【摘要】 介绍了一种韩国三星公司生产的高性能 8位单片机S3F94 5 4。给出了以该单片机为核心的水位水温检测电路。分别介绍了一种通过串行发光二极管 (LED)显示驱动器MAX72 19与两个3位数码管构成的水位显示器和水温显示器、一种有多个电极的探测棒和与这些电极相连接的电阻网络构成的水位传感器以及与其相关的水位检测电路、一种由热敏电阻构成的水温传感器以及与其相关的水温检测电路 ;介绍了水位检测原理和水温检测原理 ;以及如何用单片机S3F94 5 4来完成检测和显示的过程 ,给出了各功能模块的程序流程。更多还原

【Abstract】 This paper introduces a kind of 8-bit microcomputer chip S3F9454 of high quality from Samsung Corporation,describes the water level and temperature measuring circuit diagram based on this microcomputer chip. It introduces respectively a kind of water level display and water temperature display using serial interface LED display drivers MAX7219 and two 3-digit displays;then a kind of water level sensor with measuring pole of multi-electrodes and a resistance network connected with these electrodes. We describe also a water level measuring circuit;a kind of water temperature sensor with thermistor,and water temperature measuring circuit. The water level measuring principle and water temperature measuring principle are introduced,and how to carry out the measurement and display with microcomputer chip S3F9454 is also introduced. The program flow chart of function modules are described.更多还原