An Active Solar Tracking System

Solar Tracker Projects

In the spirit of fine home-brewing, this tracker uses cheap ubiquitous parts - a windshield wiper motor and a 555 circuit - as the guts for an efficient machine which keeps panels aimed at the sun. How This Tracker Works Driving a threaded shaft attached to the tracker's underside, the windshield wiper motor is powered by a circuit controlled by two phototransistors which are turned on and off by a shading device. The phototransistors and shading device are mounted on the face of the tracker...