Bluetooth Smart security alarm system

[Pomah9i]

I want to connect to the wired sensor NRF51822 board, whether it is possible to adjust the findings for the closure, they sent a message to the application?

[tesc]

I still have difficulties understanding.

Do you want to connect only to certain phones? Then you can use either whitelisting or directed advertising to filter what device to connect to. See for instance the advertising module or the peer manager.