XMAS time...
This sketch randomly plays all the songs in a folder. You can control the volume, play/pause/stop/next, and ff/rew using serial input (from the IDE).
Throw a bunch of your favorite holiday songs in a folder named "XMAS" on your SD card, stick it in the rMP3, and run the sketch.
I haven't got around to building a tree light sequencer to run at the same time as the songs are playing. Maybe Grumpy_Mike will lend me his Tree-Sink. ;D
Happy Holidays everyone!
b
#include <RogueSD.h>
#include <RogueMP3.h>
#include <NewSoftSerial.h>
NewSoftSerial rmp3_serial(6, 7);
RogueMP3 rmp3(rmp3_serial);
RogueSD filecommands(rmp3_serial);
int numberOfSongs;
int lastSong;
char path[96];
const char *directory = "/XMAS";
void setup()
{
Serial.begin(9600);
Serial.println("Merry Xmas!");
rmp3_serial.begin(9600);
rmp3.sync();
rmp3.stop();
filecommands.sync();
// mix up our random number generator
randomSeed(analogRead(0));
// get the number of songs available
strcpy(path, directory);
strcat(path, "/");
strcat(path, "*.mp3"); // we have to do this because the IDE thinks that "/*" needs to be terminated everywhere
numberOfSongs = filecommands.filecount(path);
lastSong = -1;
}
void playNextSong()
{
uint8_t i;
char filename[80];
char path[96];
int nextSong = 0;
if (numberOfSongs > 0)
{
// Select our next song randomly
if (numberOfSongs > 2)
{
do
nextSong = random(numberOfSongs);
while (nextSong == lastSong);
}
else if (numberOfSongs == 2)
{
// we only have two songs
if (lastSong == 0)
nextSong = 1;
else
nextSong = 0;
}
// now, get our file name from file list
filecommands.opendir(directory);
for (i = 0; i <= nextSong; i++)
{
filecommands.readdir(filename, "*.mp3");
}
strcpy(path, directory);
strcat(path, "/");
strcat(path, filename);
rmp3.playfile(path);
Serial.print("Playing: ");
Serial.println(path);
lastSong = nextSong;
}
else
{
Serial.println("No files to play.");
}
}
void loop()
{
char c;
uint8_t i;
int16_t newtime;
playbackinfo playinfo;
char status = 'S';
uint8_t playing = 1;
uint8_t volume = 20;
uint8_t boostOn = false;
volume = rmp3.getvolume(); // this only gets the left volume
playNextSong();
while(1)
{
while(!Serial.available())
{
// we should do fancy stuff like flash lights on our Xmas tree here!
// got lots of time!
delay(200);
status = rmp3.getplaybackstatus();
playinfo = rmp3.getplaybackinfo();
if (status == 'S' && playing)
playNextSong();
}
// OOH!! got a character!
c = Serial.read();
switch(c)
{
case 'p':
// pause
if(status == 'D')
{
// fade in
rmp3.playpause();
rmp3.fade(volume, 400);
}
else if(status == 'P')
{
// fade out
rmp3.fade(100, 400);
rmp3.playpause();
}
else
{
// start playing
playNextSong();
playing = 1;
}
break;
case 's':
rmp3.stop();
playing = 0;
break;
case 'n':
playNextSong();
playing = 1;
break;
case 'e':
if(boostOn)
{
rmp3.setboost(0);
boostOn = false;
}
else
{
rmp3.setboost(8, 6, 7, 3);
boostOn = true;
}
break;
case 'a':
// jump back 5 seconds
newtime = playinfo.position - 5;
if (newtime < 0) newtime = 0;
rmp3.jump(newtime);
break;
case 'd':
// jump forward 5 seconds
rmp3.jump(playinfo.position + 5);
break;
case 'k':
if(volume < 254) volume++;
if(status != 'D') rmp3.setvolume(volume);
break;
case 'i':
if(volume > 0) volume--;
if(status != 'D') rmp3.setvolume(volume);
break;
}
}
}