小型电子秤的设计及实现

电子秤是日常生活中称重的必备产品，以简洁方便、称量精确而著称。文章设计的小型电子秤以AT89C52单片机为控制核心，通过ADC0804的数据采集、前端信号放大电路设计、按键人机交互界面和系统电源四大部分的模块化设计，实现了称重、显示、设置日期和重置单价以及超重显示功能。由于系统资源丰富，还可以方便地拓展其应用。

Design and Implementation of Small Electronic Scale

Electronic scale are weighing the necessary products in daily life. It is characterized by simple and convenient, accurate weighing. This paper designed a small electronic scale. The control core is the AT89C52 microcontroller. In four most of the modular design mainly includes the ADC0804 data acquisition, signal amplification circuit, front end of key man-machine interface and power supply system. It have a weighing, display, set the date and reset unit price and overweight display function. Due to the system resource rich, system convenient to extend its application.