User warning: The following module is missing from the file system: imagcache_actions. For information about how to fix this, see the documentation page. in _drupal_trigger_error_with_delayed_logging() (line 1143 of /home/papite77/domains/brickblog.eu/public_html/includes/bootstrap.inc).
I was thinking, for a long time, about GBC module using a switch to change the direction of the motor rotation. After many tests and making several prototypes, finally I can introduce a properly working contraption.