f020单片机，输出占空比可通过按键调整的PWM波形，-f020 single chip, the output duty cycle can be adjusted via buttons PWM waveform

STC12单片机自带PWM控制电机 PCA定时 LCD1602显示的码盘测速 小车程序完整版 以调试通过-STC12 MCU comes with PWM control motor PCA Timer LCD1602 display the code disk full version of speed car to debug through the program

ST单片机的各种PWM使用与事例.可以作为模块使用.-Single every kind of PWM usage of a machine in ST and case.Can be used as the mold an usage.