05-03 PWMFrequency

From Manuals

This example program uses an analog input to control the period of a PWM.

/*Program Example 5.3: Uses analog input to control PWM period
                                                                     */
#include "mbed.h"
PwmOut pwm(PWM1);
AnalogIn Ain(A0);

int main() {
    while(1){
      pwm.period(Ain/10+0.001);            // set PWM period
      pwm=0.5;                             // set duty cycle
      wait(0.5);
    }
}

Schematic for example 05-03