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Revision as of 01:12, 19 November 2019 by Chao (talk | contribs) (EMBT_S02)
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  • EMBT1082



EMBT02 diagram.png

Audio Source Transmission Function

  • Support to send MP3 audio source from 3.5mm AUX in, output dual channels output tranmission
  • Support to send MP3 audio source from U disk playback (customize only, not available on this standard board)
  • Support to send MP3 audio source from computer USB sound card
  • Support bluetooth speaking from on board microphone

Audio Receive Function

  • Support dual sound channel output, so left +right
  • Support AUX 3.5mm in.
  • Support to play MP3 or WAV from U disk
  • Support to use as USB sound card and USB sound MIC

Function switch

  • Function switch by buttons, press button and power up will switch role mode
  • In receive mode, long press for switching device mode: bluetooth, AUX,
  • In send mode, long press to pause
  • In both mode, short press to control sound volume

Other Note

  • Only can pair with one receiver when in transmission mode
  • Support bluetooth earphone, audiobox, car audio box, etc,
  • The receiver audio device password must bee 0000, most device are so
  • Module both transmission and receiving are dual sound channel mode
  • Transmission distance is 10M
  • If multiple devices are pairing, it will connect randomly, but only connect to one target
  • Short press to control sound
  • please notice when connect to PC USB, it will be act as USB sound card, can not be paired, LED also blink in different frequency.
  • On board serial port for developer testing only, you can not use it.


Functions EDMMT2 Header text
Bluetooth Audio Yes Example
BLE data Yes Example
SPP data Yes Example
SPP or BLE data + Play Yes Example
U-disk play Yes Example
TF-card play Yes Example
MP3 Yes Example
FLAC Yes Example
APC Yes Example
Record mode 128KBS Yes