Dayton – Don Luc Electronics

Project #16: Sound – ESP32 – Mk27

October 29, 2025 by DonLuc

——

#DonLucElectronics #DonLuc #MiniMP3Player #FireBeetle2ESP32E #ESP32 #DFRobot #Display #IoT #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant

——

FireBeetle 2 ESP32-E

FireBeetle 2 ESP32-E, specially designed for IoT, is an ESP-WROOM-32E-based main controller board with dual-core chips. FireBeetle 2 ESP32-E supports Arduino programming, support Scratch graphical programming and MicroPython programming. We provide you with detailed online tutorials and application cases, and there are thousands of sensors with welding-free Gravity interfaces and actuators to help you get started easily. Besides, the stamp hole design makes it able to be easily embedded in your PCB, greatly saving your costs and time to build and test a prototype.

Gravity: Digital Push Button (Red)

Digital push button with LED, wide voltage range, durable design, and easy plug-and-play functionality. Comes with a cable and features a gold surface.

Gravity: Analog Rotation Potentiometer Sensor

This Arduino-compatible rotation potentiometer rotates 300 degrees, allowing easy interaction and MIDI production with expansion boards; works on 3.3V-5V.

MP3

1.mp3 – William Shakespeare
2.mp3 – Albert Einstein
3.mp3 – Luc Paquin
4.mp3 – Carl Sagan
5.mp3 – Dalek

DL2510Mk03

1 x DFRobot FireBeetle 2 ESP32-E
1 x Fermion: 2.0″ 320×240 IPS TFT LCD
1 x GDL Line 10 CM
1 x Gravity: IO Shield for FireBeetle 2
1 x Mini MP3 Player
1 x 1K Ohm Resistor
1 x Speaker
1 x Gravity: Analog Rotation Potentiometer
1 x Gravity: Digital Push Button (Red)
1 x Lithium Ion Battery – 1000mAh
1 x Switch
1 x SPDT Slide Switch
1 x USB-A to Micro-B Cable

DL2510Mk03p

DL2510Mk03p.ino

/****** Don Luc Electronics © ******
Software Version Information
Project #16: Sound – ESP32 – Mk27
16-27
DL2509Mk03p.ino
DL2509Mk03
1 x DFRobot FireBeetle 2 ESP32-E
1 x Fermion: 2.0" 320x240 IPS TFT LCD
1 x GDL Line 10 CM
1 x Gravity: IO Shield for FireBeetle 2
1 x Mini MP3 Player
1 x 1K Ohm Resistor
1 x Gravity: Analog Rotation Potentiometer
1 x Gravity: Digital Push Button (Red)
1 x Speaker
1 x Lithium Ion Battery - 1000mAh
1 x Switch
1 x SPDT Slide Switch
1 x USB-A to Micro-B Cable
*/

// Include the Library Code
// EEPROM Library to Read and Write EEPROM
// with Unique ID for Unit
#include "EEPROM.h"
// Arduino
#include "Arduino.h"
// DFRobot Display GDL API
#include <DFRobot_GDL.h>
// DFRobot DFPlayer Mini
#include "DFRobotDFPlayerMini.h"

// FPSerial
#define FPSerial Serial1

// DFRobot DFPlayer Mini
DFRobotDFPlayerMini myDFPlayer;

// Button R
int iButR = D12;
int iValR;

// Volume Potentiometer
int iVolPot = A0;
int iValV;

// Defined ESP32
#define TFT_DC  D2
#define TFT_CS  D6
#define TFT_RST D3

/*dc=*/ /*cs=*/ /*rst=*/
// DFRobot Display 240x320
DFRobot_ST7789_240x320_HW_SPI screen(TFT_DC, TFT_CS, TFT_RST);

// EEPROM Unique ID Information
#define EEPROM_SIZE 64
String uid = "";

// Software Version Information
String sver = "16-27";

void loop() {
  
  // isMP3
  isMP3();

  // isDisplayMP3
  isDisplayMP3();

  // Delay
  delay( 200 );
  
