Marco Perciavalle / Mbed OS Morse

Encoding messsages, continuously written on serial terminal, in Morse code. Resulting code is played by a buzzer. Please, use local echo on terminal for more impressive experience. To verify coded messages, there are some app for smartphone.

Dependencies:   FIFO

Fork of Morse by Romain Berrada

Speaker.h

Committer:
marcoperciavalle
Date:
2018-02-03
Revision:
2:39d67345f7b3

File content as of revision 2:39d67345f7b3:

#include "mbed.h"
// new class to play a note on Speaker based on PwmOut class
class Speaker
{
public:
    Speaker(PinName pin) : _pin(pin) {
        // _pin(pin) means pass pin to the Speaker Constructor
    }

    // class method to play a note based on PwmOut class
    void PlayNote(float frequency, float duration, float volume) {
        _pin.period(1.0/frequency); // higher number = more base
        _pin = volume/2.0;          // higher number = more weird treble
        wait(duration);
        _pin = 0.0;
    }

private:
    PwmOut _pin;
};