Files
ansible/roles/pi_hifiberry_amp/README.md
Martin Bauer f434429dd1 Switch musicdolphin from a Pi 4 to a Pi 5
The SD card moves over as is, so:
- pi_standard_setup can install the Pi 5 kernel (linux-image-rpi-2712, an arm64
  package on the armhf userland), which a Pi 4 image lacks. Opt-in via
  pi_standard_setup_install_pi5_kernel.
- The Pi is powered through the HiFiBerry board's GPIO header, so it cannot negotiate
  a 5A supply and would cap USB at 600mA. pi_hifiberry_amp sets
  usb_max_current_enable=1 when hifiberry_powers_pi is true (default false).
- The DHT22 poller is off: Adafruit_DHT bit-bangs BCM283x registers, which the Pi 5
  no longer has (GPIO sits behind the RP1 chip).

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
2026-09-21 12:17:53 +02:00

346 B

pi_hifiberry_amp

Deactivates the Pi's onboard analog audio and activates a HiFiBerry amp/DAC overlay instead.

Key vars: hifiberry_overlay, hifiberry_powers_pi

hifiberry_powers_pi (default false) is for a Pi fed through the HiFiBerry board's GPIO header. On a Pi 5 that sets usb_max_current_enable=1, or USB is capped at 600mA.