}

getDisplay.ino

// DFRobot Display 240x320
// DFRobot Display 240x320 - UID
void isDisplayUID(){

  // DFRobot Display 240x320
  // Text Display
  // Text Wrap
  screen.setTextWrap(false);
  // Rotation
  screen.setRotation(3);
  // Fill Screen => black
  screen.fillScreen(0x0000);
  // Text Color => white
  screen.setTextColor(0xffff);
  // Font => Free Sans Bold 12pt
  screen.setFont(&FreeSansBold12pt7b);
  // TextSize => 1.5
  screen.setTextSize(1.5);
  // Don Luc Electronics
  screen.setCursor(0, 30);
  screen.println("Don Luc Electronics");
  // SD
  screen.setCursor(0, 60);
  screen.println("GDFPlayer Mini");
  // Version
  screen.setCursor(0, 90);
  screen.println("Version");
  screen.setCursor(0, 120);
  screen.println( sver );
  // EEPROM
  screen.setCursor(0, 150);
  screen.println("EEPROM");
  screen.setCursor(0, 180);
  screen.println( uid );

}
// isDisplayMP3
void isDisplayMP3(){

  // DFRobot Display 240x320
  // Text Display
  // Text Wrap
  screen.setTextWrap(false);
  // Rotation
  screen.setRotation(3);
  // Fill Screen => white
  screen.fillScreen(0xffff);
  // Text Color => blue
  screen.setTextColor(0x001F);
  // Font => Free Sans Bold 12pt
  screen.setFont(&FreeSansBold12pt7b);
  // TextSize => 1.5
  screen.setTextSize(1.5);
  // Geiger
  screen.setCursor(0, 30);
  screen.println("MP3");
  // 1.mp3 - William Shakespeare
  screen.setCursor(0, 60);
  screen.println("1.mp3 - William Shakespeare");
  // 2.mp3 - Albert Einstein
  screen.setCursor(0, 90);
  screen.println( "2.mp3 - Albert Einstein" );
  // 3.mp3 - Luc Paquin
  screen.setCursor(0, 120);
  screen.println( "3.mp3 - Luc Paquin" );
// 4.mp3 - Carl Sagan
  screen.setCursor(0, 150);
  screen.println( "4.mp3 - Carl Sagan" );
 // 5.mp3 - Dalek
  screen.setCursor(0, 180);
  screen.println( "5.mp3 - Dalek" );
  
}

getEEPROM.ino

// EEPROM
// isUID EEPROM Unique ID
void isUID() {
  
  // Is Unit ID
  uid = "";
  for (int x = 0; x < 7; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }

}

getMiniMP3.ino

// Mini MP3
// isSetupMP3
void isSetupMP3(){

  // Mini MP3
  // isACK
  // doReset
  myDFPlayer.begin(FPSerial, true, true);

  // Set serial communictaion time out 500ms
  myDFPlayer.setTimeOut(500);
  
}
// isMP3
void isMP3(){
  
  // Volume Potentiometer
  iValV = analogRead(iVolPot);
  
  // Mapping function
  iValV = map(iValV, 0, 4095, 0, 30);

  // Set volume value. From 0 to 30
  myDFPlayer.volume( iValV );

  // iValR
  iValR = digitalRead(iButR);

  // Check high iButR is pressed down.
  if (iValR == HIGH) { 

    // Play next mp3
    myDFPlayer.next();

  }
  
}

setup.ino

// Setup
void setup()
{
 
  // Delay
  delay( 100 );

  // EEPROM Size
  EEPROM.begin(EEPROM_SIZE);

  // EEPROM Unique ID
  isUID();

  // Delay
  delay( 100 );

  // FPSerial
  // rx
  // tx
  FPSerial.begin(9600, SERIAL_8N1, D7, D5);

  // Delay
  delay( 100 );

  // Button R
  pinMode(iButR, INPUT);

  // Delay
  delay(100);

  // isSetupMP3
  isSetupMP3();

  // Delay
  delay(100);
  
