Button
Overview
A simple button demo showcasing the use of buttons with the Input APIs. The sample prints a message to the console each time a button is pressed.
Requirements
The board hardware must have a device node capable of generating input KEY events, typically a push button connected via a GPIO pin and defined in a “gpio-keys” node. These are called “User buttons” on many of Zephyr’s Supported Boards and Shields.
The sample additionally supports an optional led0 devicetree alias. If this
is provided, the LED will be turned on when the button is pressed, and turned
off when it is released.
Building and Running
This sample can be built for multiple boards, in this example we will build it for the nucleo_f103rb board:
west build -b nucleo_f103rb samples/basic/button