好的操作系统

89C51 单片机I_O 口模拟串行通信的实现方法--Simulate I_O serial port communication in 89C51 SCM.

这是关于按键显示的基本程序，主芯片仍是51单片机-This is on the button to display the basic procedures, main chip is still the single-chip 51

红外通信是利用950nm近红外波段的红外线作为传递信息的媒体，即通信信道。发送端采用脉时调制（PPM）方式，将二进制数字信号调制成某一频率的脉冲序列，并驱动红外发射管以光脉冲的形式发送出去；接收端将接收到的光脉转换成电信号，再经过放大、滤波等处理后送给解调电路进行解调，还原为二进制数字信号后输出。-Infrared communication is the use of near infrared 950nm infra-red as the transmission of information media, namely communication channel. The sending end when the use of pulse modulation (PPM) approach will be a binary digital signal into a frequency modulation of the pulse sequence, and driver fired infrared tube to the form of light pulses sent receiver will receive the pulse of light conversion to electrical signals , and then, after amplification, filtering and other treatment to the demodulation circuit after demodulation, reduced to a binary digital signal after the output.

学习51单片机必备的一些C语言基础知识，对C语言不熟悉的朋友会有一定的帮助-51 Singlechip necessary to learn some basic knowledge of C language, on the C language are not familiar with our friends will help

Medwin v2.39,51单片机开发利器-Medwin v2.39, 51 MCU Development weapon

此程序含有仿真电路图和C语言程序，希望能够对单片机爱好者有用-This program contains a circuit diagram and the C language simulation procedures can be useful for single-chip lovers

基于18b20和单片机控制的温度采集及显示系统-18b20-based single-chip microcomputer to control the temperature and the acquisition and display system

程控增益线性脉冲放大器的设计。 设计了一种新型程控增益线性脉冲放大器。采用准高斯CR2RC2CR 成形电路结构,使用非易失性数字电位器和精密运放,使电路结构大大简化,抗干扰能力强,增益多级连续变化平稳,且具有温漂低、脉冲线性好等特点-Programmable gain linear pulse amplifier design. Design a new type of programmable gain linear pulse amplifier. Using quasi-Gaussian CR2RC2CR forming circuit structure, the use of non-volatile digital potentiometers and precision operational amplifier, so that greatly simplify the circuit structure, anti-jamming, multi-stage continuously variable gain stable, and has a low drift, pulse linear good characteristics

AVR单片机的BLDC无位置传感器控制的程序源码-AVR Microcontroller BLDC sensorless control program source code

pwm的输出实验，运用内部数模转换器产生PWM波并输出-pwm output of experiments, the use of PWM wave generated within the DAC and output