OSSLab::開放軟體實驗室(Open Source Software Lab) > 硬體研究 > 嵌入式系統與硬體 - Embedded System and Hardware > ARM > Raspberry Pi > 最低耗能設定
在某些特殊應用情況，尤其使用電池供電時，需要儘可能關閉用不到的耗電服務。
Switching off the USB/LAN IC
Turn OFF USB chip
echo '1-1' |sudo tee /sys/bus/usb/drivers/usb/unbind
Turn ON USB chip
echo '1-1' |sudo tee /sys/bus/usb/drivers/usb/bind
Total = 7hrs 21mins
Turn OFF HDMI output
Turn OFF HDMI output
sudo /opt/vc/bin/tvservice -o
Turn ON HDMI output
sudo /opt/vc/bin/tvservice -p
Total = 4hrs 11mins
Throttle CPU
/boot/config.txt
arm_freq_min=250 core_freq_min=100 sdram_freq_min=150 over_voltage_min=0
Disable Wi-Fi & Bluetooth
/boot/config.txt：
dtoverlay=pi3-disable-wifi dtoverlay=pi3-disable-bt
Disable on-board LEDs
/boot/config.txt：
dtparam=act_led_trigger=none dtparam=act_led_activelow=on
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