Slot-In Record Player with Arduino, Bluetooth, RFID & MP3

Turn an old "Slot-In Record Player" into a party staple with Bluetooth, an MP3 player and RFID tags.

BeginnerWork in progress660

Slot-In Record Player with Arduino, Bluetooth, RFID & MP3

Things used in this project

Hardware components

Micro-SD Memory Card Extension

SD Memory Card

Adafruit Music Maker MP3 Shield for Arduino

Seeed Studio Arduino Uno Rev3

Audio amplifier 7W mono Kit Velleman WSAH4001

Seeed Studio Grove - LCD RGB Backlight

× Micro Switch

Seeed Studio × Grove - 125KHz RFID Reader

Loud Speaker 8 Ω - 5 W 77 mm LS01-5

× Rotary Potentiometer 10K

Potentiometer Knob

DC Socket 2.1mm

× RFID Tag (Adhesive Paper Label) - 125kHz

Power supply 12 Vcc - 2 A

Resistor 1k ohm

Resistor 10k ohm

× Step Down regulator LM2596 (9V

KAB-215v2 2 x 15W Class D Audio Amplifier Board with Bluetooth 5.0

Story

When my teacher Jean Noel showed us his first version of the Arduino based slot recorder, a project he did years ago, we thought it was very cool and I decided to work on V3. This new version will have improvements mainly on the man-machine interface to make it more user-friendly.

For example, it will no longer be necessary to download a new Arduino sketch to update the playlist, you can do it directly by naming your .mp3 files on the SD card.

We also add an RGB LCD screen to give information to the user and make bright animations.

We add Bluetooth so that you can express yourself by listening to your favorite music from the music platform of your choice.

The record player becomes an essential object of your evenings.

Our plan is to make it as an easy to make DIY electronic kit and sell it on a large scale on Tindie.com.

We also want to launch a crowdfunding campaign, on Indiegogo or Kickstarter.

They talk about our project: Arduino Team https://blog.arduino.cc/2022/07/21/playing-record-covers-instead-of-the-vinyl

They talk about our project: Seeed Studio https://www.linkedin.com/posts/seeedstudio_projectspotlight-project-arduino-activity-6957218402998390784-filY

Code

MangeDiskV3.ino

#include <Arduino.h>
#include <Wire.h>
#include "rgb_lcd.h"
//https://www.arduinolibraries.info/libraries/grove-lcd-rgb-backlight
// include SPI, MP3 and SD libraries
#include <SPI.h>
#include <Adafruit_VS1053.h>
#include <SD.h>
//https://wiki.seeedstudio.com/Grove-125KHz_RFID_Reader/
#include <SoftwareSerial.h>

// These are the pins used for the music maker shield
#define SHIELD_RESET  -1      // VS1053 reset pin (unused!)
#define SHIELD_CS     7      // VS1053 chip select pin (output)
#define SHIELD_DCS    6      // VS1053 Data/command select pin (output)

// These are common pins between breakout and shield
#define CARDCS 4     // Card chip select pin
// DREQ should be an Int pin, see http://arduino.cc/en/Reference/attachInterrupt
#define DREQ 3       // VS1053 Data request, ideally an Interrupt pin


#define START 0x02
#define END 0x03
#define RFID_SCAN_PIN 9
#define SWITCH 2

SoftwareSerial Rfid(8, 0); 
rgb_lcd lcd;
Adafruit_VS1053_FilePlayer musicPlayer = 
  Adafruit_VS1053_FilePlayer(SHIELD_RESET, SHIELD_CS, SHIELD_DCS, DREQ, CARDCS);
 


bool DiskIn=false;
int VolumePot =0;
int NOISE =20;
String CurrentTrack ="";

byte RougeVal = 0;
byte VertVal = 0;
byte BleuVal = 0;



 
void setup(void) 
{
  pinMode(SWITCH, INPUT_PULLUP); 
  Serial.begin(115200); 
  Serial.println("Ready to Play music !");
  Rfid.begin(9600);
  lcd.begin(16, 2);
  lcd.setRGB(255, 0, 0);
  lcd.print("Ready to Play");
  lcd.setCursor(0, 1);
  lcd.print("Music");
  if (! musicPlayer.begin()) { // initialise the music player
     Serial.println(F("Couldn't find VS1053, do you have the right pins defined?"));
     while (1);
  }
  Serial.println(F("VS1053 found"));
  SD.begin(CARDCS);    // initialise the SD card 
 
  // If DREQ is on an interrupt pin (on uno, #2 or #3) we can do background
  // audio playing
  musicPlayer.useInterrupt(VS1053_FILEPLAYER_PIN_INT);  // DREQ int
}
//******************************************************************
void loop(void) 
{
  char RecievedChar;
  static int OldVolume=-1000;
  int Volume= map(VolumePot, 0, 1023, 31,0);

  int ColorG= map (VolumePot, 0, 1023, 0,255);
  int ColorR= map (VolumePot, 0, 1023, 255,0);

 
  if (!digitalRead(SWITCH) && !DiskIn )
  {
    DiskIn=true; 
    Serial.println("Disk IN");
    delay(100);
  }
  if (digitalRead(SWITCH) && DiskIn )
  {
    DiskIn=false;
    Serial.println("Disk OUT");
    musicPlayer.stopPlaying();
    CurrentTrack ="";
    lcd.clear();
    lcd.print("Ready to Play");
    lcd.setCursor(0, 1);
    lcd.print("Music");
  }

   int VolumeAfficher= map(VolumePot, 0, 1023, 0,100);
   if (DiskIn)
   {
    lcd.setRGB(ColorR, ColorG, 0);
  
   
    
   }
   
   else lcd.setRGB(255, 0, 0);
   
  
  VolumePot = analogRead(0);
   
  if(abs(OldVolume-VolumePot)>NOISE) 
  {
    
    Serial.println(Volume);
    musicPlayer.setVolume(Volume,Volume);
    OldVolume=VolumePot;
  }

  if (Rfid.available())             
  {
      RecievedChar=Rfid.read();
      ReadTag(RecievedChar);
  }

 
}
//**************************************************************************************
void ReadTag(char RecievedChar)
{
  static int Counter=0;
  static String ReceivedCode = "";
  if(isprint(RecievedChar)) ReceivedCode+=RecievedChar; 
      
      if(RecievedChar==START) Counter=0;
      else Counter++;
      if(RecievedChar==END) 
        {
          ReceivedCode.remove(10, 2); 
          ReceivedCode.remove(0, 2); 
          ReceivedCode = ReceivedCode + ".mp3";
          PlayMusic(ReceivedCode);
          ReceivedCode=""; 
        }
}
//**************************************************************************************
void PlayMusic(String Track)
{
  
  char Ctrack[]="12345678.mp3"; 
         
   Track.toCharArray(Ctrack, 13);
  Serial.println(Ctrack);
  lcd.clear();
  lcd.print("Playing track:");
  lcd.setCursor(0, 1);
  lcd.print(Ctrack);
  
  if((CurrentTrack!=Track)&&(DiskIn)) musicPlayer.startPlayingFile(Ctrack);
  CurrentTrack=Track;
}