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esp-idf/examples
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Omar Chebib 779e7400b0 uart: uart_set_pin function will now use IOMUX whenever possible 
By using IOMUX instead of GPIO Matrix for UART, it is now possible
on ESP32 boards to use the UART as a wake up source even if it is
not used as a console.
For other boards where this issue was not present, using IOMUX has
the advantage to be faster than using GPIO matrix, so a highest
baudrate can be used
2021-08-04 12:48:30 +08:00
..
bluetooth Merge branch 'bugfix/typo_in_hci_uart_example_for_esp32c3' into 'master' 2021-07-23 08:30:55 +00:00
build_system/cmake feature/update_cmake: Update of outdated CMake version 3.16.4->3.20.3 and CCache version 3.7->4.3 in tools.json 2021-07-26 21:30:59 +08:00
common_components examples: Update Ethernet examples to use new PHY LAN87xx init function 2021-07-28 19:34:05 +08:00
custom_bootloader bootloader: override the 2nd stage bootloader 2021-07-05 10:25:32 +08:00
cxx [cxx]: GPIO CXX wrappers, experiemental CI rule 2021-08-03 19:51:21 +08:00
ethernet Merge branch 'feature/lan87xx_support' into 'master' 2021-07-28 16:27:58 +00:00
get-started Code cleanup. Bugfix after rebase with master. Formating. 2021-05-13 15:03:40 +03:00
mesh esp_wifi_mesh: add non mesh connections access 2021-07-30 22:17:30 +08:00
openthread Merge branch 'feature/otbr-1.3' into 'master' 2021-07-21 08:01:26 +00:00
peripherals uart: uart_set_pin function will now use IOMUX whenever possible 2021-08-04 12:48:30 +08:00
protocols Examples: esp_modem_dce_service: Make esp_modem_dce_handle_* functions static 2021-07-26 11:48:15 +02:00
provisioning ESP32C3: Fix for provisioning failure with ble transport mode and bluedriod stack 2021-07-22 15:37:46 +08:00
security/flash_encryption spi_flash: refactoring flash encryption into new api 2021-04-25 17:09:25 +08:00
storage spi_flash: add support for 32Mbit address GD flash, for GD25Q256 2021-07-02 17:13:51 +08:00
system esp_common: Add API for IPC to run small pieces of code on the other CPU, in the context of the level 4 interrupt 2021-08-03 14:35:29 +08:00
wifi examples: Update Ethernet examples to use new PHY LAN87xx init function 2021-07-28 19:34:05 +08:00
README.md timer group: add timer group and WDT support for ESP32S3 2021-07-06 16:21:43 +08:00

README.md

Examples

This directory contains a range of example ESP-IDF projects. These examples are intended to demonstrate parts of the 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 Classic BT, BLE and coex examples using default Bluedroid host stack.
  • bluetooth/nimble BLE examples using NimBLE host stack.
  • bluetooth/esp_ble_mesh ESP BLE Mesh examples.
  • bluetooth/hci HCI transport (VHCI and HCI UART) examples.
  • build_system Examples of build system features.
  • cxx C++ language utilization examples and experimental components.
  • ethernet Ethernet network examples.
  • get-started Simple examples with minimal functionality. Good start point for beginners.
  • mesh Wi-Fi Mesh examples.
  • openthread OpenThread examples.
  • peripherals Examples showing driver functionality for the various onboard ESP32 peripherals.
  • protocols Examples showing network protocol interactions.
  • provisioning Wi-Fi provisioning examples.
  • security Examples about security features.
  • storage Examples showing data storage methods using SPI flash, external storage like the SD/MMC interface and flash partitioning.
  • system Demonstrates some internal chip features, or debugging & development tools.
  • wifi Advanced Wi-Fi features (For network protocol examples, see protocols instead.)

In addition to these examples, commmon_components directory contains code shared by several examples.

Using Examples

Before building an example, be sure to follow the ESP-IDF Getting Started Guide to ensure you have the required development environment.

Building an example is the same as building any other project:

  • Change into the directory of the new example you'd like to build.
  • Run idf.py set-target TARGET to select the correct chip target to build before opening the project configuration menu. By default the target is esp32. For all options see idf.py set-target --help
  • 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.

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.