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

The YX5300 MP3 Player Module is a compact and versatile audio playback module manufactured by Yuanze Semiconductor. It is designed to simplify the integration of audio functionality into electronic projects. The module supports MP3 and WAV audio formats and features a built-in microSD card slot for audio file storage. It can be controlled via UART serial communication, making it compatible with microcontrollers like Arduino, Raspberry Pi, and other embedded systems.

• Audio playback in IoT devices
• Voice prompts and notifications in embedded systems
• Interactive kiosks and vending machines
• Educational and hobbyist projects
• Alarm and alert systems

The following table outlines the key technical details of the YX5300 MP3 Player Module:

The YX5300 module has a total of 6 pins. The table below describes each pin:

1. Power the Module: Connect the VCC pin to a 5V power source and the GND pin to ground.
2. Connect to a Microcontroller:
   • Connect the TX pin of the YX5300 to the RX pin of the microcontroller.
   • Connect the RX pin of the YX5300 to the TX pin of the microcontroller.
3. Audio Output:
   • For speaker output, connect a small speaker (4Ω or 8Ω) to the SPK1 and SPK2 pins.
   • Alternatively, use the stereo audio output pins (if available) for external amplifiers or headphones.
4. Insert a microSD Card:
   • Format the microSD card to FAT16 or FAT32.
   • Load MP3 or WAV files onto the card and insert it into the module's slot.
5. Control the Module:
   • Use UART commands to control playback, volume, and track selection.

• Ensure the microSD card is properly formatted and contains supported audio files.
• Use a level shifter if your microcontroller operates at 3.3V logic levels to avoid damaging the module.
• Avoid connecting high-power speakers directly to the module; use an external amplifier if needed.
• Keep the UART communication baud rate at 9600 bps unless reconfigured.

Below is an example of how to control the YX5300 module using an Arduino UNO:

#include <SoftwareSerial.h>

// Define RX and TX pins for SoftwareSerial
SoftwareSerial mp3Serial(10, 11); // RX = Pin 10, TX = Pin 11

void setup() {
  mp3Serial.begin(9600); // Initialize serial communication with the module
  Serial.begin(9600);    // Initialize serial monitor for debugging

  delay(500); // Allow the module to initialize

  // Send command to play the first track
  playTrack(1);
}

void loop() {
  // Add your logic here (e.g., play next track, pause, etc.)
}

// Function to send a command to play a specific track
void playTrack(uint16_t trackNumber) {
  uint8_t command[] = {0x7E, 0xFF, 0x06, 0x03, 0x00, 
                       (uint8_t)(trackNumber >> 8), 
                       (uint8_t)(trackNumber & 0xFF), 0xEF};
  sendCommand(command, sizeof(command));
}

// Function to send a command to the YX5300 module
void sendCommand(uint8_t *command, uint8_t length) {
  for (uint8_t i = 0; i < length; i++) {
    mp3Serial.write(command[i]);
  }
}

• The playTrack() function sends a command to play a specific track by its number.
• The command format follows the YX5300 protocol, which uses a fixed structure for UART communication.
• Ensure the RX and TX pins are correctly connected to the Arduino.

1. No Sound Output:

   • Verify the speaker connections to SPK1 and SPK2.
   • Check that the microSD card is properly inserted and contains supported audio files.
   • Ensure the module is receiving power (3.2V to 5.0V).

2. Module Not Responding to Commands:

   • Confirm the RX and TX connections between the module and microcontroller.
   • Ensure the UART baud rate is set to 9600 bps.
   • Check for loose or incorrect wiring.

3. Audio Playback is Distorted:

   • Use a speaker with the recommended impedance (4Ω or 8Ω).
   • Avoid overdriving the module by connecting high-power speakers directly.

4. MicroSD Card Not Recognized:

   • Format the card to FAT16 or FAT32.
   • Ensure the card capacity does not exceed 32GB.

Q: Can the YX5300 play audio files in formats other than MP3 or WAV?
A: No, the module only supports MP3 and WAV formats.

Q: What is the maximum number of tracks the module can handle?
A: The module can handle up to 255 tracks in a single folder.

Q: Can I use the YX5300 with a 3.3V microcontroller?
A: Yes, but you should use a level shifter to safely interface the UART pins.

Q: Is it possible to control the volume programmatically?
A: Yes, the module supports UART commands to adjust the volume.

Q: Does the module support playback from USB drives?
A: No, the YX5300 only supports playback from microSD cards.