DFPlayerMiniTest

//Rev 0 This was developed on 12/19/2022 and is a simple sketch allowing the user to test out the DFPlayer Mini using ESP32 Node MCU - Note ththe DFPlayer Mini is wired to the ESP32 it is to the Arduino
//#include <SoftwareSerial.h> //Note this is the ESP32 Software Serial
#include <HardwareSerial.h>
#include "Arduino.h" //Needed for FullFunction DFRobotDFPlayerMini library sketch
#include "DFRobotDFPlayerMini.h" //Needed for FullFunction DFRobotDFPlayerMini library sketch

//Now to Use a Software Serial Port to Control DFPlayer Mini
//SoftwareSerial portTwo(27, 26); //Here ESP32 GPIO27 is Rx and ESP32 GPIO26 is Tx
//Connect ESP32 GPIO 27 to DFPlayer Mini Pin Tx through 1 kΩ Resistor
//Connect ESP32 GPIO 26 to DFPlayer Mini Pin Rx through 1 kΩ Resistor
HardwareSerial MySerial(1);
#define DFPlayerTx 27
#define DFPlayerRx 26
DFRobotDFPlayerMini myDFPlayer; //Defines an Object to Call the DFPlayer Mini with object name myDFPlayer - Needed for FullFunction DFRobotDFPlayerMini library sketch
void printDetail(uint8_t type, int value); //Needed for FullFunction DFRobotDFPlayerMini library sketch
int volC=25; //Volume Level returned from VolumeControl function

void setup() {
  Serial.begin (9600); //Starts up the serial monitor
  //portTwo.begin(9600); //Start Serial Port to DFPlayer Mini
  MySerial.begin(9600, SERIAL_8N1, DFPlayerTx, DFPlayerRx);

  //Start of DFPlayer Mini setup - comes from FullFunction DFRobotDFPlayerMini library sketch
  Serial.println();
  Serial.println(F("DFRobot DFPlayer Mini Demo"));
  Serial.println(F("Initializing DFPlayer ... (May take 3~5 seconds)"));

  if (!myDFPlayer.begin(MySerial)) {  //Use hardware serial to communicate with DFPlayerMini
    Serial.println(F("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("DFPlayer Mini online."));

  myDFPlayer.setTimeOut(500); //Set serial communictaion time out 500ms

  //----Set volume----
  myDFPlayer.volume(volC);  //Set volume value (0~30).
  myDFPlayer.volumeUp(); //Volume Up
  myDFPlayer.volumeDown(); //Volume Down

  //----Set different EQ----
  myDFPlayer.EQ(DFPLAYER_EQ_NORMAL);

  //----Set device we use SD as default----
  myDFPlayer.outputDevice(DFPLAYER_DEVICE_SD);

  //----Read imformation----
  Serial.println(myDFPlayer.readState()); //read mp3 state
  Serial.println(myDFPlayer.readVolume()); //read current volume
  Serial.println(myDFPlayer.readEQ()); //read EQ setting
  Serial.println(myDFPlayer.readFileCounts()); //read all file counts in SD card
  Serial.println(myDFPlayer.readCurrentFileNumber()); //read current play file number
  Serial.println(myDFPlayer.readFileCountsInFolder(3)); //read file counts in folder SD:/03
  //End of DFPlayer Mini setup
}

void loop() { //Start of void loop

  //This if statement comes from FullFunction DFRobotDFPlayerMini library sketch
  //if (myDFPlayer.available()) {
    //printDetail(myDFPlayer.readType(), myDFPlayer.read()); //Print the detail message from DFPlayer to handle different errors and states.
 //   myDFPlayer.enableLoopAll(); //loop all mp3 files.
 // }

 myDFPlayer.enableLoopAll(); //loop all mp3 files.

} //End of void loop

//References
//Reference 1- To use a second serial port in the ESP32 https://quadmeup.com/arduino-esp32-and-3-hardware-serial-ports/