Open AT® Applications

Open AT® applications are developed and built using the Open AT® IDE, then downloaded and stored on Wireless CPUs. The compiled object code runs under the control of the Open AT® Operating System. Applications can perform all GSM/GPRS functions. In addition, they can control or monitor the variety of I/O interfaces provided by the Wireless CPUs. As applications are written in standard ANSI C, with powerful function calls for access to hardware resources, it is possible to manipulate and store data prior to transfer over GSM/GPRS or local I/O.

Open AT® Applications:

• Will run automatically at power up

• Can be updated over a GSM data call or over GPRS (Download Over The Air)

• Full access to RAM, FLASH, I/O, GSM functions and up to 32 timers, as well as a full set of C run time libraries including maths and string libraries

• High level structured API for a rapid development cycle

Example Open AT® application source code can be viewed here. This example shows, in the most basic form, a method of changing I/O states upon receipt of an incoming SMS.