BassOwl-HAT

Hardware-On-Top addon for Raspberry Pi / ASUS ThinkerBoard with TAS5825M stereo amplifier, 30W RMS per channel.

Product description

BassOwl-HAT is an expansion board for Raspberry Pi and ASUS ThinkerBoard, designed for Hi-Fi music playback.

It is powered by the TAS5825M from Texas Instruments, a stereo Class-D Smart Audio amplifier able to deliver up to 30W RMS per channel. BassOwl-HAT does not require any external device or amplifier to play music, two loudspeakers can be connected directly to the screw-terminal connectors.

BassOwl-HAT requires an external power supply with volgage between 12V and 24V to function properly. It is not necessary to connect additional power sources, because a dedicated 5V/3A DCDC converter will back-power the Raspberry Pi.

Two optional MEMS Microphone modules can be connected to the BassOwl-HAT, for adding voice-control capabilities to the system.

Power Supply Selection

BassOwl-HAT can used with a broad range of power supply.

• Voltage: 12V minimum, 24V maximum
• Current: 3A minimum, 5A recommended
• Connector: Barrel Jack 5.5x2.1mm
• Polarity: positive

For achieving higher output power, please select a power supply with higher voltage / current capabilities.

How to use

Proper driver integration is still work-in-progress, as a partial workaround a generic dt-overlay and a script launched at startup can be used. BassFly-uHAT will work fine, but no Hardware volume-control will be available (Software volume control will work fine).

Install script for Volumio

SSH needs to be enabled. Open a SSH session and type following commands:

• With 12V Power supply

  wget https://raw.githubusercontent.com/Darmur/bassowl-hat/master/scripts/install_tas5825m_12V_volumio.sh
  chmod a+x install_tas5825m_12V_volumio.sh
  sudo ./install_tas5825m_12V_volumio.sh

• With 15V Power supply

  wget https://raw.githubusercontent.com/Darmur/bassowl-hat/master/scripts/install_tas5825m_15V_volumio.sh
  chmod a+x install_tas5825m_15V_volumio.sh
  sudo ./install_tas5825m_15V_volumio.sh

• With 20V Power supply

  wget https://raw.githubusercontent.com/Darmur/bassowl-hat/master/scripts/install_tas5825m_20V_volumio.sh
  chmod a+x install_tas5825m_20V_volumio.sh
  sudo ./install_tas5825m_20V_volumio.sh

• With 24V Power supply

  wget https://raw.githubusercontent.com/Darmur/bassowl-hat/master/scripts/install_tas5825m_24V_volumio.sh
  chmod a+x install_tas5825m_24V_volumio.sh
  sudo ./install_tas5825m_24V_volumio.sh

  Please select "Generic I2S DAC" under Volumio playback options, then reboot.

Install script for Raspbian/Raspios

Please type following commands (from terminal or SSH session):

• With 12V Power supply

  wget https://raw.githubusercontent.com/Darmur/bassowl-hat/master/scripts/install_tas5825m_12V_raspios.sh
  chmod a+x install_tas5825m_12V_raspios.sh
  sudo ./install_tas5825m_12V_raspios.sh

• With 15V Power supply

  wget https://raw.githubusercontent.com/Darmur/bassowl-hat/master/scripts/install_tas5825m_15V_raspios.sh
  chmod a+x install_tas5825m_15V_raspios.sh
  sudo ./install_tas5825m_15V_raspios.sh

• With 20V Power supply

  wget https://raw.githubusercontent.com/Darmur/bassowl-hat/master/scripts/install_tas5825m_20V_raspios.sh
  chmod a+x install_tas5825m_20V_raspios.sh
  sudo ./install_tas5825m_20V_raspios.sh

• With 24V Power supply

  wget https://raw.githubusercontent.com/Darmur/bassowl-hat/master/scripts/install_tas5825m_24V_raspios.sh
  chmod a+x install_tas5825m_24V_raspios.sh
  sudo ./install_tas5825m_24V_raspios.sh

  After reboot BassFly-uHAT will be up and running