时针芯片DS12C887a的C51底层程序

MSC51单片机学习点燃LED，C51编程-MSC51 Singlechip learning lit LED, C51 Programming

单片机的应用及其原理-Theory and Application

此源码利用单片机实现智能信号发生器，借鉴借鉴。-use of this source SCM intelligent signal generator, use reference.

C8051F04x单片机可变周期PWM脉宽调制。-C8051F04x Singlechip variable pulse width modulation PWM cycle.

使用protel99软件编辑的原理电路图，希望对各位有助于电路图的学习和开发-The use of the principle of circuit protel99 software editor, in the hope you will help the study and development of circuit

使用AT89C2051的红处遥控窗帘 作者：徐福成 　　本文介绍一款使用微电脑管理的、红外遥控器控制的多功能窗帘控制器。该窗帘控制器采用 89C2051 单片机的最小系统设计，控制一个 220V 的可逆、变速电动机控制窗帘的拉开和关闭。 　　窗帘控制器可以使用红外遥控器进行远程手动开、手动关和手动停控制；可以执行事先输入的开启时间和关闭时间进行时间控制；还可以根据室外环境亮度实现环境亮度光控。三种工作方式可以方便地进行选择，当选择时间控制的方案时，数码管还能显示当时小时和分钟时间，不过时间数据只能顺序显示，显示一遍后，略等片刻再显示下一遍时间。另外、电机拉动窗帘的工作的时间长度，电机工作的时候是否有鸣响提示，以及光控状态下环境亮度的控制参数的调整等等都可以通过遥控器进行设置。-use of the red remote control curtain Department Author : Xu cost of introducing the new management of the use of microcomputer, infrared remote control of the multi-function controller curtains. The curtain controller 89C2051 the minimum system design, control of a 220V reversible, variable speed motor control and opened the curtains closed. Curtain controller can use infrared remote control for remote manual open, manual clearance and stopped manually control; Input can be implemented prior to the opening time and the closing time to time control; Also under the outdoor environment can achieve environmental brightness optical brightness control. T

用可调电阻调节电压值作为模拟温度的输入量，当温度低于30℃时，发出长嘀报警声和光报警，当温度高于60℃时，发出短嘀报警声和光报警。测量的温度范围在0－99℃。-Adjustable voltage regulator with resistance values of the input analog temperature, when the temperature is below 30 ℃, the issue of longalarm sound and light alarm, when the temperature is higher than 60 ℃, short issuedalarm sound and light alarm. Measurement of the temperature range of 0-99 ℃.

关于ADuC845中URAT功能所写的小程序-On the ADuC845 in URAT function of small programs written by

基于H83664的空调控制模拟系统 aircondition.c、intprg.c -based on the simulation of air-conditioning control system aircondition.c. intprg.c

利用51单片机串行口，在结合74LS164为驱动的数码管串口显示。主要实现顺序移动。-use SCM serial port, in the context of 74LS164-driven serial digital control display. Main sequence mobile.