I kinda changed the concept now... after some research... the concept is that i basically have a grounding rod and a light intensity circuit... so both this sensor device will...

Not exactly like that.... its powered by a 12v supply... its based on the assumption that when the light intensity increase, the ground resistance increases too.... so the intelligent system...

Im currently doing my final year project which is the intelligent grounding system... But im not sure abt certain parts of my project, and i cant ask my advisor too...