BY8001语音模块ARDUINO范例程序 -

// BY8001.cpp, BY8001 Mp3 Player Function Library
// Date: June 2015
// Author: borland of Arduino forum
// No affiliation with Balway Electronics Technology or Shenzhen Electronics Technology Ltd.
// Released in public domain
#include "Arduino.h"
#include "BY8001.h"
BY8001::BY8001() {
sendBuffer[0] = 0x7E;
sendBuffer[6] = 0xEF;
}
void BY8001::setup(Stream& serial){
mp3Serial = &serial;
}
void BY8001::sendCommand(byte cmd){
sendBuffer[1] = 0x03; // length
sendBuffer[2] = cmd;
fillCheckCode();
sendBuffer[4] = 0xEF;
txFunc();
}
void BY8001::sendCommand(byte cmd, byte pmtr){
sendBuffer[1] = 0x04; // length
sendBuffer[2] = cmd;
sendBuffer[3] = pmtr;
fillCheckCode();
sendBuffer[5] = 0xEF;
txFunc();
}
void BY8001::sendCommand(byte cmd, word pmtr){
sendBuffer[1] = 0x05; // length
sendBuffer[2] = cmd;
sendBuffer[3] = highByte(pmtr); sendBuffer[4] = lowByte(pmtr);
fillCheckCode();
txFunc();
}
void BY8001::sendCommand(byte cmd, byte pmtr1, byte pmtr2){
sendBuffer[1] = 0x05; // length
sendBuffer[2] = cmd;
sendBuffer[3] = pmtr1; sendBuffer[4] = pmtr2;
fillCheckCode();
txFunc();
}
void BY8001::fillCheckCode(){
byte checkCode = getCheckCode();
sendBuffer[(int)sendBuffer[1]] = checkCode;
}
byte BY8001::getCheckCode(){
byte count = 0;
int j = sendBuffer[1];
for(int i=1; i<j; i++){
count = count ^ sendBuffer[i]; // XOR checksum or check code
}
return count;
}
void BY8001::txFunc(){
while ( mp3Serial->available() >0 ) mp3Serial->read();
mp3Serial->write(sendBuffer, (int)sendBuffer[1] + 2);
}
void BY8001::rxFunc(int length){
// delay 130ms
unsigned long mTimer = millis(); while (millis() - mTimer < 130) {}
mp3Serial->readBytes(receiveBuffer, length);
}
word BY8001::getReply(int length, int offset){
rxFunc(length);
word value = strtoul(receiveBuffer + offset, NULL, 16);
return value;
}
// User Command Functions:
void BY8001::play(){
sendCommand(0x01);
}
void BY8001::pause(){
sendCommand(0x02);
}
void BY8001::nextTrack(){
sendCommand(0x03);
}
void BY8001::previousTrack(){
sendCommand(0x04);
}
void BY8001::increaseVolume(){
sendCommand(0x05);
}
void BY8001::decreaseVolume(){
sendCommand(0x06);
}
void BY8001::toggleStandbyMode(){
sendCommand(0x07);
}
void BY8001::resetModule(){
sendCommand(0x09);
}
void BY8001::fastForward(){
sendCommand(0x0A);
}
void BY8001::fastRewind(){
sendCommand(0x0B);
}
void BY8001::stopPlayback(){
sendCommand(0x0E);
}
void BY8001::setVolume(int volume){
sendCommand(0x31, (byte) volume);
// delay 100ms
unsigned long mTimer = millis(); while (millis() - mTimer < 100) {}
}
void BY8001::setEqualizerProfile(int equalizerProfile){
sendCommand(0x32,(byte) equalizerProfile );
// delay 100ms
unsigned long mTimer = millis(); while (millis() - mTimer < 100) {}
}
void BY8001::setLoopPlaybackMode(int loopPlaybackMode){
sendCommand(0x33,(byte) loopPlaybackMode );
// delay 100ms
unsigned long mTimer = millis(); while (millis() - mTimer < 100) {}
}
void BY8001::switchFolder(int swDirection){
sendCommand(0x34, (byte) swDirection);
}
void BY8001::switchDevice(int device){
sendCommand(0x35,(byte) device );
}
void BY8001::playTrackByIndexNumber(word trackNumber){
sendCommand(0x41, trackNumber);
}
void BY8001::playTrackFromFolder(int folderNumber, int trackNumber){
sendCommand(0x42, (byte) folderNumber, (byte) trackNumber);
}
void BY8001::playInsertionSpot(int trackNumber){
sendCommand(0x43, (byte) trackNumber);
}
void BY8001::playInsertionFromFolder(int folderNumber, int trackNumber){
sendCommand(0x44, (byte) folderNumber, (byte) trackNumber);
}
// User Query Commands:
byte BY8001::getPlaybackStatus(){
sendCommand(0x10);
byte currentStatus = getReply(8,0);
return currentStatus;
}
byte BY8001::getVolumeSetting(){
sendCommand(0x11);
byte volume = getReply(8,0);
return volume;
}
byte BY8001::getEqualizerProfile(){
sendCommand(0x12);
word profile = getReply(8,0);
return (byte)profile;
}
byte BY8001::getLoopPlaybackMode(){
sendCommand(0x13);
byte loopPlaybackMode = getReply(8,0);
return loopPlaybackMode;
}
char* BY8001::getFirmwareVersion(){
sendCommand(0x14);
rxFunc(4);
String versionReturned = receiveBuffer;
char * fwVersion = new char[5];
versionReturned = versionReturned.substring(0,4);
versionReturned.toCharArray(fwVersion,5);
return fwVersion;
}
word BY8001::getNumberOfTracksTF(){
sendCommand(0x15);
word numberOfTracksTF = getReply(8,0);
return numberOfTracksTF;
}
word BY8001::getNumberOfTracksUSB(){
sendCommand(0x16);
word numberOfTracksUSB = getReply(8,0);
return numberOfTracksUSB;
}
byte BY8001::getCurrentPlaybackDevice(){
sendCommand(0x18);
byte device = getReply(8,0);
return device;
}
word BY8001::getCurrentTrackTF(){
sendCommand(0x19);
word currentTrackTF = getReply(8,0);
return currentTrackTF;
}
word BY8001::getCurrentTrackUSB(){
sendCommand(0x1A);
word currentTrackUSB = getReply(8,0);
return currentTrackUSB;
}
word BY8001::getElapsedTrackPlaybackTime(){
sendCommand(0x1C);
word elapsedTrackPlaybackTime = getReply(8,2);
return elapsedTrackPlaybackTime;
}
word BY8001::getTotalTrackPlaybackTime(){
sendCommand(0x1D);
word totalTrackPlaybackTime = getReply(8,2);
return totalTrackPlaybackTime;
}
char* BY8001::getFileNameCurrentTrack(){
// delay 130ms
unsigned long mTimer = millis(); while (millis() - mTimer < 130) {}
sendCommand(0x1E);
rxFunc(15);
String nameReturned = receiveBuffer;
char * name = new char[10];
nameReturned = nameReturned.substring(0,15);
if (nameReturned.endsWith("\r\n") == true) {
nameReturned = nameReturned.substring(2,10);
}
else {
nameReturned = nameReturned.substring(0,8);
}
nameReturned.toCharArray(name,9);
return name;
}
word BY8001::getNumberOfTracksCurrentFolder(){
sendCommand(0x1F);
word numberTracksCurrentFolder = getReply(8,2);
return numberTracksCurrentFolder;
}

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