As a part of a project with AREVA, an inspection robot for 50-94 mm diameter range pipelines have been developed. By using leg mechanisms, DC motors, spindle drive, and control boards, the robot accomplishes the locomotion of a caterpillar. Two algorithms can be classified for the control of this robot via Displacement control algorithm and Force control algorithm. The former deals with the estimation of the position of a robot inside a known environment and it requires sensors for identifying position as well as for initiation procedures. In the case of force control, the algorithm is highly suitable for a robot that moves inside an unknown or closed environment. Using a BeagleBone (BB) black board, the force control algorithm is developed for the inspection robot under study. As the robot works inside pipelines of unknown diameters, the reconfigurable pins of BB black are employed to apply a voltage in order to achieve the desired clamping force for having contact with pipeline walls. By setting threshold limits, the voltage and current supply to the motors can be cut-off at the end of clamping or retraction operations. With the help of ADC, the output voltage can be displayed to the user on a computer. For smooth functioning of the robot, the parameters of the motor such as the maximum velocity, direction of rotation and nominal current are calibrated prior to the start of experiments. The output voltage and currents of the motors are generated and plotted for a locomotion cycle of the robot inside a 74 mm diameter straight pipeline