ESP32Tone.cpp

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/*
 * ESP32Tone.cpp
 *
 *  Created on: Sep 23, 2018
 *      Author: hephaestus
 */


#include "ESP32Tone.h"

void tone(int APin,unsigned int frequency){
    ESP32PWM* chan = pwmFactory(APin);
    if (chan == NULL) {
        chan = new ESP32PWM();
    }
    if(!chan->attached()){
        chan->attachPin(APin,frequency, 10); // This adds the PWM instance to the factory list
        //Serial.println("Attaching tone : "+String(APin)+" on PWM "+String(chan->getChannel()));
    }
    chan->writeTone(frequency);// update the time base of the PWM
}

void tone(int pin, unsigned int frequency, unsigned long duration){
    tone(pin,frequency);
    delay(duration);
    noTone(pin);
}

void noTone(int pin){
    ESP32PWM* chan = pwmFactory(pin);
    if (chan != NULL) {
        if(chan->attached())
        {
            chan->detachPin(pin);
            delete chan;
        }
    }
}