Audio Pro module (DIY)

Audio Pro module (DIY)

Regular price $20.00 Sale

Microduino AudioPro is a multifunctional audio module, with VS1053 as the decoder, integrating 2.2W stereo amplifying, and supporting 2.5mm stereo earphone interface and MIDI function.

Features

  • Support multiple formats of decoding:MP3/WMA/AAC/WAV/Ogg Vorbis/MIDI.
  • Can real-time imitate as much as 128 kinds of MIDI instruments.
  • Integrate 2.2w stereo amplifier.
  • With 2.5mm stereo earphone interface onboard.
  • Earphone/extroverted automatic switchover function.
  • SPI high-speed communication interface.
  • Small, cheap, stackable and open;
  • Open-source hardware circuit design, and compatible-with-Arduino programming development environment;
  • Unified Microduino interface specification and abundant periphery modules, which can be quickly extended and connected with other modules and sensors which meet the Microduino interface specification, conveniently and flexibly;
  • 2.54-spacing mother line interface is convenient for integration to the pegboard.

Specification

  • Support multiple formats of decoding: MP3/WMA/AAC/WAV/Ogg Vorbis/MIDI
  • Can real-time imitate as much as 128 kinds of MIDI instruments.
    • Universal MIDI and file 0 in SP‐MIDI format can be played, and files in format 1 and 2 must be transformed into format 0 by the users.
    • Number of polyphony is 64 at most, and the number of polyphony that can continue at most is 40.
  • Integrate 2.2w stereo amplifier(LM4863)
    • Can control the enable through the GPIO4 of VS1053.
  • With 2.5mm stereo earphone interface onboard.
  • Earphone/extroverted automatic switchover function.
  • 18-bit oversampling, multi-bit, sigma‐delta type high-precision DAC
    • Oversampling generally refers to higher sampling rate several times than the nominal sampling rate, and it is commonly used to improve the sampling accuracy. It means when restore the digital sound, use sampling rate several times higher than the nominal sampling rate to output, which can make the abrupt of the ladder of the audio flatten out, to lower the digital background noise and reduce the distortion, thereby get high-quality audio surpassing the effect of the original sampling rate outputting.
  • SPI high-speed communication interface
  • Electrical specification
    • VS1053: 3.3V, 30~60mA
    • LM4863: 5V, 1A