DotArrayBataToBMP

说明：  基于stm32f103的超声波测距程序，利用keil编写(Ultrasonic ranging based on STM32F103)

倍福Beckhoff TWINCAT2 获取系统时间功能块(Beckhoff TWINCAT2 gets the system time function block.)

说明：  单片机实现RS485串口通信的基本原理，非常好理解，好好学习(The basic principle of RS485 serial communication realized by single chip microcomputer)

Analog Circuits Cookbook

-lpc2148 -sdcard -vms board

这是基于STC89C52编程开发的脉搏检测器，里面包含PCB原理图，程序代码和一篇参考论文。(This is based programming development STC89C52 pulse detector, which contains PCB schematics, program code and a reference papers.)

风力摆是一种通过风机作为唯一动力驱动的装置,深入研究该系统对空间飞行器、四旋翼无人机的运动状态和卫星姿态控制具有重大意义。(Wind pendulum is a device driven by wind turbine as the only power. It is of great significance to study the motion state of space vehicle, quad-rotor UAV and satellite attitude control.)

说明：  实现正常时钟功能，带时间日期，三组闹钟，键盘显示(流程图，配合程序使用)(Realize normal clock function, with time and date, three sets of alarm clocks, keyboard display)

SD Specifications_Ver3.01

双电源转换开关自动转换程序，能实现断相检测过压，欠压检测(Dual power switch automatic conversion process, to achieve the Phase-cut overvoltage, undervoltage detection)