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This application note presents the recovery mechanism of the Open AT Application Framework. The goal of the mechanism is to avoid infinite and uncontrolled reset loops in the firmware.

This application note describes how to interface an external battery charging solution with an AirPrime wireless module. It is useful if you have the following requirements: Li-Polymer battery used Possible drops of the battery voltage below its over discharge threshold (~2.8V) Only a DC voltage source available to charge the battery (impossible to connect an external charger)

This page contains the release notes of the Open AT Developer Studio 2.3.2

This book will guide you through the working of Open AT with detailed step-by-step instructions. This book is also the support of the Open AT training organized regularly by Sierra Wireless, allowing developers to easily discover the world of Open AT.

This application note describes how to design a dual SIM solution. This function is used to switch between two SIMs. Two GPIOs are used to control the hardware switching between two SIMs.

AT Command Parser source code demonstrates and provides re-usable code showing how to subscribe and parser responses to both unsolicted and sent AT commands.

This application note describes the three types of bus services - SPI, I2C, and parallel bus - used to communicate between two or more connected devices.

This application note gives an overview of the CMUX feature for multiplexing data over serial link, and describes the Sierra Wireless implementation of CMUX. The CMUX feature allows multiple virtual ports to be created on a physical serial link (3GPP TS 27.010).

Video tutorial showing step-by-step how to start a new project based on a sample code (e.g. Hello World ).

Video tutorial on new software package installation (e.g. new Open AT Application Framework release, new partner libraries, ...) in Developer Studio.

Video Tutorial on step-by-step Developer Studio installation for Open AT Application Framework