C code for DS1302 RTC control

c51语言入门教程.适合于初学者使用,通俗易懂-C51 Language Tutorial. suitable for beginners to use, easy to understand

89C2051 + 4-digit 7-SEG led + 4-key switch c源代码-89C2051 4-digit 7- SEG led 4-c switch key source

EMC的开发库 是单片机性价比高的选择 提高快速开发-EMC microcontroller development libraries are cost-effective option to enhance rapid development of high

动力环境监控系统 动力环境监控系统-Dynamic driving force for environmental monitoring system environmental monitoring system

主从报警系统，单片机编程，是电子课程设计做的东西-master alarm system, microcontroller programming, electronic design courses do things

LUMINARY ARM的PWM代码（带死区控制）-LUMINARY ARM code of PWM (with dead-zone control)

在Proteus中主要用C51单片机、DS1302和DS18B20等芯片实现带温度显示的万年历。-It was mainly used the C51 microcontroller，DS1302，and DS18B20,etc in proteus, which had a temperature display of the calendar.

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.

用C8051F310的定时器来实现定时中断，进而实现在扬声器实现不同声音的输出-C8051F310 timer used to achieve regularly interrupted, and then realize the sound at different speaker output

用keil C编写的PWM程序,并用ISIS进行仿真-Keil C prepared using PWM procedures, and simulation ISIS