Power Optimization

Power Optimization

Disable unused resources on Raspberry PI in order to reduce power consumption. Right now, ansible playbook is written to provide option to disable below resources(tasks/prepare-pi.yml#L85-L109), there are

• HDMI

  # Disable
  $ sudo /opt/vc/bin/tvservice -o
  
  # Enable
  $ sudo /opt/vc/bin/tvservice -p
  

• Bluetooth Add blow config in /boot/config.txt

  [all]
  dtoverlay=disable-bt
  

  Disable bluetooth related services

  sudo systemctl stop {bluetooth,hciuart}
  sudo systemctl disable {bluetooth,hciuart}
  

Other option can try which mentioned in this blog

• Disable USB Controller Disable USB controller

  echo '1-1' |sudo tee /sys/bus/usb/drivers/usb/unbind
  

  Enable USB controller

  echo '1-1' |sudo tee /sys/bus/usb/drivers/usb/bind
  

• Disable on-board LEDs Add below config in /boot/config.txt

  [pi4]
  # Disable the PWR LED
  dtparam=pwr_led_trigger=none
  dtparam=pwr_led_activelow=off
  # Disable the Activity LED
  dtparam=act_led_trigger=none
  dtparam=act_led_activelow=off
  # Disable ethernet port LEDs
  dtparam=eth_led0=4
  dtparam=eth_led1=4
  

Reference

• https://github.com/veerendra2/raspberrypi-homeserver/issues/43