初始化提交
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王立帮
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/******************************************************************************
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Basic Commands examples for the SerialMP3Player YX5300 chip.
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Copy the files of "SDcard_example" to an empty SD card
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Connect the Serial MP3 Player to the Arduino board
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GND → GND
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VCC → 5V
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TX → pin 11
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RX → pin 10
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After compile and upload the code,
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you can test some basic commands by sending the letters
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? - Display Menu options.
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P01 - Play 01 file
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F01 - Play 01 folder
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S01 - Play 01 file in loop
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p - play
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a - pause
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s - stop
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> - Next
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< - Previous
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...
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Some commands like 'P' must be followed by two digits.
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This example code is in the public domain.
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https://github.com/salvadorrueda/ArduinoSerialMP3Player
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by Salvador Rueda
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*******************************************************************************/
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#include "RL_YX5300_Serial.h"
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#define TX 11
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#define RX 10
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YX5300_Serial mp3(RX,TX);
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void setup() {
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mp3.showDebug(1); // print what we are sending to the mp3 board.
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Serial.begin(9600); // start serial interface
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mp3.begin(9600); // start mp3-communication
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delay(500); // wait for init
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mp3.sendCommand(CMD_SEL_DEV, 0, 2); //select sd-card
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delay(500); // wait for init
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menu('?',0); // print the menu options.
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}
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char c; // char from Serial
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char cmd=' ';
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char cmd1=' ';
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// the loop function runs over and over again forever
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void loop() {
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if (Serial.available()){
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c = Serial.read();
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decode_c(); // Decode c.
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}
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// Check for the answer.
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if (mp3.available()){
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Serial.println(mp3.decodeMP3Answer()); // print decoded answers from mp3
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}
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}
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void menu(char op, int nval){
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// Menu
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switch (op){
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case '?':
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case 'h':
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Serial.println("SerialMP3Player Basic Commands:");
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Serial.println(" ? - Display Menu options. ");
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Serial.println(" P01 - Play 01 file");
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Serial.println(" F01 - Play 01 folder");
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Serial.println(" S01 - Play 01 file in loop");
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Serial.println(" V01 - Play 01 file, volume 30");
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Serial.println(" p - Play");
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Serial.println(" a - pause");
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Serial.println(" s - stop ");
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Serial.println(" > - Next");
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Serial.println(" < - Previous");
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Serial.println(" + - Volume UP");
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Serial.println(" - - Volume DOWN");
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Serial.println(" v15 - Set Volume to 15");
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Serial.println(" c - Query current file");
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Serial.println(" q - Query status");
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Serial.println(" x - Query folder count");
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Serial.println(" t - Query total file count");
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Serial.println(" r - Reset");
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Serial.println(" e - Sleep");
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Serial.println(" w - Wake up");
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break;
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case 'P':
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Serial.println("Play");
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mp3.play(nval);
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break;
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case 'F':
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Serial.println("Play Folder");
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mp3.playF(nval);
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break;
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case 'S':
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Serial.println("Play loop");
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mp3.playSL(nval);
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break;
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case 'V':
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Serial.println("Play file at 30 volume");
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mp3.play(nval,30);
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break;
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case 'p':
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Serial.println("Play");
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mp3.play();
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break;
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case 'a':
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Serial.println("Pause");
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mp3.pause();
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break;
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case 's':
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Serial.println("Stop");
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mp3.stop();
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break;
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case '>':
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Serial.println("Next");
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mp3.playNext();
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break;
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case '<':
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Serial.println("Previous");
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mp3.playPrevious();
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break;
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case '+':
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Serial.println("Volume UP");
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mp3.volUp();
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break;
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case '-':
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Serial.println("Volume Down");
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mp3.volDown();
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break;
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case 'v':
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Serial.println("Set to Volume");
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mp3.setVol(nval);
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mp3.qVol();
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break;
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case 'c':
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Serial.println("Query current file");
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mp3.qPlaying();
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break;
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case 'q':
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Serial.println("Query status");
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mp3.qStatus();
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break;
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case 'x':
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Serial.println("Query folder count");
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mp3.qTFolders();
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break;
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case 't':
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Serial.println("Query total file count");
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mp3.qTTracks();
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break;
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case 'r':
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Serial.println("Reset");
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mp3.reset();
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break;
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case 'e':
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Serial.println("Sleep");
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mp3.sleep();
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break;
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case 'w':
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Serial.println("Wake up");
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mp3.wakeup();
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break;
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}
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}
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void decode_c(){
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// Decode c looking for a specific command or a digit
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// if c is a 'v', 'P', 'F', 'S' or 'V' wait for the number XX
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if (c=='v' || c=='P' || c=='F' || c=='S' || c=='V'){
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cmd=c;
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}else{
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// maybe c is part of XX number
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if(c>='0' && c<='9'){
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// if c is a digit
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if(cmd1==' '){
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// if cmd1 is empty then c is the first digit
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cmd1 = c;
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}else{
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// if cmd1 is not empty c is the second digit
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menu(cmd, ((cmd1-'0')*10)+(c-'0'));
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cmd = ' ';
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cmd1 = ' ';
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}
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}else{
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// c is not a digit nor 'v', 'P', 'F' or 'S' so just call menu(c, nval);
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menu(c, 0);
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}
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}
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}
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