announcement-box/toolkit/emergency-light

#!/bin/bash

PIN_ELIGHT=7

# init
gpio mode $PIN_ELIGHT output

# command
if [[ "$1" == "on" ]]; then
	gpio write $PIN_ELIGHT 1
elif [[ "$1" == "off" ]]; then
	gpio write $PIN_ELIGHT 0
elif [[ "$1" == "read" ]]; then
	gpio read $PIN_ELIGHT
else
	gpio toggle $PIN_ELIGHT
fi