The system allows controlling a robotic arm by an android device where the human voice or android app may specify continuous control signals to operate a robotic arm. The android device is used to send Bluetooth commands. These commands are then sent to the Bluetooth receiver which is in the receiver circuit. The Bluetooth receiver is interfaced to the 8051 microcontroller which is processed by it. The 8051 microcontroller controls the motor to move the robotic arm as per the commands received.Thus the system uses an android application or human voice to move the robotic arm in upward or downward direction, or can send commands like grip, open or close. Thus the robotic arm project can be used to pick any object, move it, and place it anywhere as per the need.

Keywords : Voice based, Android, Bluetooth, Microcontroller, Robotics.