Features

  • Sipeed Longan Nano: 128KB Flash/32KB SRAM
  • ES9023 24bit I2S Audio DAC
  • exFAT MicroSD (up to 512GB)
  • 44.1KHz 16bit Stereo WAV File
  • Tag information by LIST chunk in WAV File
  • Cover Art display by RGB565 binary format file
  • Folder/File navigation by ASCII order
  • Control by Android Headphone button (3 buttons)
  • Volume by utilizing DAC 24bit range for playing 16bit Audio data
  • Album unit random play by time out after play finish (Assuming [Artist Folder]/[Album Folder] structure)
  • Resume playback
  • Battery voltage check (Optional: external circuit needed)