  // DFRobot Display 240x320
  screen.begin();

  // Delay
  delay(100);

  // DFRobot Display 240x320 - UID
  // Don Luc Electronics
  // Version
  // EEPROM
  isDisplayUID();

  // Delay 5 Second
  delay( 5000 );

  

}

——

People can contact us: https://www.donluc.com/?page_id=1927

Consultant, R&D, Electronics, IoT, Teacher and Instructor

Programming Language
Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi, Arm, Silicon Labs, Espressif, Etc…)
IoT
Wireless (Radio Frequency, Bluetooth, WiFi, Etc…)
Robotics
Automation
Camera and Video Capture Receiver Stationary, Wheel/Tank , Underwater and UAV Vehicle
Unmanned Vehicles Terrestrial, Marine and UAV
Machine Learning
Artificial Intelligence (AI)
RTOS
Sensors, eHealth Sensors, Biosensor, and Biometric
Research & Development (R & D)
Consulting

Follow Us

Luc Paquin – Curriculum Vitae – 2024
https://www.donluc.com/luc/

Web: https://www.donluc.com/
Facebook: https://www.facebook.com/neosteam.labs.9/
YouTube: https://www.youtube.com/@thesass2063
Twitter: https://twitter.com/labs_steam
Pinterest: https://www.pinterest.com/NeoSteamLabs/
Instagram: https://www.instagram.com/neosteamlabs/
DFRobot: https://learn.dfrobot.com/user-10186.html
Elecrow: https://www.elecrow.com/share/sharepj/center/no/760816d385ebb1edc0732fd873bfbf13
TikTok: https://www.tiktok.com/@luc.paquin8
Hackster: https://www.hackster.io/luc-paquin
LinkedIn: https://www.linkedin.com/in/jlucpaquin/

Don Luc

Project #16: Sound – Mini MP3 Player – Mk26

October 22, 2025 by DonLuc

——

#DonLucElectronics #DonLuc #MiniMP3Player #IoT #Project #Fritzing #Programming #Electronics #Microcontrollers #Consultant

——

Mini MP3 Player

Mini MP3 Player is a compact and inexpensive MP3 module that can be connected directly to the speaker. The module can be used alone with a battery power supply, speaker, and keypad, or through the serial port control, as the Arduino UNO compatible board or any microcontroller with a serial port module. The module itself perfectly integrated hardware decodes MP3, WAV, and WMA’s. The software supports TF card drivers to support FAT16, FAT32 file systems. This can be done by the simple serial command that plays the specified music, as well as how to play music and other functions, easy to use, stable and reliable.

Play next MP3 every 8 second.

1.mp3 – William Shakespeare
2.mp3 – Albert Einstein
3.mp3 – Luc Paquin
4.mp3 – Carl Sagan
5.mp3 – Dalek

DL2510Mk02

1 x SparkFun RedBoard Qwiic
1 x Mini MP3 Player
1 x Speaker
1 x USB Battery Pack
1 x USB-A to Micro-B Cable

DL2510Mk02p

DL2510Mk02p.ino

/****** Don Luc Electronics © ******
Software Version Information
Project #16: Sound – Mini MP3 Player – Mk26
16-26
DL2509Mk02p.ino
DL2509Mk02
1 x SparkFun RedBoard Qwiic
1 x Mini MP3 Player
1 x Speaker
1 x USB Battery Pack
1 x USB-A to Micro-B Cable
*/

// Include the Library Code
// EEPROM Library to Read and Write EEPROM
// with Unique ID for Unit
#include "EEPROM.h"
// Arduino
#include "Arduino.h"
// Software Serial
#include "SoftwareSerial.h"
// DFRobot DFPlayer Mini
#include "DFRobotDFPlayerMini.h"

// Software Serial RX, TX
SoftwareSerial mySoftwareSerial(10, 11);
// DFRobot DFPlayer Mini
DFRobotDFPlayerMini myDFPlayer;

// EEPROM Unique ID Information
String uid = "";

