.. zephyr:code-sample:: nanopb
:name: Nanopb
Serialize and deserialize structured data using the nanopb module.
Overview
********
A simple protocol buffer sample using :ref:`nanopb_reference` for serializing structured data
to platform independent raw buffers or streams.
The structured data to encode/decode is presented as follows:
.. code-block:: proto
syntax = "proto3";
message SimpleMessage {
int32 lucky_number = 1;
bytes buffer = 2;
int32 unlucky_number = 3;
}
Configuration
*************
This sample uses two configuration options to modify the behavior.
* :kconfig:option:`CONFIG_SAMPLE_BUFFER_SIZE` sets the ``buffer`` field's size
* :kconfig:option:`CONFIG_SAMPLE_UNLUCKY_NUMBER` either enables or disables the ``unlucky_number``
field.
Building and Running
********************
This application can be built as follows:
.. zephyr-app-commands::
:zephyr-app: samples/modules/nanopb
:host-os: unix
:board: qemu_x86
:goals: run
:compact:
f6c232ec2e