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Lightweight GSM-AT parser

LwGSM is lightweight, platform independent, AT commands parser, targeting for communicion with SIMCOM based modules SIM800/SIM900 or SIM70xx. Module is written in C99 and is independent from used platform. 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.

Read first: Documentation

Features

  • Supports SIM800/SIM900 (2G) and SIM7000/SIM7020 (NB-Iot LTE) modules
  • Platform independent and very easy to port
    • Development of library under Win32 platform
    • Provided examples for ARM Cortex-M or Win32 platforms
  • Written in C language (C99)
  • Allows different configurations to optimize user requirements
  • Supports implementation with operating systems with advanced inter-thread communications
    • Currently only OS mode is supported
    • 2 different threads handling user data and received data
      • First (producer) thread (collects user commands from user threads and starts the command processing)
      • Second (process) thread reads the data from GSM device and does the job accordingly
  • Allows sequential API for connections in client and server mode
  • Includes several applications built on top of library:
    • MQTT client for MQTT connection
  • User friendly MIT license

Contribute

Fresh contributions are always welcome. Simple instructions to proceed::

  1. Fork Github repository
  2. Respect C style & coding rules used by the library
  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