Electrohydraulic robotic manipulator (EHROM), intended for manipulation of objects weighing up to 200 kg, was developed in the Laboratory of Automation and Robotics. The manipulator has three degrees of freedom, rotation of the base arm, rotation of arm and translation of the arm console. Gripper is placed at the end of the mechanical structure. All degrees of freedom as well as the gripper are hydraulicaly actuated. The manipulator can be controlled using levers on the proportional hydraulic valve or using a joystick. The goal of this thesis is to achieve wireless control of the proportional valve group via Bluetooth connection, using Arduino microcontroler and self-made controlling interface. In the first part of the paper original components consisting mechanical, drive, sensoric and controlling systems will be described. Basic technical specifications will be presented as well as expressions for determining values of variables describing the current position of the robot in dependence of the voltage levels of signals read from sensors. Afterwards, the design process of the control system will be given which includes development of mobile phone app, controller interface, programming of Arduino microcontroler and the process of the assembly of components. Finally, guidelines for further development of the control system with the intention of achieving automated control will be presented.