I have an nrf51 dev board which i can currently connect to an android phone and read data from. I would like this board to be able to scan for other BLE devices and send data back to the phone. I'm lost as to where to start when it comes to scanning for other devices using my board. Is there a function I can call? I don't necessarily need all the capabilities of a BLE sniffer, all I wasn't is MAC Address, Name, and RSSI from surrounding devices that are advertising.