#!/bin/sh if [[ "$1" == "on_high" ]]; then echo -ne "\xaa\x55\x43\x05\x16\xff\x07\x02\x63" > /dev/ttyUSB0 elif [[ "$1" == "on_low" ]]; then echo -ne "\xaa\x55\x43\x05\x16\x33\x07\x01\x97" > /dev/ttyUSB0 elif [[ "$1" == "off" ]]; then echo -ne "\xaa\x55\x43\x05\x16\x00\x07\x01\x64" > /dev/ttyUSB0 else echo "usage: spotlight_ctl on_high" echo "usage: spotlight_ctl on_low" echo "usage: spotlight_ctl off" fi