pxt-calliope/libs/core/music.cpp

#include "pxt.h"

namespace music {
    /**
     * Plays a tone through ``speaker`` for the given duration.
     * @param frequency pitch of the tone to play in Hertz (Hz)
     * @param ms tone duration in milliseconds (ms)
     */
    //% help=music/play-tone weight=90
    //% blockId=device_play_note block="play|tone %note=device_note|for %duration=device_beat" icon="\uf025" blockGap=8
    //% parts="speaker" async
    void playTone(int frequency, int ms) {
        if(frequency > 0) uBit.soundmotor.soundOn(frequency);
        else uBit.soundmotor.soundOff();
        if(ms > 0) {
            uBit.sleep(ms);
            uBit.soundmotor.soundOff();
        }

    }
}