Abstract:
This paper describes a robotic arm with 5 degrees-of-freedom (DOF) which is controlled by human voice
and has been developed in the Mechatronics Laboratory, CUET. This robotic arm is interfaced with a PC by
serial communication (RS-232). Users’ voice command is captured by a microphone, and this voice is
processed by software which is made by Microsoft visual studio. Then the specific signal (obtained by signal
processing) is sent to control unit. The main control unit that is used in the robotic arm is a microcontroller
whose model no. is PIC18f452. Then Control unit drives the actuators, (Hitec HS-422, HS-81) according to
the signal or signals to give required motion of the robotic arm. At present the robotic arm can perform a set
action like pick & pull, gripping, holding & releasing, and some other extra function like dance-like
movement, and can turn according to the voice commands.
