Abstract – This paper explains the whole process of making
a system for remote control of a robot arm with five degrees
of freedom (DOF). For this purpose a hardware structure
was fully designed and implemented. The hardware
structure is based on microcontroller PIC16F877A and
surrounding architecture that controls movement of
different axis of the arm. The arm has no sensors, so the
visual information from the camera was used as feedback.
Two communications were used to operate robot arm. The
first one is realized by serial RS-232 protocol between PC
and Microcontroller, and this communication is used to
operate the arm. The second communication uses TCP/IP
protocol for remote control. The TCP/IP protocol provides
communication between server and client computers and
sends information of position of robot arm. For interaction
with user appropriate GUI is implemented in MATLAB.
The main objective of this paper was to obtain fully and
precise control of every degree of freedom.