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MP3 Player With MicroSD Card Reader WTV020SD RobotDYN

MP3 Player With MicroSD Card Reader WTV020SD RobotDYN

The WTV020SD MP3 Player with MicroSD Card Reader by RobotDyn is a compact and versatile audio playback module, perfect for embedding custom voice or sound effects into your projects. It can play recorded audio files directly from a MicroSD card and can handle up to 512 unique sound files. With its simple IC design, it is ideal for creating a tiny music player or adding audio capabilities to your robot or other electronics projects. For louder audio output, it can be paired with an amplifier like the PAM8403. This module can operate standalone or interface with any microcontroller, such as Arduino, using UART (TX & RX) ports.

Package Includes:

  • 1 × WTV020SD MP3 Player Module with MicroSD Card Reader
57.75 AED 57.75 AED Tax Included
57.75 AED Tax Included

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Features:

  • Compact Audio Module: Small IC for embedding audio playback into projects.
  • MicroSD Card Reader: Reads MP3 files directly from the SD card.
  • Multiple Sound Files: Supports up to 512 unique audio files.
  • Standalone or MCU Controlled: Can work independently or via UART with Arduino or other microcontrollers.
  • Amplifier Compatible: Can be connected to an external amplifier like PAM8403 for boosted audio output.
  • Custom Voice or Music: Ideal for robots, toys, or personal audio projects.

Specifications:

  • IC: WTV020SD audio playback IC
  • Audio Files: Supports up to 512 MP3/WAV files
  • Storage: MicroSD card slot
  • Control Interface: UART TX & RX for microcontroller communication
  • Standalone Capability: Can play audio independently
  • Amplifier Support: Compatible with PAM8403 or similar audio amplifiers

Pinout:

  • VCC: Connect to 3.3V power supply
  • GND: Ground
  • TX: Serial transmit to Arduino RX
  • RX: Serial receive from Arduino TX
  • SPK+ / SPK-: Connect to a small speaker (optional, or use an amplifier)

Arduino Test Code:

#include <SoftwareSerial.h>
SoftwareSerial wtvSerial(10, 11); // RX, TX pins to WTV020SD module
void setup() {
 Serial.begin(9600);
 wtvSerial.begin(9600);
 Serial.println("WTV020SD Test");
 delay(1000);
 // Play first audio file (001.wav / 001.mp3)
 playTrack(1);
}
void loop() {
 // Nothing else in loop
}
void playTrack(int track) {
 byte cmd[4];
 cmd[0] = 0xAA; // Start byte
 cmd[1] = 0x07; // Command: Play track
 cmd[2] = track; // Track number (1-255)
 cmd[3] = 0xAB; // End byte
 for(int i = 0; i < 4; i++) {
 wtvSerial.write(cmd[i]);
 }
 Serial.print("Playing track: ");
 Serial.println(track);
}

Notes:

  • Use 3.3V for VCC, depending on your module version.
  • Connect the TX of WTV020SD to Arduino RX and the RX of WTV020SD to Arduino TX.
  • You can add an external amplifier (like PAM8403) if you need louder audio.
  • MP3/WAV files should be named with 3-digit numbers: 001.wav, 002.wav, etc.