I do not have programming skills, but I have some knowledge using the command line of the shell. Is it possible to get access to the GPIO just from the shell ?
ELinux lists two options to directly access GPIO pins from the command line interface and other libraries exist:
sysfs, the virtual filesystem allows
rootto directly read from and write to GPIO pins by
catfrom various files in the
wiringPilibrary provides a cli command
gpioto be used by non-privileged users for direct access.
pigsutility, part of the
pigpiolibrary also offers comprehensive control of the GPIO pins from the command line (see pigpio for download of source, installation procedures and excellent application examples).