// Software Version Information
String sver = "16-26";

void loop() {
  
  // isMP3
  isMP3();

}

getEEPROM.ino

// EEPROM
// isUID EEPROM Unique ID
void isUID() {
  
  // Is Unit ID
  uid = "";
  for (int x = 0; x < 7; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }

}

getMiniMP3.ino

// Mini MP3
// isSetupMP3
void isSetupMP3(){

  // Mini MP3
  myDFPlayer.begin(mySoftwareSerial);
  
  // Set volume value. From 0 to 30
  myDFPlayer.volume(20);
  
  // Play the first MP3
  myDFPlayer.play(1);
  
}
// isMP3
void isMP3(){
  
  // Timer
  static unsigned long timer = millis();
  
  // isMp3
  if (millis() - timer > 8000) {
    
    // Time
    timer = millis();
    
    // Play next mp3 every 8 second
    myDFPlayer.next();

  }

  myDFPlayer.available();
  
}

setup.ino

// Setup
void setup()
{
 
  // Delay
  delay( 100 );

  // EEPROM Unique ID
  isUID();

  // Delay
  delay( 100 );

  // Software Serial
  mySoftwareSerial.begin(9600);

  // Delay
  delay( 100 );

  // isSetupMP3
  isSetupMP3();
    
  // Delay 1 Second
  delay( 1000 );

}

——

People can contact us: https://www.donluc.com/?page_id=1927

Consultant, R&D, Electronics, IoT, Teacher and Instructor

Programming Language
Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi, Arm, Silicon Labs, Espressif, Etc…)
IoT
Wireless (Radio Frequency, Bluetooth, WiFi, Etc…)
Robotics
Automation
Camera and Video Capture Receiver Stationary, Wheel/Tank , Underwater and UAV Vehicle
Unmanned Vehicles Terrestrial, Marine and UAV
Machine Learning
Artificial Intelligence (AI)
RTOS
Sensors, eHealth Sensors, Biosensor, and Biometric
Research & Development (R & D)
Consulting

Follow Us

Luc Paquin – Curriculum Vitae – 2024
https://www.donluc.com/luc/

Don Luc

Project #16: Sound – SparkFun ProtoShield Kit – Mk23

March 11, 2023 by DonLuc

——

#DonLucElectronics #DonLuc #Sound #Arduino #MicroOLED #ProtoShield #SparkFunQwiicMP3 #SparkFunRedBoardQwiic #Project #Programming #Electronics #Microcontrollers #Consultant

——

SparkFun ProtoShield Kit

The SparkFun ProtoShield Kit lets you customize your own Arduino shield using whatever circuit you can come up with and then test it to make sure everything is working the way it should. The SparkFun ProtoShield Kit is based off the Arduino R3’s footprint that allows you to easily incorporate it with favorite Arduino-based device.

One of our favorite features with this version of the ProtoShield Kit is the solderable-like breadboard prototyping area. Half of this area was designed with a breadboard in mind. On the underside of the shield you will be able to see open jumper pads between each through hole to make a connection like a breadboard. Once you add a component, simply add a solder jumper between holes to make a connection. For those that prefer the standard prototyping pads.

DL2301Mk04

1 x SparkFun RedBoard Qwiic
1 x SparkFun ProtoShield Kit
1 x SparkFun Micro OLED Breakout (Qwiic)
1 x SparkFun Qwiic MP3 Trigger
1 x microSD Card – 2GB
1 x Panel Mount 10K potentiometer
1 x Knob
2 x Rocker Switch – SPST (Round)
1 x Qwiic Cable – 50mm
1 x Qwiic Cable – 100mm
1 x Dayton Audio Reference 3″ Full-Range Drive
1 x SparkFun Cerberus USB Cable

——

SparkFun RedBoard Qwiic

PO1 – Analog A0
SDA – Analog A4
SCL – Analog A5
SW0 – Digital 8
SW1 – Digital 7
VIN – +5V
VIN – +3.3V
GND – GND

