The system uses a single-chip AT89S52 for the control of the core, the realization of the electronic scale of the basic control functions. System hardware components, including the smallest system board, data acquisition, the three most interactive interface. The smallest parts of the system is mainly the expansion of the external data memory, data acquisition in part by the pressure sensors, signal pre-processing and A/D conversion parts. Part of man-machine interface for keyboard input, 12,864 dot-matrix liquid crystal display can show the Chinese intuitive and easy to use.

单片机电子秤设计.doc

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