上传的是一个用AVR的高速单片机M16设计的一个PWM波。可以用来控制电机，实现调速。对于学习AVR的单片机的朋友很有帮组，-Upload a high-speed AVR microcontroller with a PWM wave M16 design. Can be used to control the motor to achieve speed. AVR microcontroller for friends to learn useful to help groups