.. zephyr:code-sample:: ble_direct_adv
   :name: Direct Advertising
   :relevant-api: bluetooth

   Advertise directly to a bonded central device.

Overview

Application demonstrating the Bluetooth LE Direct Advertising capability. If no device is bonded to the peripheral, casual advertising will be performed. Once bonded, on every subsequent boot direct advertising to the bonded central will be performed. Additionally this sample provides two Bluetooth LE characteristics. To perform write, devices need to be bonded, while read can be done just after connection (no bonding required).

Please note that direct advertising towards iOS based devices is not allowed. For more information about designing Bluetooth LE devices for Apple products refer to "Accessory Design Guidelines for Apple Devices".

Requirements

• A board with Bluetooth LE support
• Second Bluetooth LE device acting as a central with enabled privacy. For example another Zephyr board or any modern smartphone

Building and Running

This sample can be found under :zephyr_file:`samples/bluetooth/direct_adv` in the Zephyr tree.

See :zephyr:code-sample-category:`bluetooth` samples for details.