How can i go back from "Connected" state to "Standby" state?

[Umair]

I am using RedbearLab BLE shield V2.1(nRF8001). I am connected once, i received the data. Now i want to terminate the connection and want to start advertising again? With which command it is possible?

[David Edwin]

ACI Disconnect is the command, lib_aci_disconnect() in lib_aci.h ACI Connect to start advertising again, lib_aci_connect()

Please take a look at the nRF8001 datasheet for more information.