File content as of revision 0:cad1a4329bd8:

//Mark Schwarzer Assignment 6 Part 2
#include "mbed.h"

PwmOut servo(p19);
AnalogIn Pcell(p20);
DigitalIn switch_input(p17);
Serial pc(USBTX,USBRX);
float V; //voltage
float angle;

//Run through a range of pulse widths, report to serial output:
void servo_test(float period, float minPulse, float maxPulse, float pulseStep)
{
    float currentPulse;
    servo.period(period); //set the PWM period
 
    //Vary the pulse width from minimum to maximum in steps.
    pc.printf("Commencing Servo Test\r\n");
    for (currentPulse=minPulse; currentPulse<maxPulse; currentPulse=currentPulse+pulseStep) {
        servo.pulsewidth(currentPulse/1000000.000); //convert uSec to sec.
        pc.printf("Current pulse width is %f\r\n",currentPulse);
        wait(0.5);
    }
    pc.printf("Servo Test Finished\r\n");
}
 
 
//Sends correct pulse width to servo to achieve desired angle:
void servo_set_angle(float angle)
{
    float pulseCoeff = 10.0;
    float pulseOffset = 400;
    float pulseWidth;
 
    //Check to make sure commanded angle is within min-max bounds:
    if (angle < 0) {
        angle = 0;
    } else if (angle > 180) {
        angle = 180.0;
    }
 
    //Calculate pulsewidth for the desired angle and issue command:
    pulseWidth = pulseCoeff * angle + pulseOffset;
    servo.pulsewidth(pulseWidth/1000000.000);
}
 
int main()
{
V=(3.3);
wait(3);
servo.period(0.01);
float voltageLight;

while(1)  {
    voltageLight= Pcell.read()*V;
    angle=(180*V);
    pc.printf("Servo Angle: %5.2f\r\n",angle);
    pc.printf("Voltage;%f",voltageLight);
    wait(1); }}