Open AccessConstruction of dual-axis sun tracker controlled by Arduino
Author(s) -
C Alvarez-Herrera
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1723/1/012005
Subject(s) - arduino , signal (programming language) , solar tracker , dc motor , electrical engineering , power (physics) , computer science , physics , engineering , photovoltaic system , embedded system , quantum mechanics , programming language
In this work a dual-axis sun tracker was constructed using an Arduino to control two DC electric motors. The motors together with gears move a structure that tracks the sun. To achieve that purpose, an arrangement of four photoresistors was made to input the sun position into the Arduino in form of electric signal. The output signal from the Arduino is used in four relays with their respective optocouplers to transmit power into two DC electric motors to move the tracker. The Arduino uses an algorithm that processes the photoresistors signal and produce it an output signal that is transmitted to the relays. The sun tracker was applied in parabolic dish with good performance.