| .. _bluetooth-scan-adv-sample: | 
 |  | 
 | Bluetooth: Scan & Advertise | 
 | ########################### | 
 |  | 
 | Overview | 
 | ******** | 
 |  | 
 | A simple application demonstrating combined BLE Broadcaster & Observer | 
 | role functionality. The application will periodically send out | 
 | advertising packets with a manufacturer data element. The content of the | 
 | data is a single byte indicating how many advertising packets the device | 
 | has received (the number will roll back to 0 after 255). | 
 |  | 
 | Requirements | 
 | ************ | 
 |  | 
 | * BlueZ running on the host, or | 
 | * A board with BLE support | 
 |  | 
 | Building and Running | 
 | ******************** | 
 |  | 
 | This sample can be found under :zephyr_file:`samples/bluetooth/scan_adv` in the | 
 | Zephyr tree. | 
 |  | 
 | See :ref:`bluetooth samples section <bluetooth-samples>` for details. |