Raspberry Pi Pinout

Digi HAT

  • Dedicated S/PDIF output interface chip supports up to 192kHz / 24bit
  • Digital audio output over either optical (TOSLINK) or coaxial (RCA electrical) connectors
  • Low jitter, bit perfect digital output
  • Output transformer for galvanic isolation
  • Software volume control from your Raspberry Pi
  • Powered by the Raspberry Pi GPIO header
  • Optional IR receiver via GPIO25
  • All Raspberry Pi GPIO pins still accessible via 40pin unpopulated


  • Made by JustBoom
  • HAT form-factor
  • EEPROM auto configuration
  • Needs 5v and 3v3 power
  • Uses 8 GPIO pins
  • Communication over I2C
  • 0x3B: WM8804G
  • More Information
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Digi HAT