echo "7" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio7/direction
echo "8" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio8/direction
echo "25" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio25/direction
echo "24" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio24/direction
echo "23" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio23/direction
echo "18" > /sys/class/gpio/export
echo "out" > /sys/class/gpio/gpio18/direction