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Turn off the HDMI output on the Raspberry Pi 3B+

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Turning off the HDMI output on the Raspberry Pi saves around 10 mA. If your applications does not need the HDMI output, you might as well turn it off to optimize power consumption.
Below are the Linux commands to turn it off and on.



Turn OFF HDMI output

sudo /opt/vc/bin/tvservice -o

Turn ON HDMI output

sudo /opt/vc/bin/tvservice -p

Note: The Linux command is temporary. Once the Raspberry Pi rebooted, it will turn on back.

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