TVZ2020 / buzzer

/

Dependents:   Semafor-Jukicic

buzzer.cpp

Committer:
djukicic
Date:
2021-02-21
Revision:
0:f563386d7c59

File content as of revision 0:f563386d7c59:

#include "buzzer.h"
#include "mbed.h"
 
using namespace mbed;
 
Beep::Beep(PinName pin) : _pwm(pin)
{
    _pwm.write(0.0);
}
 
void Beep::nobeep()
{
    _pwm.write(0.0);
}
 
/** Beep with given frequency and duration.
 *
 * @param frequency - the frequency of the tone in Hz
 * @param time - the duration of the tone in seconds
 */
void Beep::beep(float freq, float time)
{
 
    _pwm.period(1.0/freq);
    _pwm.write(0.5);
    toff.attach(this,&Beep::nobeep, time);
}