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August 17, 2019

Audio module MP3 / WAV

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WAV / MP3 Voice Module Sound Player 16MB FLASH, Programmable Control, USB Download FLASH Port

  • Support MP3, WAV high quality audio format files.
  • 24-bit DAC output with 93dB dynamic range and 85dB signal-to-noise ratio.
  • Full support for FAT16, FAT32 file system, maximum support for 16M FLASH, 32G USB disk.
  • Support UART asynchronous serial port control: playback, pause, up and down music, volume addition and subtraction, song selection, insert and so on.
  • The ADKEY function allows 5-button control and other functions of the standard MP3 function through resistor selection.
  • Built-in volume, track power-down memory function.
  • Support USB connection to the computer to download sound.
  • With 3W power amplifier, you can directly play the external speaker; if the volume is not enough, the customer can also connect the amplifier.
  • Operating Temperature: -20℃~85℃
  • Operating Humidity: 5% ~ 95% RH
  • Module Size: 24*19*11.5mm 

Pins: 

  1. SPK2 external passive speaker (directly connected to the two ends of the passive speaker)
  2. SPK1 external passive speaker (directly connected to the two ends of the passive speaker)
  3. DP connection USB disk or USB connection computer to download sound
  4. DM connection USB disk or USB connection computer to download sound
  5. 5V power supply positive (DC 3.4 – 5.5 V)
  6. BUSY Outputs high level during playback, pauses or stops low
  7. TX UART asynchronous serial data output (3.3V TTL signal)
  8. RX UART asynchronous serial port data input (3.3V TTL signal)
  9. ADKEY A variety of button function selections through resistor values
  10. DACR right channel audio signal output (can be connected to a single dual channel amplifier)
  11. DACL left channel audio signal output (can be connected to a single dual channel amplifier)
  12. GND System Ground

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