How to Use YX5300 MP3 Player Module: Examples, Pinouts, and Specs

The YX5300 MP3 Player Module, manufactured by Yuanze Semiconductor, is a compact and versatile audio playback module designed for seamless integration into electronic projects. It supports MP3 and WAV audio formats and features a built-in amplifier for direct audio output. The module is controlled via a simple UART serial interface, making it ideal for use with microcontrollers such as Arduino, Raspberry Pi, and other embedded systems.

• Audio playback in IoT devices
• Voice prompts in automation systems
• Background music for interactive projects
• Educational and DIY electronics projects
• Portable audio systems

The YX5300 MP3 Player Module is designed to provide reliable and high-quality audio playback with minimal external components. Below are its key technical details:

The YX5300 module has a straightforward pin layout for easy integration. Below is the pin configuration:

The YX5300 MP3 Player Module is easy to use and requires minimal setup. Follow the steps below to integrate it into your project:

1. Power Supply: Connect the VCC pin to a 3.2V–5.0V power source and the GND pin to ground.
2. UART Communication: Connect the TX pin of the module to the RX pin of your microcontroller, and the RX pin of the module to the TX pin of your microcontroller.
3. Audio Output:
   • For speaker output, connect a small speaker to the SPK+ and SPK- pins.
   • For line-level output, use the DAC_R and DAC_L pins to connect to an external amplifier or headphones.
4. MicroSD Card: Insert a formatted MicroSD card (FAT16/32) containing audio files into the module's card slot.

The YX5300 module is controlled via UART commands. Below is an example of how to use the module with an Arduino UNO:

#include <SoftwareSerial.h>

// Define RX and TX pins for communication with the YX5300 module
SoftwareSerial mp3Serial(10, 11); // RX = Pin 10, TX = Pin 11

void setup() {
  // Initialize serial communication with the YX5300 module
  mp3Serial.begin(9600); // Default baud rate for the module
  Serial.begin(9600);    // For debugging via Serial Monitor

  // Send initialization command to the module
  sendCommand(0x3F, 0, 0); // Command 0x3F: Initialize the module
  delay(500);              // Wait for the module to initialize

  // Play the first track on the MicroSD card
  playTrack(1);
}

void loop() {
  // Add your main code here
}

// Function to send a command to the YX5300 module
void sendCommand(byte command, byte param1, byte param2) {
  byte checksum = 0xFFFF - (0xFF + 0x06 + command + param1 + param2) + 1;

  // Construct the command packet
  byte packet[] = {0x7E, 0xFF, 0x06, command, 0x00, param1, param2,
                   (byte)(checksum >> 8), (byte)(checksum & 0xFF), 0xEF};

  // Send the command packet to the module
  for (byte i = 0; i < 10; i++) {
    mp3Serial.write(packet[i]);
  }
}

// Function to play a specific track
void playTrack(int trackNumber) {
  sendCommand(0x03, 0x00, trackNumber); // Command 0x03: Play track
}

• Ensure the MicroSD card is properly formatted (FAT16 or FAT32) and contains supported audio files.
• Use a level shifter if your microcontroller operates at 3.3V logic levels to avoid damaging the module.
• Avoid powering the module directly from the Arduino's 5V pin if the current draw exceeds the Arduino's capacity.
• Use decoupling capacitors near the power pins to reduce noise and ensure stable operation.

1. No Audio Output:

   • Ensure the MicroSD card is properly inserted and formatted.
   • Verify that the audio files are in MP3 or WAV format.
   • Check the speaker or audio output connections.

2. Module Not Responding to Commands:

   • Confirm the UART connections (TX and RX) are correctly wired.
   • Ensure the baud rate is set to 9600 bps in your code.
   • Check for loose or faulty connections.

3. Distorted Audio:

   • Verify the speaker impedance matches the module's specifications.
   • Reduce the volume level using UART commands if distortion occurs.

4. MicroSD Card Not Detected:

   • Ensure the card is formatted as FAT16 or FAT32.
   • Check for physical damage or compatibility issues with the card.

Q: Can the YX5300 module play audio files in a specific order?
A: Yes, the module plays files in the order they are stored on the MicroSD card. You can also use UART commands to play specific tracks.

Q: What is the maximum supported MicroSD card size?
A: The module supports MicroSD cards up to 32GB.

Q: Can I control the volume programmatically?
A: Yes, you can adjust the volume using UART commands.

Q: Is the module compatible with 3.3V microcontrollers?
A: Yes, but you may need a level shifter for reliable UART communication.