——

DL2301Mk04p.ino

/* ***** Don Luc Electronics © *****
Software Version Information
#16 - Sound - SparkFun ProtoShield Kit - Mk23
16-04
DL2301Mk04p.ino
1 x SparkFun RedBoard Qwiic
1 x SparkFun ProtoShield Kit
1 x SparkFun Micro OLED Breakout (Qwiic)
1 x SparkFun Qwiic MP3 Trigger
1 x microSD Card - 2GB
1 x Panel Mount 10K potentiometer
1 x Knob
2 x Rocker Switch - SPST (Round)
1 x Qwiic Cable - 50mm
1 x Qwiic Cable - 100mm
1 x Dayton Audio Reference 3" Full-Range Drive
1 x SparkFun Cerberus USB Cable
*/

// Include the Library Code
// Wire communicate with I2C / TWI devices
#include <Wire.h>
// SparkFun MP3 Trigger
#include "SparkFun_Qwiic_MP3_Trigger_Arduino_Library.h"
// SparkFun Micro OLED
#include <SFE_MicroOLED.h>

// SparkFun MP3 Trigger
MP3TRIGGER mp3;
int iSongCount = 0;
int x = 0;

// Volume
int iVolume = A0;
int iVolumeLevel = 0;

// EQ Setting Normal
byte bEQSetting = 0;

// Play Next
const int iPlayNext = 8;
// Variable for reading the iPlayNext status
int iPlayNextState = 0;

// Play Previous
const int iPlayPrevious = 7;
// Variable for reading the iPlayPrevious status
int iPlayPreviousState = 0;

// SparkFun Micro OLED
#define PIN_RESET 9
#define DC_JUMPER 1
// I2C declaration
MicroOLED oled(PIN_RESET, DC_JUMPER);

// iLED ProtoShield
int iLED = 13;

// Software Version Information
String sver = "16-23";

void loop()
{
    
  // SparkFun MP3 Trigger
  if (mp3.isPlaying() == false) {

    if ( x > iSongCount ) {

      x = 0;
      
    } else {

      x = x + 1;
      
    }
    
    // Play Track
    mp3.playTrack( x );

  } else {

    // Volume
    isVolume();

    // Play Next
    isPlayNext();

    // Play Previous
    isPlayPrevious();

  }

  // Micro OLED
  isMicroOLED();
    
}

getMP3.ino

// MP3
// Setup MP3
void isSetupMP3(){

  // Check to see if Qwiic MP3 is present on the bus
  if (mp3.begin() == false)
  {
    
    // Qwiic MP3 failed to respond. Please check wiring and possibly the I2C address. Freezing...
    while (1);
    
  }

  if (mp3.hasCard() == false)
  {
    
    // Qwiic MP3 is missing its SD card. Freezing...
    while (1);
    
  }

  // Song Count
  iSongCount = mp3.getSongCount();

  // EQ Setting
  // 0 Normal
  // 1 Pop
  // 2 Rock
  // 3 Jazz
  // 4 Classic
  // 5 Bass
  bEQSetting = 5;
  bEQSetting = mp3.getEQ();

  // Initialize the iPlayNext
  pinMode( iPlayNext, INPUT);

  // Initialize the iPlayPrevious
  pinMode( iPlayPrevious, INPUT);

}
// Volume
void isVolume() {

  // Volume
  iVolumeLevel = analogRead( iVolume );
  // (0-1023 for 10 bits or 0-4095 for 12 bits)
  iVolumeLevel = map(iVolumeLevel, 0, 1023, 0, 10);

  // Volume can be 0 (off) to 31 (max)
  // Volume can be 0 (off) to 10 (Breakfast)
  mp3.setVolume( iVolumeLevel );
  
}
// Play Next
void isPlayNext() {

  // Read the state of the iPlayNext value
  iPlayNextState = digitalRead( iPlayNext );

  if ( iPlayNextState == HIGH ) {

    mp3.stop();
    
    if ( x > iSongCount ) {

      x = 0;
      
    } else {

      x = x + 1;
      
