This paper presents a control system of the DC-motor used to drive a conveyor belt made with the Arduino Uno development board. For powering the DC motor from a continuous voltage source, an H-bridge bridge was used to reverse the motor rotation direction. The Arduino Uno development board generates the PWM command signal of the H-bridge bridge transistors through a program saved in the flash memory of the Atmega 328 microcontroller. For the implementation of the program, an experimental stand was made in the Electrical Machines Laboratory of the "Vasile Alecsandri" University of Bacau. The experimental stand is used for determining operating characteristics of the conveyor belt under laboratory conditions. The control system is flexible and allows the optimization by attempts of the operating regimes of the conveyor belts. The control system of the DC motor with the Arduino Uno development board ensures the performances settled in the design phase.
