lanxin

实现智能数字显示仪表。要求8位数码管显示（4位显示测量值，4位显示设定值），4输入按钮（功能选择、数码管选择、数字增加、数字减少），可设定上下限报警（蜂鸣器报警）。K型热电偶（镍铬-镍硅），测温范围为0℃~1000℃。采用比例-积分控制、并用晶闸管脉宽调制驱动1000W电加热器（电源电压为AC220V）。(Intelligent digital display instrument. Asked 8-bit digital display (4 shows measured values, four display settings), 4 input buttons (feature selection, the digital control options, the number increased, the number is reduced), upper and lower limits can be set to alarm (buzzer alarm ). K-type thermocouple (Ni-Cr and Ni- Si), temperature range is 0 ℃ ~ 1000 ℃. Proportional- integral control, and using thyristor PWM drive 1000W electric heater (power supply voltage is AC220V).)

4.5kW逆变电源的原理图和PCB文件（包含控制板、辅电电路和主电路）控制芯片为TDS1093(schematic and PCB documents (including control panel, auxiliary electric circuit and main circuit) of 4.5 kW inverter whose control chip is TDS1093)

说明：  用于stm32f103开发的工程，基本的功能都有。采用了多种方式编写代码，比较直观，移植更方便(For stm32f103 development of the project, the basic functions have.Various ways to write the code, more intuitive, more convenient migration)

定义一个Circle类，有数据成员Radius（半径），成员函数GetArea（），计算圆的面积，构造一个Circle的对象进行测试。(caculation the area of a circle)

pscad miro grid control

说明：  最初始的IAR编程（包含ccs,gcc的软件的初始程序）(Initial IAR Programming (Initial Programming of Software Containing ccs, gcc))

在Proteus环境下使用LM311电压比较器进行比较和整流。LM311电压比较器设计运行在更宽的电源电压，从标准的±15V运算放大器到单5V电源用于逻辑集成电路。 (LM311 compare shaping, using Proteus LM311 voltage comparator designed to operate over a wider supply voltage: 15V op amps from a standard to a single 5V power supply for the logic IC)

由单片机和DAC0832产生正弦波或三角波的程序。单片机和DAC0832可将频率进行分频的具体程序(Sine or triangle wave and DAC0832 procedures generated by the microcontroller. SCM and DAC0832 can divide the frequency of specific procedures)

光电传感器控制源码，非常实用，大家下载下来学习一下(Photoelectric Sensor Control Source Code)

基于单片机计算器,可计算加减乘除，但是不能计算小数(Based on single chip calculator)