potentiometerL+ Wiring

L-
1. rightif pinyou towant 5Vstereo (Power)
2. middle pin to A0 (Signal)
3. left pin to GND (Ground) audio

File handling

The

order
1. You youcan copydownload our example-sounds.zip.
2. Connect the module to a computer with a USBC cable.
3. Create a folder called mp3.
4. Place the mp3 onto the micro SD card will affect the order mp3 played, which means the play(1) function will play the first mp3 copiedfiles into thethat micro SD card.

    MAC User Attention!
    If you are using Mac OS X to copy the mp3, the file system will automatically add hidden files like: "._0001.mp3" for index, which this module will handle as valid mp3 files.
   

   It is really annoying. To remove them, follow the below steps:

   1. Finder - Go to your USB drive
   2. Press Shift + Command + . to reveal all hidden files
   3. Select all .XXXXXX files and directories and delete
   4. Empty Bin
   5. Eject your USB drivefolder.

   Library

   DFRobotDFPlayerMiniDFRobot_DF1201S library will be used for this module. We have a tutorial on how to install a library here.

   Get Started

   In this example, we are using the potentiometer to control two audios. It will play the first audio when the potentiometer turns to the right and play the second when it turns to the left.

    DF layer will not initiate!
    If you didn't put in the SD card, or have no MP3 files in the SD card, the module will not work. Make sure you are using .mp3, not .wav or any other audio formats.
   

   #include <DFRobot_DF1201S.h>
   #include "SoftwareSerial.h"
   
   #includeSoftwareSerial "DFRobotDFPlayerMini.h"DF1201SSerial(2, 3);  // Use pins 2 and 3 to communicate with DFPlayer Mini
   static const uint8_t PIN_MP3_TX = 2; // Connects to module's RX
   static const uint8_t PIN_MP3_RX = 3; // Connects to module's  TX
   
   SoftwareSerialDFRobot_DF1201S softwareSerial(PIN_MP3_RX, PIN_MP3_TX);
   
   const int pot = A0;
   int potValue = 0;
   
   // Create the Player object
   DFRobotDFPlayerMini player;DF1201S;
   
   void setup() void){
   
     pinMode(pot, INPUT);
   
     // Init USB serial port for debugging
   
     Serial.begin(9600)115200);
     // Init serial port for DFPlayer Mini
     softwareSerial.DF1201SSerial.begin(9600)115200);
   
     // Start communication with DFPlayer Mini
     ifwhile (player.!DF1201S.begin(softwareSerial)DF1201SSerial)) {
       Serial.println("OK");Init //failed, Setplease volume to maximum (0 to 30).
       player.volume(30);
     } else {
       Serial.println("Connecting to DFPlayer Mini failed!");
     }      
   }
   
   void loop() {
   
   	potValue = analogRead(pot);
   
   	if(potValue > 500 ){ 
   
   	 static unsigned long timer = millis();
    	 if (millis() - timer > 2000) { //2000 ischeck the durationwire of the audio(1)
     		timer = millis(connection!");
   
      		//(2) is the 2rd file in the sd card, the order = the order you copied the file to it
      		player.play(2);  
     }
     
   	}else {
     	  static unsigned long timer = millis();
     
    	 if (millis() - timer > 3000) { //3000 is the duration of the audio(2)
     	  	timer = millis();
      		player.play(1); 
     		}
   	}
   }
   

   Better Library

   Since the official library uses delay() in the code, it can be problematic when the code is used with other components or sensors.

   DFRobotDFPlayerMini_Fast library will be used for this module. You will need to do a manual install for this library. FireTimer library is also needed.

   We have a tutorial on how to install a library here.

   Example code

   The wiring will be the same as above. For further details of this library API, please visit their github page.

   #include <DFPlayerMini_Fast.h>
   #include <SoftwareSerial.h>
   SoftwareSerial mySerial(3, 2); // RX, TX
   
   DFPlayerMini_Fast myMP3;
   
   void setup()
   {
     Serial.begin(115200);
     mySerial.begin(9600);
     myMP3.begin(mySerial, true);
       delay(1000);
     Serial.println("Setting}
   
     volume to max")DF1201S.setVol(0);
     myMP3.volume(30)DF1201S.switchFunction(DF1201S.MUSIC);
     Serial.println("Looping track 1")delay(2000);
     myMP3.loop(1)/*
       SINGLECYCLE = 1,  /**<Repeat one song 
       ALLCYCLE,         /**<Repeat all 
       SINGLE,           /**<Play one song only 
       RANDOM,           /**<Random
       FOLDER,           /**<Repeat all songs in folder 
     */
     DF1201S.setPlayMode(DF1201S.SINGLE); 
     DF1201S.setVol(20);
   
   }
   
   void loop()
   {
   
     DF1201S.playSpecFile("//domp3/005.mp3");
     nothingString fileName = DF1201S.getFileName();
     Serial.print("playing: ");
     Serial.println(fileName);
     delay(1000);
   
   }