Configurare GPIO

cd /sys/class/gpio
echo 17 > export
echo out > gpio17/direction
cat gpio17/value
0
echo 1 > gpio17/value

Apoi se modifică în /etc/rc.local:

################
#GPIO SCRIPT #
#TO BE INSERTED#
#ON START-UP #
################
# GPIO 7 as PTT to TxLocal
echo 17 > /sys/class/gpio/export
echo out > /sys/class/gpio/gpio17/direction
sudo chmod 777 /sys/class/gpio/gpio17/value

# GPIO 10 as Squelch to RxLocal
echo 27 > /sys/class/gpio/export
echo in > /sys/class/gpio/gpio27/direction
sudo chmod 777 /sys/class/gpio/gpio27/value