    }
    
    // Play Track
    mp3.playTrack( x );  
    
  } 

}
// Play Previous
void isPlayPrevious() {

  // Read the state of the iPlayPrevious value
  iPlayPreviousState = digitalRead( iPlayPrevious );

  if ( iPlayPreviousState == HIGH ) {

    mp3.stop();
    
    if ( x > iSongCount ) {

      x = 0;
      
    } else {

      x = x - 1;
      
    }
    
    // Play Track
    mp3.playTrack( x );
    
  } 

}

getMicroOLED.ino

// SparkFun Micro OLED
// Setup Micro OLED
void isSetupMicroOLED() {

  // Initialize the OLED
  oled.begin();
  // Clear the display's internal memory
  oled.clear(ALL);
  // Display what's in the buffer (splashscreen)
  oled.display();

  // Delay 1000 ms
  delay(1000);

  // Clear the buffer.
  oled.clear(PAGE);
  
}
// Micro OLED
void isMicroOLED() {

  // Text Display FreeIMU
  // Clear the display
  oled.clear(PAGE);
  // Set cursor to top-left
  oled.setCursor(0, 0);
  // Set font to type 0
  oled.setFontType(0);
  // Song
  oled.print("Song");
  // Song Name
  oled.setCursor(0, 13);
  String songName = mp3.getSongName();
  oled.print( songName );
  // Song Count
  oled.setCursor(0, 24);
  oled.print("Song Count");
  // Song Count
  oled.setCursor(0, 37);
  iSongCount = mp3.getSongCount();
  oled.print( iSongCount );
  oled.display();

}

setup.ino

// Setup
void setup()
{
   
  // Initialize digital pin iLED ProtoShield as an output
  pinMode(iLED, OUTPUT);
  // Turn the LED on (HIGH is the voltage level)
  digitalWrite(iLED, HIGH);
  
  // Wire communicate with I2C / TWI devices
  Wire.begin();

  // SparkFun MP3 Trigger Setup
  isSetupMP3();

  // Setup Micro OLED
  isSetupMicroOLED();

}

——

People can contact us: https://www.donluc.com/?page_id=1927

Technology Experience

Programming Language
Single-Board Microcontrollers (PIC, Arduino, Raspberry Pi,Espressif, etc…)
IoT
Wireless (Radio Frequency, Bluetooth, WiFi, Etc…)
Robotics
Camera and Video Capture Receiver Stationary, Wheel/Tank and Underwater Vehicle
Unmanned Vehicles Terrestrial and Marine
Machine Learning
RTOS
Research & Development (R & D)

Instructor, E-Mentor, STEAM, and Arts-Based Training

Programming Language
IoT
PIC Microcontrollers
Arduino
Raspberry Pi
Espressif
Robotics

Follow Us

Luc Paquin – Curriculum Vitae – 2023
https://www.donluc.com/luc/

Don Luc

Project #16: Sound – Dayton Audio RS75T-8 – Mk20

July 18, 2021 by DonLuc

——

#DonLucElectronics #DonLuc #Sound #Arduino #ESP32 #SparkFunThingPlusESP32WROOM #SparkFunQwiicMP3 #DaytonAudioRS75T #Project #Programming #Electronics #Microcontrollers #Consultant #VideoBlog

——

Dayton Audio RS75T-8 3″ Reference Full-Range Driver Truncated Frame

The Dayton Audio Reference Series sets a new standard of value in high-performance loudspeaker drivers. Incorporating a low-distortion motor system with a copper ring, a copper cap, and an aluminum phase plug, the RS75T-8 can outperform “boutique” drivers that cost several times the price. The driver’s truncated frame makes it ideal for line arrays and ultra-compact MTM designs requiring minimal driver-to-driver spacing. Its low-distortion characteristics and smooth response provide exceptional clarity, detail, and dynamics. Features a black anodized cone, heavy-duty 4-hole cast frame, low-loss rubber surround, and gold terminals.

