This is the documentation for the latest (master) development branch of Zephyr. If you are looking for the documentation of previous releases, use the drop-down menu on the left and select the desired version.


This section contains information regarding the Bluetooth stack of the Zephyr OS. You can use this information to understand the principles behind the operation of the layers and how they were implemented.

Zephyr includes a complete Bluetooth Low Energy stack from application to radio hardware, as well as portions of a Classical Bluetooth (BR/EDR) Host layer.