禁用树莓派电源灯

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将以下几行加到 /boot/config.txt 即可禁用树莓派两盏指示灯。

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# Disable the ACT LED.
dtparam=act_led_trigger=none
dtparam=act_led_activelow=off

# Disable the PWR LED.
dtparam=pwr_led_trigger=none
dtparam=pwr_led_activelow=off

如果指示灯还亮着，把以下几行加到 /etc/rc.local 即可

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# Turn off ACT LED
echo gpio | tee /sys/class/leds/led0/trigger
echo 0 | tee /sys/class/leds/led0/brightness

# Turn off PWR LED
echo gpio | tee /sys/class/leds/led1/trigger
echo 0 | tee /sys/class/leds/led1/brightness

树莓派关闭摄像头灯

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disable_camera_led=1