forgot to specify an important thing.
The "Pair" function is available on the "nRF Connect" program for windows, but is not available on the iOS version.
I couldn't find this feature on the iOS version. I'm wrong ?

I await your kind reply.

Thank you for your support.

BR

Demetrio Magrin

[Kenneth]

Honestly I don't know, iOS 8 is a rather old OS version, it may be some limitations. In general if you have setup the security level of the characteristics I would expect iOS to bond/pair with the minimum requirements set by the security level required by the characteristics in the GATT database of the peer, otherwise it would not be able to access them.

[Demetrio Magrin REEL]

Hi Kenneth,

I understand that pairing is not possible from the iOS operating system.
The pairing must be managed by my BLE application.
Correct ?

Thank you for the support.

BR

Demetrio Magrin

[Kenneth]

See here:
https://stackoverflow.com/questions/25254932/can-you-pair-a-bluetooth-le-device-in-an-ios-app