LwGSM commands parser is generic, platform independent, library for communicating with GSM modules from SIMcom company using AT commands. Module is written in ANSI C (C89) and is independent from used platform. Its main targets are embedded system devices like ARM Cortex-M, AVR, PIC and more.

Features

• Supports SIM800/900 (2G) or SIM7000/SIM7020 (NB-IoT) 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 ESP 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

Read documentation & download library Open Github