Konrad Zakrzewski / Mbed 2 deprecated ME21001_Lab02_Exercise_06

buzzer on/off

Dependencies:   mbed

main.cpp

Committer:
kzakrzewski
Date:
2018-10-03
Revision:
0:c418d4724781

File content as of revision 0:c418d4724781:

/**************************************************************
/ Simple program to show basic program structure
/
/ The program play sound on/off at a rate of 500Hz in 1ms intervals
/
/**************************************************************/

#include "mbed.h"
                                         // speaker sound effect demo using PWM hardware output
PwmOut speaker(p21);
 
int main()
{
    
    while (1) {
                                        // generate a 500Hz tone using PWM hardware output
    speaker.period(1.0/500.0);          // 500hz period
    speaker =0.5;                       //50% duty cycle - max volume
    wait(0.001);
    speaker=0.0;                        // turn off audio
    wait(0.001);
    }
 }