SPI_2543_uart

大华DVR的SDK开发包,包括源码和开发文档.(Dahua DVR SDK development kits, including source code and documentation development.)

温湿度报警系统，基于VB的小程序，和DHT11相关。(Temperature and humidity alarm system, VB-based applets, and DHT11 related.)

基于STM32F10X的气压传感器（bmp180）程序，串口输出，内含bmp180手册。(Based STM32F10X pressure sensor (bmp180) program, serial output, containing bmp180 manual.)

虚拟串口，在Proteus中可用实际串口与其通信(Virtual serial port, available at Proteus its actual serial communication)

增强型实验板配套例程库DS18B20-液晶1602显示温度和控制(Enhanced experimental board supporting routine library DS18B20-LCD 1602 display temperature and control)

简单的lcd1602显示代码，说明通俗易懂(Simple lcd1602 display code)

串口发送数据，字符，12864接受并显示字符(Serial port to send data, the character, to accept and display the character 12864)

stm32输出四路pwm，能完成占空比可调，频率可变化的pwm(Stm32 four road PWM output, can finish the duty ratio is adjustable, can change the PWM frequency)

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.)

面向51单片机的复杂流水灯实验的c语言程序(The complexity of water for 51 single-chip light experiment c language program)