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.. zephyr:code-sample:: bluetooth_observer :name: Observer :relevant-api: bt_gap bluetooth Scan for Bluetooth devices nearby and print their information. Overview ******** A simple application demonstrating Bluetooth Low Energy Observer role functionality. The application will periodically scan for devices nearby. If any found, prints the address of the device, the RSSI value, the Advertising type, and the Advertising data length to the console. If the used Bluetooth Low Energy Controller supports Extended Scanning, you may enable :kconfig:option:`CONFIG_BT_EXT_ADV` in the project configuration file. Refer to the project configuration file for further details. Requirements ************ * A board with Bluetooth Low Energy support Building and Running ******************** This sample can be found under :zephyr_file:`samples/bluetooth/observer` in the Zephyr tree. See :zephyr:code-sample-category:`Bluetooth samples section <bluetooth>` for details.