Hi All, I'm curring getting an error message while I'm tryin to edit some code. I'm trying to input a pause/resume piece into the code, so that when the electrode is touched - if playing it wil be paused and the consequently be able to be resumed by touching it again.
the main error I'm getting is
could not convert 'MP3player.SFEMP3Shield::pauseMusic()' from 'void' to 'bool'
if (MP3player.pauseMusic()){'
I'm learning as I go along so apologies, if it is any glaringly obvious fix. Any help will be greatly appreciated!
Link to library using is here: [
See the code below!
// compiler error handling
#include "Compiler_Errors.h"
// touch includes
#include <MPR121.h>
#include <Wire.h>
#define MPR121_ADDR 0x5C
#define MPR121_INT 4
// mp3 includes
#include <SPI.h>
#include <SdFat.h>
#include <FreeStack.h>
#include <SFEMP3Shield.h>
// mp3 variables
SFEMP3Shield MP3player;
byte result;
int lastPlayed = 0;
// mp3 behaviour defines
#define REPLAY_MODE FALSE // By default, touching an electrode repeatedly will
// play the track again from the start each time.
//
// If you set this to FALSE, repeatedly touching an
// electrode will stop the track if it is already
// playing, or play it from the start if it is not.
// touch behaviour definitions
#define firstPin 0
#define lastPin 11
// sd card instantiation
SdFat sd;
void setup(){
Serial.begin(57600);
pinMode(LED_BUILTIN, OUTPUT);
//while (!Serial) ; {} //uncomment when using the serial monitor
Serial.println("Bare Conductive Touch MP3 player");
if(!sd.begin(SD_SEL, SPI_HALF_SPEED)) sd.initErrorHalt();
if(!MPR121.begin(MPR121_ADDR)) Serial.println("error setting up MPR121");
MPR121.setInterruptPin(MPR121_INT);
MPR121.setTouchThreshold(10);
MPR121.setReleaseThreshold(5);
result = MP3player.begin();
MP3player.setVolume(10,10);
if(result != 0) {
Serial.print("Error code: ");
Serial.print(result);
Serial.println(" when trying to start MP3 player");
}
}
void loop(){
readTouchInputs();
}
void readTouchInputs(){
if(MPR121.touchStatusChanged()){
MPR121.updateTouchData();
// only make an action if we have one or fewer pins touched
// ignore multiple touches
if(MPR121.getNumTouches()<=1){
for (int i=0; i < 12; i++){ // Check which electrodes were pressed
if(MPR121.isNewTouch(i)){
//pin i was just touched
Serial.print("pin ");
Serial.print(i);
Serial.println(" was just touched");
digitalWrite(LED_BUILTIN, HIGH);
if(i<=lastPin && i>=firstPin){
if(MP3player.isPlaying()){
if(lastPlayed==i && !REPLAY_MODE){
// if we're already playing the requested track, stop it
// (but only if we're not in REPLAY_MODE)
MP3player.pauseMusic();
Serial.print("pausing track ");
Serial.println(i-firstPin);
} else {
// if the track is already paused, resume the paused track
if (MP3player.pauseMusic()){
if (lastPlayed == i){
MP3player.resumeMusic();
Serial.print("resuming track ");
Serial.println(i-firstPin);
} else {
// if we're already playing a different track (or we're in
// REPLAY_MODE), stop and play the newly requested one
MP3player.stopTrack();
MP3player.playTrack(i-firstPin);
Serial.print("playing track ");
Serial.println(i-firstPin);
// don't forget to update lastPlayed - without it we don't
// have a history
lastPlayed = i;
}
} else {
// if we're playing nothing, play the requested track
// and update lastplayed
MP3player.playTrack(i-firstPin);
Serial.print("playing track ");
Serial.println(i-firstPin);
lastPlayed = i;
}
}
} else {
if(MPR121.isNewRelease(i)){
Serial.print("pin ");
Serial.print(i);
Serial.println(" is no longer being touched");
digitalWrite(LED_BUILTIN, LOW);
}
}
}
}
}
}
](GitHub - mpflaga/Sparkfun-MP3-Player-Shield-Arduino-Library: REPLACED by)