HART-Protocol

宽频放大器,有以下功能: 预置增益,增益加/减,显示输出电压有效值,自动增益 显示有效值. 增益输入及加减 自动增益没有实现(Wideband amplifier has the following functions: Preset gain, gain plus/minus, the display output voltage RMS, automatic gain display rms. AGC gain input and subtraction is not implemented)

运用单片机实现烟雾、煤气报警和短路自检，主要用到ADC0809，AT89S51等。本项目最终做成实物，并能良好实现功能。有protel原理图，PCB布线图，完整的论文中有详细程序介绍。(Application of single chip microcomputer gas alarm and smoke, short circuit self-checking, mainly used in ADC0809, AT89S51 etc..This project eventually made real, and can well realize the function.Protel PCB schematic diagram, wiring diagram, the complete paper.)

利用ULN2003A进行驱动，产生PWM波，里边有照片，可供参考，通过本例程了解PWM 的基本原理和使用 (#include <reg52.h> unsigned char timer1 sbit PWM=P1^2 void system_Ini() { TMOD|= 0x11 //PWM TH1 = 0xfe //11.0592 TL1 = 0x33 TR1 = 1 IE =0x8A } main() { system_Ini() while(1) { if(timer1>100) timer1=0 if(timer1<30) PWM=0 else PWM=1 } )

此程序为4*4矩阵键盘，键盘自身不带电源电阻，八个接线，在程序中进行需进行软件拉高拉低以便按键扫描。 应用单片机为MSP430F5529。(4* 4 matrix keyboard without power resistors MSP430F5529)

C8051f340 8位pwm波形输出 占空比可调节(C8051f340 8bit output )

数码管的显示程序，数码管循环显示900-999~(Digital loop display 900-999 ~)

基于STM32的直流无刷电机控制程序，带霍尔传感器(Brushless DC motor control procedures)

这是 关于STM32单片机 PWM电机调速的 例程文件(this is about stm32 pwm )

2.4寸 TFT液晶屏在C51单片机上的刷屏测试程序(2.4-inch TFT LCD screen on a single chip in the C51 test procedure Shuabing)

LPC2378 Schematic,with hardware