Design of cell phone operated robot using DTMF for object research

In recent years, there are development of robotics and communication on a large scale. Here we are using both the technologies together. Our robot is controlled by cell phone by DTMF technology through this we can make robot move in desire direction by touchpad. This robot can be make more useful by adding applications to it here we are using some sensor which can detect object and we are adding a robotic arm to the robot which can pick & place object but the decision to pick object or not will taken by operator by giving reply of message sent by GSM module and it will also give information about the object to operator about the metallic property of the object which is tested by metal detector coil fixed in arm. This is how we can use this robot for research purpose in different field by further manipulation in programming it can use accordingly.