PC based control of remote systems is of growing importance in many industries. This project focused on the development of a GUI interface to control an industrial control system via a wireless link. The project has three main subsystems: the PC software interface, the wireless modems, and the controller scheduler on the microcontroller. The GUI is Java-based and presents an intuitive control interface. The wireless modems are off-the-shelf components and allow for unlicensed operation in the 900 MHz band via spread spectrum. Finally, the irrigation scheduler was written in C and runs on a Hitachi microcontroller. The primary benefit of this project is the conversion of the user interface from a cumbersome hardware interface to a software interface. This will permit faster redevelopment of specialized interfaces and will provide many cost savings opportunities.
 

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