virtual-serial-port

说明：  单片机实现贪吃蛇游戏，本人使用的是51单片机，显示器为16*16点整控制，此类方法适合初学者玩耍~~(Snake MCU)

用电脑串口控制单片机流水灯状态,用电脑串口控制单片机流水灯状态(Serial control with a computer chip light water status)

步进电机是将电脉冲信号转变为角位移或线位移的开环控制电机，是现代数字程序控制系统中的主要执行元件，应用极为广泛。。在非超载的情况下，电机的转速、停止的位置只取决于脉冲信号的频率和脉冲数，而不受负载变化的影响，当步进驱动器接收到一个脉冲信号，它就驱动步进电机按设定的方向转动一个固定的角度，称为“步距角”，它的旋转是以固定的角度一步一步运行的。可以通过控制脉冲个数来控制角位移量，从而达到准确定位的目的；同时可以通过控制脉冲频率来控制电机转动的速度和加速度，从而达到调速的目的。(Stepper motor is an open loop control motor which transforms electrical pulse signal into angular displacement or linear displacement. It is the main executive element in modern digital control system, and is widely applied. In the case of non overloaded, the motor speed and stop position depends only on the pulse frequency and pulse number, regardless of load changes, when the stepper driver receives a pulse signal, it drives stepper motor to set the direction of rotation of a fixed angle, called "step", it is the rotation of the fixed point of the operation step by step. We can control the angular displacement by controlling the number of pulses, so as to achieve the goal of accurate positioning. At the same time, we can control the speed and acceleration of motor rotation by controlling the pulse frequency, so as to achieve the purpose of speed regulation.)

AD转换芯片源程序。串行模式通信。。带电路(AD conversion chip source. Serial mode of communication. . Band circuit)

国外PLC设计的原理图和PCB(Principle foreign PLC design and PCB)

SQL Server 2005 Service Broker (SSB) is an asynchronous messaging technology built into SQL Server. With SSB, you essentially get the power of messaging technologies like Microsoft Message Queue (MSMQ) combined with the relational database capabilities of SQL Server, all controlled with Transact SQL statements(SQL Server 2005 Service Broker (SSB) is an a synchronous messaging technology built into S QL Server. With SSB. you essentially get the power of messaging tech nologies like Microsoft Message Queue (MSMQ) c ombined with the relational database capabili ties of SQL Server, all controlled with Transact SQL statements)

CRC check 介绍CRC的基本原理以及实现方式(CRC check)

stm32芯片--用GPIO口模拟I2C驱动MPU6050陀螺仪(Stm32 chip- using GPIO port simulation I2C driver MPU6050 gyroscope)

ACR9000多轴运动控制器上位机控制程序示例（MFC） (ACR9000 multi-axis motion controller PC control program example (MFC))

modbus通信程序,可用组态软件的驱动程序开发(modbus communication program, available configuration software driver development)