DL2107Mk02

1 x SparkFun Thing Plus – ESP32 WROOM
1 x SparkFun Qwiic MP3 Trigger
1 x microSD Card – 2GB
1 x Panel Mount 10K potentiometer
1 x Knob
1 x Slide Switch
2 x Rocker Switch – SPST (Round)
1 x Qwiic Cable – 50mm
1 x Dayton Audio Reference 3″ Full-Range Drive
1 x Lithium Ion Battery – 850mAh
1 x JST Jumper 2 Wire Assembly
2 x Screw Terminals 5mm Pitch (2-Pin)
1 x Acrylic Blue 5.75in x 3.75in x 1/8in
1 x Acrylic Purple 5.75in x 3.75in x 1/8in
24 x Screw – 4-40
4 x Nut – Nylon Locknut 4-40
6 x Standoff – Metal 4-40 – 3/8″
8 x Standoff – Metal 4-40 – 1″
18 x Wire Solid Core – 22 AWG
1 x Adafruit Perma-Prote Half-Size Breadboard
1 x SparkFun Cerberus USB Cable

SparkFun Thing Plus – ESP32 WROOM

PO1 – Analog A0
SW0 – Digital 21
SW1 – Digital 17
VIN – +3.3V
GND – GND

DL2107Mk02p.ino

/* ***** Don Luc Electronics © *****
Software Version Information
#16 - Sound - Dayton Audio RS75T-8 - Mk20
07-02
DL2107Mk02p.ino
1 x SparkFun Thing Plus - ESP32 WROOM
1 x SparkFun Qwiic MP3 Trigger
1 x microSD Card - 2GB
1 x Panel Mount 10K potentiometer
1 x Knob
1 x Slide Switch
2 x Rocker Switch - SPST (Round)
1 x Qwiic Cable - 50mm
1 x Dayton Audio Reference 3" Full-Range Drive
1 x Lithium Ion Battery - 850mAh
1 x JST Jumper 2 Wire Assembly
2 x Screw Terminals 5mm Pitch (2-Pin)
1 x Acrylic Blue 5.75in x 3.75in x 1/8in
1 x Acrylic Purple 5.75in x 3.75in x 1/8in
24 x Screw - 4-40
4 x Nut - Nylon Locknut 4-40
6 x Standoff - Metal 4-40 - 3/8"
8 x Standoff - Metal 4-40 - 1"
18 x Wire Solid Core - 22 AWG
1 x Adafruit Perma-Prote Half-Size Breadboard
1 x SparkFun Cerberus USB Cable
*/

// Include the Library Code
// Wire communicate with I2C / TWI devices
#include <Wire.h>
// SparkFun MP3 Trigger
#include "SparkFun_Qwiic_MP3_Trigger_Arduino_Library.h"

// SparkFun MP3 Trigger
MP3TRIGGER mp3;

int iSongCount = 0;
int x = 0;

// Volume
int iVolume = A0;
int iVolumeLevel = 0;

// EQ Setting Normal
byte bEQSetting = 0;

// Play Next
const int iPlayNext = 21;
// Variable for reading the iPlayNext status
int iPlayNextState = 0;

// Play Previous
const int iPlayPrevious = 17;
// Variable for reading the iPlayPrevious status
int iPlayPreviousState = 0;

// Software Version Information
String sver = "16-20";

void loop()
{
    
   if (mp3.isPlaying() == false) {

    if ( x > iSongCount ) {

      x = 0;
      
    } else {

      x = x + 1;
      
    }
    
    // Play Track
    mp3.playTrack( x );
    
  } else {

    // Volume
    isVolume();

    // Play Next
    isPlayNext();

    // Play Previous
    isPlayPrevious();

  }

}

getMP3.ino

// MP3
// Setup MP3
void isSetupMP3(){

  // Check to see if Qwiic MP3 is present on the bus
  if (mp3.begin() == false)
  {
    
    // Qwiic MP3 failed to respond. Please check wiring and possibly the I2C address. Freezing...
    while (1);
    
