The robotic arm with three degrees of freedom represents a key element in the wider context of the industrial automation, which is the main theme of this bachelor's thesis. Robotic arms play a significant role in the modern industrial systems, particularly in the manufacturing environments. This paper focuses on a specific example of a robotic arm controlled by the potentiometers with three servo motors to simulate operations within a manufacturing process. By manipulating the potentiometers, adjusted values are transmitted to the servo motors, resulting in the corresponding movements. The main feature of this specific robotic arm is the ability to store positions of the servo motors by pressing the first button. Once up to five different positions are stored, the second button is used to initiate a simulation of the robotic arm's operation. Furthermore, there is flexibility in terms of storing a smaller number of positions, allowing the remaining positions to be treated as a resting states. Additionally, the restart button on the Arduino board serves to reset the entire system and return it to its initial state.