#! /bin/sh
LEDFILE="/sys/devices/platform/leds/leds/ubnt:blue:dome/brightness"
while true ; do
	LEDSTATE=0
	sleep 5
	for dev in wlan1 wlan1-1 wlan0 ; do      
		Z=$(iw dev ${dev} station dump |grep "Station" | wc -l)
		if [ "$Z" -ge "1" ]; then
			LEDSTATE=1
		fi 
	done
	echo $LEDSTATE > $LEDFILE
done