shuangkui002

线路通断检测器的设计： 1．用压电陶瓷蜂鸣片作为电声元件。 2．用两根导线作为测试探针 3．线路通断是通过测试电阻的大小来判断，有以下三种情况： （1）若150Ω<Rx<900Ω，则蜂鸣片不发出声响。 （2）若Rx>900Ω或者Rx<150Ω，则蜂鸣片发出间歇式的滴－滴声响。 以上各临界阻值（150Ω和900Ω），允许误差±10％ 4．＋15V直流稳压电源需要设计。 (Line-off detector design: 1. Piezoelectric ceramic buzzer as the electro-acoustic components. 2. As a test probe with two wires 3. Lines off by testing the resistance to determine the size, the following three conditions: (1) If 150Ω <Rx <900Ω, the buzzer is not audible. (2) If Rx> 900Ω or Rx <150Ω, then the buzzer sent intermittent drip- drip sound. Above the critical resistance (150Ω and 900Ω), tolerance ± 10 4.+15 V DC power supply need to design. )

这是原创的基于PIC16F877A单片机的读SD卡文件系统程序源代码(This is the original PIC16F877A microcontroller-based SD card file system read source code)

无线传感器网络tinyos仿真实例CoapBlip源代码文件(Wireless sensor network simulation example tinyos CoapBlip source code files)

lcd_show c51程序，显示部分C语言程序(lcd_show decoder procedures, as some C language program)

led fleshing in use 8051

thesis on cognitive radio

说明：  HDMI 1.3规范英文版，主要介绍HDMI的协议(HDMI 1.3 specification in English, introduces the HDMI protocol)

12864的液晶程序。51单片机开发的C代码，便于移植(12864 LCD program. 51 MCU development of C code, portable)

基于51单片机实现电压表功能的protues仿真(Protues simulation of voltmeter function based on 51 single chip microcomputer)

SSD2119触摸屏的控制器资料，是英文的，适合240*320的tft液晶(SSD2119 controller touch screen information is in English, suitable for LCD 240* 320 tft)