The Single Axis Solar Tracker follows the sun across the sky to collect as much energy as possible. It features a main solar cell and volt meter to gather data, and two smaller solar cells to power the motor.
The Single Axis Tracker is controlled by some simple physics. A single geared motor turns the main panel towards the sun. Two small solar panels are attached to a motor, in opposite polarity. When Panel A is producing power, the motor turns clockwise; when Panel B is producing power, the motor turns counterclockwise. When both panels produce equal amounts of power, they cancel each other out, and the motor stops turning.
Is it hard to build? You be the judge! Check out our step by step instructions or video build.