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This example uses an analog input to control the duty cycle of a PWM in a fixed period.

The signals used for this example are listed below:
{| border="1" cellpadding="5" cellspacing="2" align="center" style="text-align: center;"
|+ align="bottom"|'''Signals Used and Connector Locations for Example 05-01'''
|'''Signal'''
|'''LPC4330 PIN NAME'''
|'''BAM210E'''
|'''BAM210'''
|'''BAM200E'''
|'''BAM200'''
|'''Used for'''
|-
|A0
|P7_4
|J8-1
|J8-1
|S4-3
|S4-3
|Potentiometer 
|- 
|PWM1
|P1_7
|J9-3
|J9-3
|S2-3
|S2-3
|Oscilloscope
|- 
|}

The following schematic can be used to build the circuit with a BAM210E or BAM210.
[[Image:BAM210_05_02_SCH.png|center|alt=BAM210|frame|<div align="center">'''Schematic for example 05-02''']]

<div style="text-align: left;">

 /*Program Example 5.2: Uses analog input to control PWM duty cycle, fixed period
                                                     */
 #include "mbed.h"
 PwmOut pwm(PWM1);
 AnalogIn Ain(A0);          //defines analog input on A0
 
 int main() {
   while(1){
     pwm.period(0.010);  // set PWM period to 10 ms
     pwm=Ain;            //Analog in value becomes PWM duty, both are type float
     wait(0.1);
   }
 }
PWM1 was captured on the oscilloscope in the image below.
[[Image:BAM210_05_02.png|center|]]

The following image shows the built circuit on a BAM210E.
[[Image:BAM210_PWMPulse.jpeg|center|]]