- The DAC can be configured by adding
dtoverlay=hifiberry-dac
to the/boot/config.txt
file. - There is a DAC enable pin—BCM 25— that must be driven high to enable the DAC. You can do this by adding
gpio=25=op,dh
to the/boot/config.txt
file. - The buttons are active low and connected to pins BCM 5, 6, 16, and 24.
- The display uses SPI, and you’ll need to enable SPI through the Raspberry Pi configuration menu.
- If you want to use these boards with a Pibow Coupé case (either for the Zero / Zero W or Pi 4), then you’ll need to use a booster header to raise it up a little.