.. _96b_carbon_multi_thread_blinky:

Basic Thread Example
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Overview
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This example demonstrates spawning of multiple threads using K_THREAD_DEFINE.

The example works by spawning  three threads. The first two threads control a
separate LED. Both of these LEDs (USR1 and USR2) have their individual loop
control and timing logic defined by separate functions.

The third thread, uart_out(), sends out messages on the UART using printk().

- blink1() controls the USR1 LED that has a 100ms sleep cycle
- blink2() controls the USR2 LED that has a 1000ms sleep cycle

Each thread is then defined at compile time using K_THREAD_DEFINE.

Building
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.. code-block:: console

    $ cd samples/basic/threads
    $ make