1602

利用定时器产生PWM，使LED灯由亮到灭，由灭到亮逐步变化( Use timer produce PWM, make the light to destroy LED lamp, the gradual change to light out )

基于51单片机的译码器实验，常见问题： 1. 按下按键无效果 确保连线正确 换根杜邦线试试 将单片机拆下来重新安装下，重启开发板(Decoder Experiment Based on 51 Single Chip Microcomputer, Common Problems: 1. Pressing the key has no effect Make sure the connection is correct Try changing the dobang line Remove the microcontroller and reinstall it. Restart the development board.)

protues的教程，初学者的必备，可以学习很多东西，对自己收益很大(study protues)

8、可变频率方波发生器 用单片机的定时器设计一个频率可变的方波发生器，输出频率范围1Hz~500Hz，频率输出精度为0.5Hz。要求可以实时显示当前输出的频率，可以用键盘来设定方波发生器的输出频率，具有直接设定或逐渐调节的功能，调节分辨率和显示分辨率均为0.5 Hz，其它电路自由发挥。(8, variable frequency square wave generator with single-chip microcomputer timer design a variable frequency square wave generator, the output 1 Hz ~ 500 Hz frequency range, frequency output precision is 0.5 Hz. Requirements can real-time display current output frequency, can use the keyboard to set the output frequency of square wave generator, has the function of directly set or adjust gradually adjust the resolution and display resolution of 0.5 Hz, free play other circuits.)

基于stm32 的语音识别程序，通过识别关键词回复相应的语句(STM32 based speech recognition program, by identifying key words to reply to the corresponding statement)

STC15W408AS_BLDC无刷电机驱动程序(STC15W408AS_BLDC DRIVER)

说明：  stm32f103zet6 使用freertos，在IAR平台下开发，队列例程(stm32f103zet6 freertos)

基于51单片机的交通三色灯的设计与操作控制(Design and control of traffic light based on 51 single chip microcomputer)

说明：  基于stm32的手势识别代码，可识别数字和石头剪刀布，内含蓝牙、语音等多种模块(Gesture recognition code based on STM32 can recognize numbers and stone scissors, including bluetooth, voice and other modules)

51单片机上的实时操作系统RTX51程序5合一，含有信号量的使用，交通灯、电子钟等例子，并用含proteus仿真文件，非常适合对51单片机感兴趣同时想进入RTOS领域的同学(51 single-chip real-time operating system RTX51 program one that contains the example of semaphore use, traffic lights, electronic clock, and including proteus simulation file, very interested in the students want to get into the RTOS field for 51 single-chip)