VIPMIS

基于si446X无线收发代码. 实现数据在1G以下频率的传送和接收(TRX function base on the si4463)

本系统以直流电流源为核心，AT89S52单片机为主控制器，通过键盘来设置直流电源的输出电流，设置步进等级可达1mA，并可由数码管显示实际输出电流值和电流设定值。本系统由单片机程控输出数字信号，经过D/A转换器（AD7543）输出模拟量，再经过运算放大器隔离放大，控制输出功率管的基极，随着功率管基极电压的变化而输出不同的电流。单片机系统还兼顾对恒流源进行实时监控，输出电流经过电流/电压转变后，通过A/D转换芯片，实时把模拟量转化为数据量，再经单片机分析处理， 通过数据形式的反馈环节，使电流更加稳定，这样构成稳定的压控电流源。实际测试结果表明，本系统输出电流稳定，不随负载和环境温度变化，并具有很高的精度，输出电流误差范围±5mA，输出电流可在20mA~2000mA范围内任意设定，因而可实际应用于需要高稳定度小功率恒流源的领域。(the system to DC current source to the core, MCU AT89S52 main controller, through the keyboard to set up DC power supply output current, set up to 1mA Stepping grades, digital control can be shown by the actual output current value and current setting. The system consists of programmable microcontroller digital signal output, after the D/A converters (AD7543) analog output. After Operational Amplifiers isolation, amplification and control of the output power base. With the power of the base voltage changes in the output current. SCM system also takes on the constant current source for real-time monitoring, after current output current/voltage changes, the A/D converter chip, real-time conversion from analog to the volume of data and then analyzed by the MCU, through data link in the )

产生不同占空比的PWM波，且采用矩阵键盘来实现的(failed to translate)

本文件是基于51单片机的电子门铃设计程序，并且附带有proteus的仿真文件，可帮助单片机爱好者更好地学习哦！(This document is based on 51 single-chip electronic doorbell design procedure, and with proteus simulation files, can help single-chip computer enthusiasts learn better!)

说明：  CC2530芯片的使用和无线传感器网络的构建——数据收发无线组网实验(The use of CC2530 chip and the construction of wireless sensor network)

STM32使用USB进行程序IAP升级的源程序，经过实际验证，非常好用(STM32 IAP upgrade using USB for program source code , very easy to use)

单片机的TCP_IP网络编程与应用,uIP ARP / ICMP / TCP协议的完全移植，可以稳定ping通单板，使用TCP服务器功能，连上单板的TCP服务器功能时（自定义端口1234），单板发出“Hello,how are you?”的问候。其后发出的字符单板都原样返回。有很好的学习和研究价值。(SCM TCP_IP network programming and applications, uIP ARP/ICMP/TCP protocol completely portable, you can ping the stabilization board, using TCP server function, even function on the board when the TCP server (custom port 1234), the board issued " Hello, how are you?" greetings. Subsequent issuance of the character board are returned unchanged. Have a good study and research value.)

这个包里面包含两个文件： 5日精通CSS层叠样式表.chm CSS2.0中文手册.chm(talk about css)

TCD1206 实现光源的采集，通过1549转换后传给单片机，单片机将数据通过串口传出( TCD1206 realize the collection source, through the 1549 conversion pass microcontroller, the microcontroller outgoing data through the serial port)

在opencv上实现了sfm功能，欢迎大家参考和使用(Implementation of SFM function in opencv)