client - server BLE application

[rushin]

hello there i have two nrf51 dk kits. now i want that one act as central and other act as server. i want to communicate between two. can you tell me how to do it?? i think i should create custom characteristic for UART.

[tesc]

You can use directed advertising and whitelisting, see one set of paired devices. The peripheral and the central must add each other to the whitelist on first connect, or the whitelist must be preprogrammed.