The system uses a single chip AT89S52 as the control center for electronic scale basic control functions. The hardware of the system, including the minimum system board, data acquisition, man-machine interface of three parts. Minimum system component is extended to external data memory, data acquisition in part by the pressure sensor, signal processing and the first class A/D conversion parts. Man-machine interface for the keyboard part, 128 64 dot matrix liquid crystal display, you can visually display Chinese, easy to use.

实用电子秤.doc

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