The present work aims to present the operation mode, both theoretically and practically, of an automatic monitoring and control system of the water circuit in a system with thermosolar panels, as well as the main advantages that it constitutes as an automated system of this kind, both in industry and in the everyday life of each of us.

The design of an optical system sets up the knowledge of the limitations dictated by the losses and dispersion in the optical fiber (in direct connection with the wavelength used) for a point-to-point connection. Except for short links used in local area networks, attenuation losses play a significant role in system design. The paper aims to analyse a fiber connection in terms of the best communication distance using Octave and Packet Tracer.

The paper aims to analyse a fiber optic link by using fiber optics (FT1000EMT, FT800UMT, FT200UMT, FT1500UMT), transmitters (M9-A64-0300, VCSEL-1060-SM, TUVE-1060-T-TO) and receivers (SRP00294, LDPF XXXX), using Octave.

The development of measuring devices such as sensors and transducers appeared as a necessity imposed by technical progress and the need to control certain processes in real time. The paper proposes the analysis and implementation of an automated greenhouse where the “heart” of the circuit is the Atmega328P microcontroller integrated on an Arduino Nano development board.