Nanopb sample


A simple protocol buffer sample using Nanopb for serializing structured data to platform independent raw buffers or streams.

The structured data to encode/decode is presented as follows:

syntax = "proto3";

message SimpleMessage {
    int32 lucky_number = 1;
    bytes buffer = 2;
    int32 unlucky_number = 3;


This sample uses two configuration options to modify the behavior.

  • CONFIG_SAMPLE_BUFFER_SIZE sets the buffer field’s size

  • CONFIG_SAMPLE_UNLUCKY_NUMBER either enables or disables the unlucky_number field.

Building and Running

This application can be built as follows:

west build -b qemu_x86 samples/modules/nanopb
west build -t run