EDITOR=/bin/vi visudo

#/bin/bash
# Script to execute a command when going too far and one when being near enough from the other adapter
# When going too far
cmd1="rhythmbox-client --pause"
# When going too near                                                            
cmd2="rhythmbox-client --play" 
# The other endpoint
badr="00:19:1D:AB:98:23"
# Threshold level
lvl="-4"
# On startup, if the device is close enough, don't execute anything
on=1                                                                            
smooth=0

while /bin/true                                                                 
do
                l=`hcitool rssi ${badr} | tail -1 | cut -f 2 -d':'`
#                echo "Power=$l"                                                 
                if [ "$l" -le $lvl ] && [ $on == 1 ]
                then                                                            
			if [ $smooth == 2 ]
	                then
        	                echo "Too far"
                	        ${cmd1}
                        	on=0
				smooth=0
			else
				echo "Are we too far?"
				let smooth=smooth+1
			fi
                elif [ "$l" -gt $lvl ]
                then
			if [ $on == 0 ]
			then
	                        echo "Near enough"
        	                ${cmd2}
                	        on=1
			else
				smooth=0
			fi
                fi                                                              
                sleep 3                                                         
done

#!/bin/sh
$BTADDR=<address>
while true; do
#(device near state - add commands)
    while sudo /usr/bin/l2ping -t 1 -c 1 $BTADDR >/dev/null 2>/dev/null; do
        sleep 15
    done
#(device away state - add commands)
   until sudo /usr/bin/l2ping -t 1 -c 1 $BTADDR >/dev/null 2>/dev/null; do
        sleep 3
    done
done