CoveragePcontrolPinPsensorPnetworks

基于单片机的火车测速系统源程序。利用单片机STC89C52系统实现列车行驶速度测量转换和LCD液晶显示。同时实现列车行驶方向判断和指示，键盘设定速度上下限，当速度超限时给出超速报警提示。(Train speed system based on single chip source, using SCM STC89C52 trains speed measurement system to achieve conversion and LCD display. While achieving the train driving directions judgment and instructions, keyboard set speed limit, when the speed exceeds the limit given speeding alarm.)

单片机HUFFMAN压缩算法的研究与实现，有在单片机上进行开发的同学可以下载看看！(Huffman compression algorithm Singlechip Research and Implementation, has carried out development in SCM students can download to see!)

一个nokia5110液晶的显示程序，用于51单片机，能方便的控制显示内容以及位置。(A nokia5110 LCD display program for 51, can easily control the display content, and location.)

基于51单片机的计算器程序开发，C语言环境，上手容易，强烈推荐(Based on 51 single chip computer program development, C language environment, easy to hand, strongly recommended)

STM32F207 UCOSIII LWIP1.3.2

AD9833的编程方法，通过设置一定的参数，可得到DDS(AD9833 programming method, by setting certain parameters, obtained DDS)

说明：  PIC16f1947驱动TM1620数码管芯片(PIC16f1947 Drives TM1620 Digital Tube Chip)

Abstract—Selection combining cascaded with maximum-ratio combining (SC/MRC), which is particularly useful when site diversity is available, combined with low-density parity-check (LDPC) codes is able to combat the effects of fading. The biterror rate (BER) expressions of uncoded SC/MRC and SC/MRC with LDPC codes over an independent and identically distributed Rayleigh-fading channel are derived based on the Gaussian approximation approach. These expressions are also applicable to the selection combining and maximum-ratio combining as special cases. The derived expressions are in good agreement with simulation results and approach the density evolution (DE) thresholds. These expressions are able to achieve a significant reduction in computational time with a reasonable accuracy for analyzing the BER performance as compared to simulations and DE.

光电传感器控制源码，非常实用，大家下载下来学习一下(Photoelectric Sensor Control Source Code)

视频解码和视频消除奇偶场，基于freeScale MX27(VIDEO decode and combine odd and even image, based on IMX27)