From ElectroDragon
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Function introduction

  • Support audio, digital transmission, U disk playback, TF card playback. Support MP3, WAV.FLAC. code
  • Optional: Serial port AT refers to the air system. Support to modify the baud to modify the Bluetooth name, specify device playback, and handcuff data transparent transmission
  • Support BLE and SPP dual mode data transmission, while also playing Bluetooth audio, no conflict
  • Support Bluetooth call, multi-button control, simple function of last song, next song, play pause, volume adjustment, etc.
  • Ultra-compact peripheral, ultra-low cost, modular design
  • Rich use of information. Refer to pcb, use video explanation, mobile phone transparent video explanation, serial AT video and solution