Automatically accept incoming bluetooth connections

auto-bt.sh

#!/usr/bin/env bash

amixer -c 0 cset numid=3
coproc stdbuf -oL bluetoothctl
sleep 7
sudo -u pi pulseaudio --start

echo -e "pairable on\n" >& ${COPROC[1]}
echo -e "discoverable on\n" >& ${COPROC[1]}
echo -e "agent NoInputNoOutput\n" >& ${COPROC[1]}
echo -e "default-agent" >& ${COPROC[1]}

while true
do
	read -ru ${COPROC[0]} line
	echo $line
	if [[ "$line" == *"Paired: yes"* ]]
	then
		mac=`echo $line | awk '{print $(NF-2)}'`
		echo $mac
		echo -e "trust $mac" >& ${COPROC[1]}
		echo -e "connect $mac" >& ${COPROC[1]}
	elif [[ "$line" == *"Discoverable: no"* ]]
	then
		echo -e "discoverable on\n" >& ${COPROC[1]}
	fi
done