步进电机驱动程序.... 可以通过改变定时来控制电机速度

IIC总线的c语言程序，介绍 IIC总线的时序和操作方法-IIC Bus c Language Program, introduced IIC bus timing and method of operation

C8051F020串口通信例程-C8051F020 serial communication routines

点阵LED显示0-9程序（c语言）,此程序为8*8LED点阵的简单程序-Dot-matrix LED display 0-9 program (c language)

本人设计的用802051实现的键盘程序的识别代码。系统采用定时查询，防抖。如果监测到你一个代码，系统将键盘码输出。然后给我你个中断，用于提示中心机，读取键码。支持长按。-I designed keyboard with 802,051 procedures to achieve the identification code. System uses a regular query, Anti-Shake. If the monitoring to you a code, the system will output the keyboard code. And then give me interrupt you for the prompt Center machine, read the key code. Support the long press.

用C51开发的单片机多机通讯程序，其中包括双口RAM的读写程序。 这个程序调试通过，应用在我开发的系统中，效果很好。-C51 Microcontroller with the development of multi-machine communication procedures, including dual-port RAM reading and writing process. Debugging through this process, the application in my development system, good results.

RS232串口程序，波特率可自行设置，如9600，19200，接收和发送程序-RS232 serial procedures, its own baud rate settings, such as 9600,19200, receive and send program

nRF9E5的性能测试程序,该程序控制开发板的一个灯的亮与灭.-nRF9E5 the performance test procedures, the control of a development board with the bright lights out.

很完整的门禁系统原码，希望能帮助大家更好的学习学习一下

ATmega单片机开发CAN总线程序，有用！-ATmega MCU development of CAN-bus program, useful!

电压显示 proteus仿真,keil编写程序-Proteus simulation voltage display, keil programming