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Description: 本系统采用单片机 AT89S52 为控制核心，实现电子秤的基本控制功能。系统的硬件部分包括最小系统板，数据采集、人机交互界面三大部分。最小系统部分主要是扩展了外部数据存储器，数据采集部分由压力传感器、信号的前级处理和 A/D 转换部分组成。人机界面部分为键盘输入 ， 128 64 点阵式液晶显示，可以直观的显示中文，使用方便。-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.
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Size: 190464 |
Author: killer |
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