Hi, All:
I'm trying to combine three DFPlayers. So I have wired two of them. It reads the first, but not the second. Even if I comment out the first one it still does not work. Both DFPlayers work when placed in the first slot, but doesn't when I put it in the second slot. I know in the photo that the second one has a missing sd card.
I suspect I may not have the code right.
Can someone please tell me what I'm doing wrong? Thanks!
#include "Arduino.h"
#include "SoftwareSerial.h"
#include "DFRobotDFPlayerMini.h"
SoftwareSerial twoChannelSerial(4, 5); // RX, TX
SoftwareSerial oneChannelSerial(6, 7); // RX, TX
DFRobotDFPlayerMini myDFPlayerTwo;
DFRobotDFPlayerMini myDFPlayerOne;
void printDetail(uint8_t type, int value);
void setup()
{
twoChannelSerial.begin(9600);
oneChannelSerial.begin(9700);
Serial.begin(115200);
Serial.println();
Serial.println(F("DFRobot DFPlayer Mini Demo"));
Serial.println(F("Initializing DFPlayer ... (May take 3~5 seconds)"));
if (!myDFPlayerTwo.begin(twoChannelSerial)) { //Use softwareSerial to communicate with mp3.
Serial.println(F("Two Unable to begin:"));
Serial.println(F("1.Please recheck the connection!"));
Serial.println(F("2.Please insert the SD card!"));
while(true);
}
Serial.println(F("DFPlayerTwo Mini online."));
if (!myDFPlayerOne.begin(oneChannelSerial)) { //Use softwareSerial to communicate with mp3.
Serial.println(F("One Unable to begin:"));
Serial.println(F("1.Please recheck the connection!"));
Serial.println(F("2.Please insert the SD card!"));
while(true);
}
Serial.println(F("DFPlayerOne Mini online."));
myDFPlayerOne.volume(10); //Set volume value. From 0 to 30
myDFPlayerOne.play(1); //Play the first mp3
myDFPlayerTwo.volume(10); //Set volume value. From 0 to 30
myDFPlayerOne.play(1); //Play the first mp3
}
void loop()
{
static unsigned long timer = millis();
if (millis() - timer > 3000) {
timer = millis();
}
if (myDFPlayerOne.available()) {
printDetail(myDFPlayerOne.readType(), myDFPlayerOne.read()); //Print the detail message from DFPlayer to handle different errors and states.
}
}
void printDetail(uint8_t type, int value){
switch (type) {
case TimeOut:
Serial.println(F("Time Out!"));
break;
case WrongStack:
Serial.println(F("Stack Wrong!"));
break;
case DFPlayerCardInserted:
Serial.println(F("Card Inserted!"));
break;
case DFPlayerCardRemoved:
Serial.println(F("Card Removed!"));
break;
case DFPlayerCardOnline:
Serial.println(F("Card Online!"));
break;
case DFPlayerPlayFinished:
Serial.print(F("Number:"));
Serial.print(value);
Serial.println(F(" Play Finished!"));
break;
case DFPlayerError:
Serial.print(F("DFPlayerError:"));
switch (value) {
case Busy:
Serial.println(F("Card not found"));
break;
case Sleeping:
Serial.println(F("Sleeping"));
break;
case SerialWrongStack:
Serial.println(F("Get Wrong Stack"));
break;
case CheckSumNotMatch:
Serial.println(F("Check Sum Not Match"));
break;
case FileIndexOut:
Serial.println(F("File Index Out of Bound"));
break;
case FileMismatch:
Serial.println(F("Cannot Find File"));
break;
case Advertise:
Serial.println(F("In Advertise"));
break;
default:
break;
}
break;
default:
break;
}
}
