Features Supported in Simplicity SDK for Zephyr#

SoCs#

Support for Silicon Labs SoCs is added incrementally. See Software Quality Levels for details about support level for Series 2 and SiWx91x SoCs.

Boards#

See the Silicon Labs board definitions in the Zephyr upstream documentation. To build for a specific board, pass the board name using the -b argument in the west build command.

You can use the Zephyr Supported Boards and Shields page to search for supported boards.

Wireless Protocols#

On Series 2 devices, only Bluetooth Low Energy (BLE) is supported. On SiWx917, BLE and Wi-Fi are supported. Community contributions have added support for custom RAIL configurations to enable proprietary wireless protocols on Series 2.

The SiWG917 device supports both Wi-Fi and Bluetooth Low Energy (BLE) connectivity, enabling dual-protocol wireless operation. It is designed for ultra-low-power IoT applications that require seamless Wi-Fi networking alongside BLE-based control or provisioning.

See Software Quality Levels for details about the features supported for the wireless protocols.

Example Applications#

Example applications are available in the Zephyr upstream repository under Zephyr upstream Samples and Demos. These provide reference implementations for supported features and hardware.