modeling-of-microgrids-in-Europe

说明：  使用TM1638驱动共阳数码管显示，Keil4工程(Using tm1638 to drive the display of common positive nixie tube)

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

8098单片机的外部中断 又EXTINT输入的外部中断(8098 external interrupt again EXTINT the external interrupt input)

风机控制器智能程序4,请大家自己使用,千万不外传!(Intelligent fan controller program 4, let us own use, do not Gaiden!)

数码管动态移位显示，值得初学都学习和借鉴，中间有注释(Digital dynamic display)

UCOS3 消息传递 ，实验，基于STM32F103ZET6(UCOS3 message passing, experiment, based on STM32F103ZET6)

基于PIC16F877A的ht6221红外解码程序，测试通过(program based on pic16f877a，pass)

滤波器广泛应用于数字信号处理、通信、自动控制领域,但设计可变宽频带有源滤波器则比较困难。利用单片机控制参数可编程的双二阶通用开关电容有源滤波器,精确设置有源滤波器的中心频率f，品质因数Q及有源滤波器的工作方式。本系统主要分为两个部分:即程控滤波器和程控放大器。程控放大器电压增益为40dB，通过单片机控制DA进行分压，可精确实现要求的10dB步进，误差小于0.5 ，通带为100Hz-500KHz，输入电压峰－峰值范围为10mV，在输入范围内无明显失真。由MAX264为核心的滤波器，可设置为高通、低通滤波器。通过单片机直接给出控制频率，使-3dB截止频率在1KHz-20KHz内可调，步进1KHz，误差小于1 。整个系统以52单片机为控制核心，电路简单，性能稳定，且具有较高精度，滤波参数调节通过单片机控制，较为方便。(Filters are widely used in digital signal processing, communications, automatic control area, but the design variable wideband active filter is more difficult. Control parameters using single-chip programmable universal switched-capacitor biquad active filter, active filter accurately set the center frequency f, quality factor Q and the active filter works. The system is mainly divided into two parts: the program-controlled filters and programmable amplifiers. Programmable amplifier voltage gain of 40dB, the DA through the partial pressure of single-chip control, can accurately achieve the required 10dB step, the error is less than 0.5 , passband to 100Hz-500KHz, input voltage peak- the range of 10mV, the input range no significant distortion. By the MAX264 as the core of filter can be set to high pass, low pass filter. Given directly by the microcontroller controls the frequency, the-3dB cutoff frequency at 1KHz-20KHz adjustable, step 1KHz, error is less than 1 . The entire system for)

三菱PLC模拟量输出,三菱PLC模拟量输出三菱PLC模拟量输出三菱PLC模拟量输出三菱PLC模拟量输出(Mitsubishi PLC analog output, analog output Mitsubishi PLC Mitsubishi PLC Mitsubishi PLC analog output Analog output Mitsubishi PLC analog output)

说明：  MCS51系列单片机实现的16X2的LCD的数据显示(MCS51 MCU series of 16X2 LCD data)