Chris Styles / Mbed 2 deprecated app-shield-speaker

Example program to do a frequency sweep on the speaker

Dependencies:   mbed

Fork of app-board-Speaker by Chris Styles

main.cpp@2:cfd337edff08, 2012-10-25 (annotated)

Committer:
chris
Date:
Thu Oct 25 12:25:00 2012 +0000
Revision:
2:cfd337edff08
Parent:
1:0a08d26b011a
Child:
3:3bb3e6051175
Added an outer loop so that the sweep can be replayed

Who changed what in which revision?

UserRevisionLine numberNew contents of line
chris 0:f86c572491c3 1 #include "mbed.h"
chris 0:f86c572491c3 2
chris 1:0a08d26b011a 3 DigitalIn fire(p14);
chris 1:0a08d26b011a 4 PwmOut spkr(p26);
chris 0:f86c572491c3 5
chris 0:f86c572491c3 6 int main()
chris 0:f86c572491c3 7 {
chris 2:cfd337edff08 8 while (1) {
chris 2:cfd337edff08 9 for (float i=2000.0; i<10000.0; i+=100) {
chris 2:cfd337edff08 10 spkr.period(1.0/i);
chris 2:cfd337edff08 11 spkr=0.5;
chris 2:cfd337edff08 12 wait(0.1);
chris 2:cfd337edff08 13 }
chris 2:cfd337edff08 14 spkr=0.0;
chris 2:cfd337edff08 15 while(!fire) {}
chris 0:f86c572491c3 16 }
chris 0:f86c572491c3 17 }