Campus automation using PIC microcontrollers

Key Words: PIC, Ethernet, Internet In this project, a control system, which can communicate through internet, has been designed. The project is supported theoretically so that the basics of the system can be understood better. In the theoretical part, the advantages of the bus structures are examined for microcontroller based systems by comparing Ethernet and CAN Bus structures. Thus, it is shown why Ethernet is the best for our microcontroller based system and it is explained which microcontroller based systems are better for using CAN Bus. Generally, computer based structures are used in communication of internet based control systems. Serial port or parallel port is used as a window between control systems and computers. As known, a computer based control system costs much more than needed for a control system. In this project, a microcontroller based control system, which do not need a computer and communicates through Ethernet, has been developed. The developed system is a microcontroller based control system which works through Ethernet in a Server/Client structure. Using Server module, querying can be done to get information of devices from a Client and it is possible to send a command to change the status of a device on a Client. In this project, a Client can control 4 different devices: Turnstile, Monitor, PC, LAN. It can be done to query the information for all devices over Server. This system supports 40 Clients to control. It is possible to control the system through internet because communication is made by TCP/IP in this development.