basic compiler for 8051

芯片PCF8951共有四个A/D输入通道：AD0，AD1，AD2，AD3,分别与四个电位器(R1,R2,R3,R4)连接，用以调节电位器的输出电压。其中AD0通道既可测量电位器输出电压，也可用于测量从J1插座输入的外接电压，须用开关J2加以选择。J4插座提供由PCF8591输出的时钟方波信号。SAA1064驱动四个数码管显示一路AD转换后得到的数据。-PCF8951 chip, there are four A/D input channels: AD0, AD1, AD2, AD3, respectively, with four potentiometers (R1, R2, R3, R4) connected to regulate the output voltage potential. AD0 channel which can be measured potentiometer output voltage can also be used to measure the input from the J1 socket external voltage, to be used to select switch J2. J4 socket output from the PCF8591 clock square wave signal. SAA1064 drivers of four digital display along after AD conversion data.

用1602LCD液晶屏做的电子表。-1602LCD LCD screen to do with the electronic form.

PCA CEX0为高速输出模式PCA CEX4 捕捉模式 测试程序-PCA CEX0 for high-speed output mode to capture mode PCA CEX4 test procedures

内容： 1、试验目的：了解按键的扫描原理 2、实现现象：同时按键抢答，先按的键有效，其他按键锁死 复位后重新开始抢答 3、硬件要求：按键 LED灯 原理：最先按下按键者有效，其他均无效-Contents: 1, test Objective: To understand the key principles of scanning two to achieve phenomenon: the key to answer in the same time, press the key and effective, other key-lock reset and re-start to answer in 3, the hardware requirements: button LED lights principle: first press the keys are valid, others are null and void

ATMEL的24C04-512的通用应用程序，实际应用完全可行可靠的，稍加修改就可用在自己的C文档中！-ATMEL

基于51单片机的CA1602A液晶显示,串行传输,键盘编码等源代码-Based on MCU 51 CA1602A liquid crystal display, serial transmission, the keyboard coding source code

瑞士盛世瑞恩公司的温湿度传感器SHT11的温湿度测量的例子程序。- Swiss prosperous times auspicious graciousness company s warm humidity sensor SHT11 warm humidity survey example procedure.

支持SD卡的MP3电路图,powerpcb4.0格式.使用AVR单片机-support the SD card MP3 circuit diagrams powerpcb4.0 format. Use AVR

MSP430F413的各模块实例程序源代码，很方便调试。-MSP430F413‘demo

颜色分辨　芯片ＴＣＳ２３０　读取白色发光二极管的亮度及颜色植转化后输出-chip TCS230 color perception read white LED brightness and color conversion plant output