Sarah Marsh / Mbed OS app-shield-speaker

Example program to do a frequency sweep on the speaker

Fork of app-shield-speaker by Chris Styles

main.cpp

Committer:
chris
Date:
2012-10-16
Revision:
1:0a08d26b011a
Parent:
0:f86c572491c3
Child:
2:cfd337edff08

File content as of revision 1:0a08d26b011a:

#include "mbed.h"

DigitalIn fire(p14);
PwmOut spkr(p26);

int main()
{
    for (float i=2000.0; i<10000.0; i+=100) {
        spkr.period(1.0/i);
        spkr=0.5;
        wait(0.1);
    }
    spkr=0.0;
    while(!fire) {}
}