esp-idf/examples/README.md

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# Examples
This directory contains a range of example ESP-IDF projects. These are intended to demonstrate parts of ESP-IDF functionality, and to provide code that you can copy and adapt into your own projects.
# Example Layout
The examples are grouped into subdirectories by category. Each category directory contains one or more example projects:
* `bluetooth/bluedroid` contains Classic BT, BLE and coex examples using default Bluedroid host stack.
* `bluetooth/nimble` contains BLE examples using NimBLE host stack.
* `bluetooth/esp_ble_mesh` contains ESP BLE Mesh examples.
* `ethernet` contains Ethernet examples.
* `get-started` contains some very simple examples with minimal functionality.
* `mesh` contains Wi-Fi Mesh examples.
* `peripherals` contains examples showing driver functionality for the various onboard ESP32 peripherals.
* `protocols` contains examples showing network protocol interactions.
* `storage` contains examples showing data storage methods using SPI flash or external storage like the SD/MMC interface.
* `system` contains examples which demonstrate some internal chip features, or debugging & development tools.
* `wifi` contains examples of advanced Wi-Fi features. (For network protocol examples, see `protocols` instead.)
* `build_system` contains examples of build system features
# Using Examples
Building an example is the same as building any other project:
* Follow the Getting Started instructions which include building the "Hello World" example.
* Change into the directory of the new example you'd like to build.
* Run `idf.py menuconfig` to open the project configuration menu. Most examples have a project-specific "Example Configuration" section here (for example, to set the WiFi SSID & password to use).
* `idf.py build` to build the example.
* Follow the printed instructions to flash, or run `idf.py -p PORT flash`.
# Copying Examples
Each example is a standalone project. The examples *do not have to be inside the esp-idf directory*. You can copy an example directory to anywhere on your computer in order to make a copy that you can modify and work with.
The `IDF_PATH` environment variable is the only thing that connects the example to the rest of ESP-IDF.
If you're looking for a more bare-bones project to start from, try [esp-idf-template](https://github.com/espressif/esp-idf-template).
# Contributing Examples
If you have a new example you think we'd like, please consider sending it to us as a Pull Request.
In the ESP-IDF documentation, you can find a "Creating Examples" page which lays out the steps to creating a top quality example.