Matrix-keyboard-lock

BH1750FVI光照度传感器在12864液晶上的显示(BH1750FVI light sensor on the 12864 LCD display)

很久以前写的一个数码管取模软件，可做单片机来发辅助…(a MCU tool ,i ve written it when i was a freshman)

说明：  图像处理程序,单片机嵌入式,FFT算法(Image processing procedures, single-chip embedded, FFT algorithm)

好的声文同步程序，值得学习，适合于初学者，给大家共同分享(Good sound text synchronization process, it is worth learning, suitable for beginners, for everyone to share)

毕业设计时做DC600V逆变器测试系统，采用工控机为主控制器，PCL-818数据采集卡， VC++作编程工具，对25T、25k型客车使用的逆变器进行性能测试。(Graduation time to do DC600V inverter test system, IPC-based controller, PCL-818 data acquisition card, VC++ as a programming tool, 25T, 25k bus-type inverter used for performance testing.)

$regfile = M8DEF.dat internal crystal 8000000 Config Lcdpin = Pin , Db4 = Portc.1 , Db5 = Portc.2 , Db6 = Portc.3 , Db7 = _ Portc.4 , E = Portd.2 , Rs = Portd.3 Config Lcd = 16 * 2 Config Timer1 = Counter , Edge = Rising Ddrb.1 = 0 : Portb.1 = 1 PULL UP RESISTOR ACTIVATED Config Timer0 = Timer , Prescale = 1024 Enable Counter1 Enable Interrupts Enable Timer0 Enable Timer1 On Ovf1 Pulsecount On Ovf0 Ovf0occures Dim A As Long , I As Long , B As Byte B = 0 Cls Start Timer0 Do Loop End end program Ovf0occures: Incr I If I > 30 Then Stop Timer0 Cls : Home A = B * 65536 A = A + Counter1 Lcd FREQ IS : A HZ B = 0 I = 0 : Counter1 = 0 Start Timer0 End If Return Pulsecount: Incr B Counter1 = 0 Return

自己实现的LSD直线检测算法，比论文提供的LSD检测算法少了很多复杂操(LSD own line detection algorithm implemented, LSD detection algorithm than the paper offered a lot less complicated operation)

STM32 外部中断程序，用于学习用中断来控制按键(STM32 External Interrupt program)

基于STM32F103VET6的无刷直流电机控制程序和资料还有原理图(Brushless DC motor control procedures)

51环境的超声波程序，keil直接完美运行，需要复制到程序中(51 microcontroller ultrasound procedure can be run directly keil)