File content as of revision 4:ef9385dba098:

#include "mbed.h"

 
PwmOut PWM0(p21); //PWM out
 AnalogIn   ain0(p16); //Analog input A0
 AnalogIn   ain1(p20); //Analog input A1
 DigitalOut ledasim(LED1);
 DigitalOut ledasim2(LED2);
Serial pc(USBTX, USBRX); // tx, rx
float test=0;
int main() {
    int ain11 = 0;
    //PWM0.period(0.0f);      // 0second period
    //PWM0.write(0.0f);
    test=ain1;
    pc.printf("%f\n\r",test);
    wait(5);
    while(ain1>0.18){
        test=ain1;
    pc.printf("%f\n\r",test);
        }
    while(1){
       if(ain1<0.8){ 
    // specify period first
    PWM0.period(0.0025f);      // 0.0025 second period
    PWM0.write(0.8f);      // 50% duty cycle, relative to period
    //led = 0.5f;          // shorthand for led.write()
    //led.pulsewidth(2);   // alternative to led.write, set duty cycle time in seconds
    //printf("ll");
    ledasim=!ledasim;
    //printf("%f\n\r",ain0);
    //printf(" %f\n\r", ain0.read());
}
    wait(5);
    while(1){
    wait(0.25);
    test=ain0;
    pc.printf("%f\n\r",test);
    if(ain0 > 0.289 || ain0 < 0.268) {
    PWM0.period(0.0f);      // 0second period
    PWM0.write(0.0f);
    ain11= 1;
      } else if(ain11 == 0){
    PWM0.period(0.0025f);      // 0second period
    PWM0.write(0.8f);
    }
      }
    
  }
    }