In this work, we consider the measurement of the solar element, which consists in adjusting their angle of inclination relative to the sun. it uses the VAC to determine the position of the sun; engines that rotate the solar element, and the Arduino platform, which acts as the main control element. the proposed design of the solar tracker significantly reduces the element base and its complexity in the assembly. it is also very important that with the help of VAC it is possible to clearly observe the degradation of the solar cell over a long period of operation.