  }

  if (mp3.hasCard() == false)
  {
    
    // Qwiic MP3 is missing its SD card. Freezing...
    while (1);
    
  }

  // Song Count
  iSongCount = mp3.getSongCount();

  // EQ Setting Classic
  bEQSetting = mp3.getEQ();

  // Initialize the iPlayNext
  pinMode( iPlayNext, INPUT);

  // Initialize the iPlayPrevious
  pinMode( iPlayPrevious, INPUT);

}
// Volume
void isVolume() {

  // Volume
  iVolumeLevel = analogRead( iVolume );
  // (0-1023 for 10 bits or 0-4095 for 12 bits)
  iVolumeLevel = map(iVolumeLevel, 0, 4095, 0, 31);

  // Volume can be 0 (off) to 31 (max)
  mp3.setVolume( iVolumeLevel );
  
}
// Play Next
void isPlayNext() {

  // Read the state of the iPlayNext value
  iPlayNextState = digitalRead( iPlayNext );

  if ( iPlayNextState == HIGH ) {

    mp3.stop();
    
    if ( x > iSongCount ) {

      x = 0;
      
    } else {

      x = x + 1;
      
    }
    
    // Play Track
    mp3.playTrack( x );     
    
  } 

}
// Play Previous
void isPlayPrevious() {

  // Read the state of the iPlayPrevious value
  iPlayPreviousState = digitalRead( iPlayPrevious );

  if ( iPlayPreviousState == HIGH ) {

    mp3.stop();
    
    if ( x > iSongCount ) {

      x = 0;
      
    } else {

      x = x - 1;
      
    }
    
    // Play Track
    mp3.playTrack( x );     
    
  } 

}

setup.ino

// Setup
void setup()
{
   
   // Wire communicate with I2C / TWI devices
   Wire.begin();

   // SparkFun MP3 Trigger Setup
   isSetupMP3();

}

——

People can contact us: https://www.donluc.com/?page_id=1927

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Don Luc

Dayton Audio: 3″ Full-Range Driver

March 16, 2018 by DonLuc

Dayton Audio: 3″ Reference Full-Range Truncated Frame 8 Ohm

Dayton Audio: RS75T-8

Don Luc

Dayton Audio: 3″ Full-Range Driver

February 26, 2018 by DonLuc

Dayton Audio: Reference Series 3″ Full-Range Driver

Dayton Audio: RS75T-8 & RS75-4

RS75T-8 3″ Reference Full-Range Truncated Frame 8 Ohm

Quick Overview

Incorporating a low-distortion motor system with a copper ring, a copper cap, and an aluminum phase plug, the RS75T-8 can outperform “boutique” drivers that cost several times the price.

Product Highlights
• Truncated cast frame-great for line arrays and MTM speaker designs
• Full-range performance
• Low distortion and high resolution
• Aluminum frame, aluminum cone, rubber surround
• Distortion-reducing copper ring, copper cap, and aluminum phase plug
• Subtle yet high-tech look makes a bold cosmetic statement

Product Description

***********

RS75-4 3″ Reference Full-Range Driver 4 Ohm

Quick Overview

Incorporating a low-distortion motor system with a copper ring, a copper cap, and an aluminum phase plug, the RS75-4 can outperform “boutique” drivers that cost several times the price.

Product Highlights
• Full-range performance
• Low distortion and high resolution
• Aluminum frame, aluminum cone, rubber surround
• Distortion-reducing copper ring, copper cap, and aluminum phase plug
• Subtle yet high-tech look makes a bold cosmetic statement

Product Description

The Dayton Audio Reference Series sets a new standard of value in high-performance loudspeaker drivers. Incorporating a low-distortion motor system with a copper ring, a copper cap, and an aluminum phase plug, the RS75-4 can outperform “boutique” drivers that cost several times the price. Its low-distortion characteristics and smooth response provide exceptional clarity, detail, and dynamics. Features a black anodized cone, heavy-duty 4-hole cast frame, low-loss rubber surround, and gold terminals.

Don Luc