roomba powersave

# TURN OFF HDMI if not in use
# Get the current video output type and strip away the unimportant bits
video="$(tvservice -s | sed "s/^.*\[\([^ ]*\) .*$/\1/" )"
 
if [ "$video" != "HDMI" ]; then
        printf "HDMI not detected. Turning off.\n"
        tvservice -off > /dev/null
else
        printf "HDMI detected.\n"
fi

# TURN OFF LEDS
# Set the Pi Zero ACT LED trigger to 'none'
echo none | sudo tee /sys/class/leds/led0/trigger
 
# Turn off the Pi Zero ACT LED
echo 1 | sudo tee /sys/class/leds/led0/brightness