The Aim Of This Project Is To Develop Under Water Communication System Using The Zigbee Protocol Stack. A Robot Can Be Defined As A Programmable, Self-controlled Device Consisting Of Electronic, Electrical, Or Mechanical Units. An Industrial Robot Is Officially Defined By As An Automatically Controlled, Reprogrammable, Multipurpose, Manipulator, Programmable In Three Or More Axes. Robots Are Especially Desirable For Certain Work Functions Because, Unlike Humans, They Never Get Tired. They Can Endure Physical Conditions That Are Uncomfortable Or Even Dangerous; They Can Operate In Airless Conditions