Javascr ipt for calculation PWM parameters related to frecuency, duty cycle and others.

数字显示PWM信号的频率、占空比等，占空比精度5 ，频率精度1 。 2．发挥部分-Figures show that the frequency of PWM signal, duty cycle and so on, accuracy of 5 duty cycle, frequency accuracy of 1 . 2. Play a part