`ESP RainMaker <https://rainmaker.espressif.com/>`_ is a complete solution for accelerated AIoT development. Using ESP RainMaker, you can create AIoT devices from the firmware to the integration with voice-assistant, phone apps and cloud backend.
`ESP-IoT-Solution <https://docs.espressif.com/projects/espressif-esp-iot-solution/en/latest/>`_ contains commonly used device drivers and code frameworks when developing IoT systems. The device drivers and code frameworks within the ESP-IoT-Solution are organized as separate components, allowing them to be easily integrated into an ESP-IDF project.
ESP-IoT-Solution includes:
* Device drivers for sensors, display, audio, GUI, input, actuators, etc.
* Framework and documentation for low power, security, storage, etc.
* Guide for Espressif open source solutions from practical application point.
The `ESP-Protocols <https://github.com/espressif/esp-protocols>`_ repository contains a collection of protocol components for ESP-IDF. The code within ESP-Protocols is organized into separate components, allowing them to be easily integrated into an ESP-IDF project. Additionally, each component is available in `IDF Component Registry <https://components.espressif.com/>`_.
*`esp_modem <https://components.espressif.com/component/espressif/esp_modem>`_ enables connectivity with GSM/LTE modems using AT commands or PPP protocol. See the `esp_modem documentation <https://docs.espressif.com/projects/esp-protocols/esp_modem/docs/latest/index.html>`_.
*`mdns <https://components.espressif.com/component/espressif/mdns>`_ (mDNS) is a multicast UDP service that is used to provide local network service and host discovery. See the `mdns documentation <https://docs.espressif.com/projects/esp-protocols/mdns/docs/latest/en/index.html>`_.
*`esp_websocket_client <https://components.espressif.com/component/espressif/esp_websocket_client>`_ is a managed component for ESP-IDF that contains implementation of WebSocket protocol client for ESP32. See the `esp_websocket_client documentation <https://docs.espressif.com/projects/esp-protocols/esp_websocket_client/docs/latest/index.html>`_. For detailes of WebSocket protocol client, see `WebSocket_protocol_client <https://datatracker.ietf.org/doc/html/rfc6455>`_.
*`asio <https://components.espressif.com/component/espressif/asio>`_ is a cross-platform C++ library, see https://think-async.com/Asio/. It provides a consistent asynchronous model using a modern C++ approach. See the `asio documentation <https://docs.espressif.com/projects/esp-protocols/asio/docs/latest/index.html>`_.
The `ESP-BSP <https://github.com/espressif/esp-bsp>`_ repository contains Board Support Packages (BSPs) for various Espressif's and third-party development boards. BSPs help to quickly get started with a supported board. Usually they contain pinout definition and helper functions that will initialize peripherals for the specific board. Additionally, the BSPs contain drivers for external chips populated on the development board, such as sensors, displays, audio codecs, etc.
`ESP-IDF-CXX <https://github.com/espressif/esp-idf-cxx>`_ contains C++ wrappers for part of ESP-IDF. The focuses are on ease of use, safety, automatic resource management. They also move error checking from runtime to compile time to prevent running failure. There are C++ classes for ESP-Timer, I2C, SPI, GPIO and other peripherals or features of ESP-IDF. ESP-IDF-CXX is `available as a component <https://components.espressif.com/components/espressif/esp-idf-cxx>`_ from the component registry. Please check the project's `README.md <https://github.com/espressif/esp-idf-cxx/blob/main/README.md>`_ for more information.