.. zephyr:code-sample:: w1-scanner
:name: 1-Wire scanner
:relevant-api: w1_interface
Scan for 1-Wire devices and print their family ID and serial number.
Overview
********
This sample demonstrates how to scan for 1-Wire devices. It runs the 1-Wire
scan routine once and prints the family id as well as serial number of the
devices found.
Building and Running
********************
Set DTC_OVERLAY_FILE to "ds2484.overlay" or "w1_serial.overlay" in order to
enable and configure the drivers.
.. zephyr-app-commands::
:zephyr-app: samples/drivers/w1/scanner
:board: nrf52840dk_nrf52840
:gen-args: -DDTC_OVERLAY_FILE=w1_serial.overlay
:goals: build flash
:compact:
Sample Output
=============
.. code-block:: console
[00:00:00.392,272] <inf> main: Device found; family: 0x3a, serial: 0x3af9985800000036
[00:00:00.524,169] <inf> main: Device found; family: 0x3a, serial: 0x3a6ea2580000003b
[00:00:00.656,097] <inf> main: Device found; family: 0x28, serial: 0x2856fb470d000022
[00:00:00.656,097] <inf> main: Number of devices found on bus: 3
a833d20ffb