AM-136 MP3 Audio in AD4 Format Playback Module for 3.3v Arduino

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US$7.69
AM-136
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MP3 Audio in AD4 Format Playback Module for 3.3v Arduino

This product allows for direct playback of MP3 Audio files encoded in AD4 file format stored on a MicroSD/TF card. The module features an output that can drive an 8ohm speaker using the SPK+ and SPK+ pins. Alternatively, you can drive a single ended amplifier directly from the DAC output via the AUDIO-L pin. This unit also has some few dedicated pins to allow microcontroller signals to control playback features such as play and pause, track forward/backwards and volume up/down. You could also use a two wire serial interface to select the track and send playback controls.

Please note: To use this product with a 5v Arduino such as the UNO, please use a level shifter as the signal lines are not 5v compliant.

Specifications:

  • Supports up to 1GB MicroSD Cards
  • Supports 4Bit ADCPM Format Files
  • Sampling Rate: 6KHz to 36KHz for AD4 Format
  • Sampling Rate: 6KHz to 16KHz for WAV Format
  • 16 Bit DAC/PWM Audio Outputs
  • Operating Voltage: 2.7 – 3.5VDC (3.3V) Recommend
  • Quiescent Current: 3uA

Tutorial: http://www.instructables.com/id/How-to-use-WTV020SD-16P-with-Arduino/

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