• Journal of the Korea Society of Computer and Information
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• v.19 no.9
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• pp.39-44
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• 2014

In this paper, we study the light pen emulator implementation that can be used in industrial computer. For use in industrial control field, an input device of an industrial machine is an electronic pen is usually used, but now many cases, a light pen cannot be used to the computer. In this study, the light pen emulator to substitute for the function that is available to the peripheral device on the PC, now. So we want to increase the utilization of industrial computer in this research. The light pen emulator was designed by USB HOST, CPLD and MPU. Light pen signal, after interpret the input from the touch screen and mouse and USB system data, was output by calculating screen coordinates. As a result, we showed that it is possible to use the computer in a variety of industrial devices such as a mouse, digitizer, touch screen, stylus, and designed emulator.