/esp-at

AT application for ESP32 ESP-IDF & ESP32C3 ESP-IDF & ESP8266 ESP8266_RTOS_SDK

Primary LanguageCOtherNOASSERTION

ESP-AT

Documentation Status

esp-at project was started and powered by Espressif Systems (@espressif) as an official project, for the ESP8266, ESP32, ESP32-C3, and ESP32-S2 Series SoCs provided for Windows, Linux, and macOS.
It is now supported and maintained by Espressif esp-at team (@esp-at).

esp-at is Free Software under a MIT license.

Introduction

Espressif Wi-Fi and Bluetooth® chipsets are often used as add-on modules to seamlessly integrate wireless connectivity features into new and existing products.
In an effort to facilitate this and cut down on engineering costs, Espressif Systems has developed a set of AT commands that can be used to interface with Espressif products.

"AT" means 'attention'. Each command string is prefixed with "AT", and a number of discrete commands can be concatenated after the "AT".

The AT command firmware allows for rapid integration by providing:

  • In-built TCP/IP stack and data buffering
  • Easy integration with resource-constrained host platforms
  • Easy-to-parse command-response protocols
  • Customized, user-defined AT commands

Resources

Project Roadmap

  1. The next version of ESP-AT firmware (v2.3.0.0) is planned to be released in October 2021. At present, only ESP32-C3 series firmware is planned to be released, and ESP32-C3 firmware would support Bluetooth LE.

  2. ESP-AT Support Policy for ESP Chip Series

  • ESP32-C3 Series

    • Preferred recommended chip by ESP-AT
    • Released version is recommended: v2.2.0.0_esp32c3
  • ESP32 Series

    • Released version is recommended: v2.2.0.0_esp32
    • The next version of ESP-AT firmware (v2.3.0.0) for ESP32 is in preparatory stage, but no an estimated time of release.
  • ESP8266 Series

    • ESP32-C3 is recommended instead
    • ESP-AT will not release the major version for ESP8266.
    • ESP-AT no longer adds new features to ESP8266.
    • v2.2.1.0_esp8266 is the last version of ESP-AT for ESP8266, corresponding to branch: release/v2.2.0.0_esp8266.
    • ESP-AT will regularly update release/v2.2.0.0_esp8266 branch for ESP8266. Update includes vital bugfix and security repair.
  • ESP32-S2 Series

    • ESP32-C3 is recommended instead
    • ESP-AT will not release the major version for ESP32-S2.
    • ESP-AT no longer adds new features to ESP32-S2.
    • v2.1.0.0_esp32s2 is the last version of ESP-AT for ESP32-S2, corresponding to branch: release/v2.1.0.0_esp32s2.
    • ESP-AT will regularly update release/v2.2.0.0_esp32 branch for ESP32-S2. Update includes vital bugfix and security repair.

ESP-AT 项目

esp-at 作为由 Espressif Systems (@espressif) 发起和提供技术支持的官方项目,适用于 Windows、Linux、macOS 上的 ESP8266ESP32ESP32-C3、和 ESP32-S2 系列芯片。
当前该项目由 Espressif esp-at 团队 (@esp-at) 负责技术支持和维护。

esp-at 是 MIT 许可证下的免费软件。

简介

乐鑫 Wi-Fi 和蓝牙芯片可以用作附加模块,完美集成在其他现有产品上,提供无线通讯功能。 为降低客户开发成本,乐鑫开发了一套 AT 指令集,方便客户简单快速地使用 AT 指令来控制芯片。

乐鑫提供的 AT 指令固件具有以下特色,利于芯片集成到应用中:

  • 内置 TCP/IP 堆栈和数据缓冲
  • 能便捷地集成到资源受限的主机平台中
  • 主机对指令的回应易于解析
  • 用户可自定义 AT 指令

资源

项目路线图

  1. 下一版本 ESP-AT 固件 (v2.3.0.0),计划在 2021 年 10 月发布。当前仅计划发布 ESP32-C3 系列固件,ESP32-C3 固件将支持低功耗蓝牙。

  2. ESP-AT 对不同芯片系列支持策略

  • ESP32-C3 系列

  • ESP32 系列

    • 推荐使用发布版本:v2.2.0.0_esp32
    • ESP32 下一版本 ESP-AT 固件 (v2.3.0.0) 在开发准备阶段,但暂无预计的发布时间
  • ESP8266 系列

    • 推荐使用 ESP32-C3 芯片
    • ESP-AT 不再为 ESP8266 添加新功能
    • ESP-AT 不再为 ESP8266 发布大版本
    • v2.2.1.0_esp8266 是 ESP-AT 为 ESP8266 发布的最后一个版本,对应分支为 release/v2.2.0.0_esp8266
    • ESP-AT 将定期在 release/v2.2.0.0_esp8266 分支为 ESP8266 进行重要 bug 修复,安全修补等更新
  • ESP32-S2 系列

    • 推荐使用 ESP32-C3 芯片
    • ESP-AT 不再为 ESP32-S2 添加新功能
    • ESP-AT 不再为 ESP32-S2 发布大版本
    • v2.1.0.0_esp32s2 是 ESP-AT 为 ESP32-S2 发布的最后一个版本,对应分支为 release/v2.1.0.0_esp32s2
    • ESP-AT 将定期在 release/v2.2.0.0_esp32 分支为 ESP32-S2 进行重要 bug 修复,安全修补等更新