电子密码锁EEPROM-IIC 可修改密码

单片机实验程序，使用的是汇编编程，可以实现用位运算，8255输入输出用PA口输入开关状态，PB口点亮相应的灯或者PC口接开关，PB口接LED(Microcontroller experimental procedure, using a compilation of programming can be achieved with a bit operation, the state of the input switch 8255 input-output port with PA, PB mouth lamp or light the corresponding PC port tap, PB port access LED)

COLLISION ARM CORTEX PROGRAM TEXT CONTAINS THE PROGRAM CODE IN TEXT FORM

带接收和发送协议处理的串口调试工具，可只接收并显示自定义关键字的串口数据，非常好用，带这种功能的可用的此类软件不多，值得收藏。(ComFilter,can receive and display your expired information from COM.)

对电压、电流的有效值进行计算函数，计算有效值的周期可进行设置。(RMS calculation function)

AVR单片机的串口传输，实现两个单片机通过串口传输简单信息(AVR microcontroller' s serial port transmission, to achieve two simple microcontroller through the serial port information)

硬件资源: 1,DS0(连接在PA8)，DS1(连接在PD2上) 2,串口1(波特率:115200,PA9/PA10连接在板载USB转串口芯片CH340上面) 3,ALIENTEK 2.8/3.5/4.3寸LCD模块(仅支持MCU屏) 4,按键KEY0(PC5)/KEY1(PA15)/KEY_UP(PA0,也称之为WK_UP) 实验现象: 通过按键KEY_UP可以控制定时器AutoReloadTimer_Handle的开启，这个是 周期定时器，一旦开启就会不断的运行，直到按下KEY1将其关闭。按下KEY0 可以打开定时器OneShotTimer_Handle，这是个单次定时器，只会运行一次， 运行周期到了以后就会停止运行，除非按下按键KEY0将其再次开启。(Hardware resources: 1, DS0 (connected to PA8), DS1 (connected to PD2) 2. Serial port 1 (baud rate: 115200, PA9/PA10 connected on board USB to serial chip CH340) 3, ALIENTEK 2.8/3.5/4.3 inch LCD module (only supporting MCU screen) 4. Keyboard KEY0 (PC5)/KEY1 (PA15)/KEY_UP (PA0, also known as WK_UP) Experimental phenomena: The timer AutoReloadTimer_Handle can be turned on by keying KEY_UP. This is The periodic timer will run continuously once it is turned on until KEY1 is pressed to turn it off. Press KEY0 You can turn on the timer OneShotTimer_Handle, which is a single timer and only runs once. The run cycle will stop after that unless KEY0 is pressed to turn it on again.)

PCB设计工具，PROTEL 转 POWERPCB工具，方便的PCB转换工具，很实用！(PCB design tools, PROTEL to POWERPCB tools, PCB convenient conversion tool, very useful!)

说明：  STM32F3与F4系列Cortex M4内核编程手册(STM32F3 and F4 Series Cortex M4 Kernel Programming Manual)

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)

说明：  FDC2214驱动基于stm32f103ve(Fdc2214 driver FDC2214 driver code based on stm32f103ve)