.. _hello_world: Hello World ########### Overview ******** A simple Hello World example that can be used with any supported board and prints 'Hello World' to the console. This application can be built into modes: * single thread * multi threading Building and Running ******************** This project outputs 'Hello World' to the console. It can be built and executed on QEMU as follows: .. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: qemu_x86 :goals: run :compact: To build the single thread version, use the supplied configuration file for single thread: :file:`prj_single.conf`: .. zephyr-app-commands:: :zephyr-app: samples/hello_world :board: qemu_x86 :conf: prj_single.conf :goals: run :compact: Sample Output ============= .. code-block:: console Hello World! x86