Lightweight ESP-AT parser

LwESP is a lightweight ESP AT commands parser library to communicate with ESP8266, ESP32 and other ESP32-series (C2/C3/C6) Wi-Fi modules using AT commands. Module is written in C11 and is system platform agnostic. Its main targets are embedded system devices like ARM Cortex-M, AVR, PIC and others, but can easily work under Windows, Linux or MAC environments too.

Espressif module runs official AT Commands (esp-at) software and communicates with host device via UART or SPI communication protocol.

Follow documentation for more information on implementation and details.

Open documentation

Features

• Written in C (C11), compatible with stdint.h data types
• Supports latest ESP32, ESP32-C2, ESP32-C3, ESP32-C6 & ESP8266 AT software from Espressif Systems
• Platform independent and easy to port
  • Library is developed under Win32 platform
  • Available examples for ARM Cortex-M, Win32 or POSIX (mostly Linux) platforms
• Allows different configurations to optimize user requirements
• Supports operating-system implementations with advanced inter-thread communication (or RTOS)
  • Currently only OS mode is supported
  • Uses 2 different threads to process user input and received data
    • Producer thread collects user commands from application threads and starts command execution
    • Process thread processes received data from the ESP device
• Netconn-based sequential API for connections in client and server mode
• Includes several applications built on top of the library
  • HTTP server with dynamic files (file system) support
  • MQTT client
• Embeds other AT features, such as WPS management, custom DNS setup, hostname for DHCP, and ping
• Optional IPv6 support
• mDNS, SNTP time sync and SmartConfig provisioning modules
• System flash and manufacturing NVS read/write/erase access
• Optional CLI module with ready-made commands for common operations
• User friendly MIT license

Contribute

Fresh contributions are always welcome. Simple instructions to proceed:

1. Fork Github repository
2. Follow C style & coding rules and use clang-format to format the code
3. Create a pull request to develop branch with new features or bug fixes

Alternatively you may:

1. Report a bug
2. Ask for a feature request