Electronic clock MCU, 80C51, LED display. . Microcontroller interrupt timing.

用于步进电机的驱动.可以通过输出信号来控制步进电机的转速和角度控制.-For stepper motor driver. Can output signals to control the stepper motor speed and angle control.

这是CRC校验源码的分析，让你更了解CRC校验的原理-This is the CRC-source analysis and let you know more about the principles of the CRC

与MP3播放功能FOSS一起使用的控制器

单片机的串行口测试程序-MCU serial port test procedures

8051单片机控制Max7221实现动态显示数据-8051 Dynamic control of display data Max7221

环境测量系统 -Environment environment measurement system measurement system

用单片机读写图像显示芯片SAA7114H的程序，并且可以接受红灯信号以及线圈信号的程序-literacy MCU Image Display Chip SAA7114H procedures, and the red light signal can accept and process signals in the coil

实现公历与农历的转换一般采用查表法按日查表是速度最快的方法但51 单片机寻址能力有限不可能采用 按日查表的方法除按日查外我们可以通过按月查表和按年查表的方法再通过适当的计算来确定公历日所对应的 农历日期本文采用的是按年查表法最大限度地减少表格所占的程序空间-Limited can not be used In addition to a daily look-up table method of daily things that we can search through monthly and annual look-up table look-up table method and through the appropriate calculations to determine the calendar day corresponding to the Lunar date of this paper is the annual table look-up table method to minimize the space occupied by program

本装置是一个以HT46R71D 为主芯片，配合传感器组成的汽车轮胎气压检测装 置，最终取高三位有效值于LCD 显示，有四种显示单位供切换（Psi、Bar、Kpa、 Kgf/cm2）。本装置仅为参考范例，使用时，为提高准确度，建议多量测些组数 据来构建Sensor Output Voltage - Discharge Time (V-T)表格，并作相应校准。-This device is a HT46R71D-based chips, with sensors detecting vehicle tire pressure devices, and ultimately take the high-three RMS in LCD display, there are four types of display units for switching (Psi, Bar, Kpa, Kgf/cm2). Only reference to an example of the device, when used to improve the accuracy of the proposed多量measured set of data to build more Sensor Output Voltage- Discharge Time (VT) forms, and the corresponding calibration.