通过软件的方法用AVR单片来实现10路PWM,主要用途是实现LED的渐亮和渐灭.可以解决一般单片机没有多个PWM口的问题.-The method used by the software to achieve 10-way AVR chip PWM, the main purpose is to achieve an LED light and gradually fade out. You can not have more than one microcontroller to solve