#!/bin/sh -e # Initialise GPIO 4 and 12 to output to deactivate the steppers if [ ! -e /sys/class/gpio/gpio4 ]; then echo "4" > /sys/class/gpio/export fi if [ ! -e /sys/class/gpio/gpio12 ]; then echo "12" > /sys/class/gpio/export fi echo "out" > /sys/class/gpio/gpio4/direction echo "out" > /sys/class/gpio/gpio12/direction echo "1" > /sys/class/gpio/gpio4/value echo "1" > /sys/class/gpio/gpio12/value