Ciaran O'Malley / Mbed 2 deprecated Speaker

Lab exercise 2.4

Dependencies:   mbed C12832

main.cpp

Committer:
ciaranom
Date:
2020-07-31
Revision:
1:54ad620bcc3d
Parent:
0:d3690ebbbcd6

File content as of revision 1:54ad620bcc3d:

#include "mbed.h"
DigitalIn fire(p14);
PwmOut spkr(p26);
AnalogIn pot1(p19);

int main()
{
 //set loop var
 float starti = 500.0; //starting value
  float endi = 3000.0; //final value (actually 1 step beyond final value)
   float stepi = 50.0; //step size
 
 
 
 while (1) { //while loop
 for (float i=starti; i<endi; i+=stepi) { //using previously set parameters
 spkr.period(1.0/i); 
 spkr=0.5;
 wait(0.1);
 }
 spkr=0.0;
 
 
 while(pot1.read() < 0.5) { //While potentiometer is less than 50% of max, plays above sound loop except starting at new patameter (i/1500) instead of initially set parameter (i/500)
     starti = 1500.0;
     } // this uses the pot to control the program
 }
}