DigitalMeter_src

stm32的一些程序，其中包括一路pwm生成，一路是pwm捕获，一路接受一路捕获(Then use the display show the duty ratio and frequency )

基于VC++的，以操作文件的方式（CreateFile,WirteFile,ReadFile）来操作串口实现的射频卡门禁系统，实现了包括读卡写卡，寻卡防冲突等功能。(Based VC++ in order to manipulate papers (CreateFile, WirteFile, ReadFile) to operate the serial interface of the RF card access control systems, including the realization of the card reader to write, look for cards anti-collision function.)

说明：  UPS的电路和制作教程 全部调试通过 包括sch和pcb(UPS circuit and produce all debug through the tutorial)

实现小波算法，FFT以及滤波器,以及许多数学计算常用函数(this file complete wave,fft,filter and math function)

Solution Manual for Balanis Advanced Engineering Electromagnetics..DJVU document

使用MSP430F5438单片机和HC-SR04超声波模块，1602显示屏块实现的超声波测距，精确到厘米。(The use of MSP430F5438 microcontroller and HC-SR04 ultrasonic module, ultrasonic ranging 1602 display block realization, accurate to centimeters. )

反射式血氧（SPO2）计算，包括基线滤波，脉搏波特征点提取，R值计算，可移植到单片机（STM32）(Reflective oximetry (SPO2) calculations, including baseline filtering, pulse wave feature point extraction, R value calculation, can be transplanted to the microcontroller (STM32))

STC90C516RD+单片机外扩彩屏模块的现实图片程序，C语言编写(STC90C516RD+ chip color expansion module, the reality outside the picture process, C language)

RN8209C及D初始化及UART通讯参考程序(RN8209C and D initialization and UART communication reference program)

MSP430相关工具内含 MSP430BSL下载器，430波特率计算器，C430编译器的诊断信息等等(MSP430 related tools include MSP430BSL downloader, 430 baud rate calculator, diagnostic information of C430 compiler and so on.)