How to make permanently unique Bluetooth pairs?

[Johnson]

I want to setup pairs of nRF51-dongle and nRF51-beacon where dongle-1 will always bond with beacon-1, dongle-2 with beacon-2, etc. If dongle-1 and beacon-2 are switched on while beacon-1 is still off, dongle-1 must not bond with beacon-2.

I'm using the BLE UART example as the starting point. The nRF51-beacon already have the following defined. So I should be able to assign unique names to each beacon.

#define DEVICE_NAME                     "Nordic_UART"                               /**< Name of device. Will be included in the advertising data. */
#define NUS_SERVICE_UUID_TYPE           BLE_UUID_TYPE_VENDOR_BEGIN                  /**< UUID type for the Nordic UART Service (vendor specific). */

How do I code the dongle so that it will only bond with a beacon with specific device name?

If device name is not a suitable option, what other options (MAC address?) are available?

[Roger Clark]

When you say bond to a beacon, do you mean bond to BLE device? I don't think you can connect to a beacon.

Anyway, Assuming you want to connect to only one BLE device, you could add some custom manufacturer data to the "beacon" that contains a ID, then your "Dongle" can check the ID in the manufacturer data and only connect to the device that matches that ID number

[Artucas]

You can connect to the beacon by modifying it a little bit (software i mean., of course). I think MAC address is the best to use for this, because you can never be sure that there won't be another company's beacons with the same name as yours.

[deek]

So this kinda creates a unique and permanent connection between the bluetooth master and slave respectively?