crrent_limiting

this program can converts up to 16bits in 5 bcd digits used on a/d converts

通过相应的选择可以提取出正序、负序、零序的电压电流(Positive, negative and zero sequence voltage-current extraction module)

说明：  AD9833在stm32f103的程序，模拟SPI通讯，便于移植(The program of AD9833 in STM32F103 simulates SPI communication and is easy to transplant.)

PDF with a schematic circuit for a Vending Machine Interface for PC

实现RC522射频芯片的读写，扣费，注册，和充值等功能，51单片机绝得可以用(RC522 RF chip to read and write, chargeback, registration, and recharge function, 51 MCU must have to be able to use)

说明：  ec11旋钮编程器C语言使用说明，希望给有用的人一些帮助(Ec11 knob programmer)

基于ATMEGA64单片机驱动MCP6S21可编程程控放大器的仿真加ICC源码。(ATMEGA64 microcontroller based programmable programmable amplifier driving MCP6S21 simulation plus ICC source.)

三星单片机资料比较少本程序实现S3F84U8看门狗-使能并喂狗(Samsung SCM relatively little information this program S3F84U8 Watchdog- enabled and feed the dog)

本系统以stm32f103单片机为核心，充分利用单片机丰富的内部和外部资源及数字温度传感器DS18B20的优越性能，结合LCD显示屏、降温风扇，实现对温度的多点测量、显示与控制。(This system takes STM32F103 as the core, makes full use of the abundant internal and external resources of the single chip microcomputer and the superiority of digital temperature sensor DS18B20, combines the LCD display screen and cooling fan to realize the multi-point measurement, display and control of temperature.)

一个用AVR单片机ATmega8515输出SPWM波形并驱动一个LED渐亮渐灭的示范程序，输出波形的占空比和频率显示在1602液晶屏上，编译环境Code Vision AVR(AVR with a ATmega8515 SPWM output waveform and an LED driver gradually Liang gradually eliminate the program, the duty cycle output waveform and frequency displayed on the LCD screen 1602, Build Environment Code Vision AVR)