Description

Open hardware module for providing communications support via GPRS to embedded projects. The module can use any 2G network operating in the 850/900MHz or 1800/1900MHz spectrum. The modem features an audio link for voice calls and a TCP/IP stack for data transfer.

Documentation

Documentation for the module is available in the docs folder.

Various resources used to design the module are available in the resources folder.

Features

• MicroSIM connector
• 3.5mm jack with microphone
• status LED indicator
• two serial ports ( ATcommands on main serial port and support for daisy chaining a second UART device)
• standard u.FL connector for antenna
• standard ApolloIoT expansion header

Resources

You can find all necesary information to build or evaluate the module here:

• View 3D board render
• Fabrication files