Then attach the bottom side of the V shape to the other end of small piece of cardboard in which you made a hole in first step. Now fix two small pieces of cardboard with each other in a V shape with help of glue or hot gun and place solar panel on it. We will insert the screw in it to fix it with the servo later on. To make the prototype, you will have to follow the below steps:įirst of all, take a small piece of cardboard and make a hole at one end. How to build a rotating solar panel using Arduino: Check the Demonstration Video at the end of this Article. The servo will try to move the solar panel in the position where both LDR’s will have the same resistance means where the same amount of light will fall on both the resistors and if the resistance of one of the LDR will change then it rotates towards lower resistance LDR. And if there is some amount of light falling on both the LDR, then the servo will not rotate. The servo will move the solar panel towards the LDR whose resistance will be low, mean towards the LDR on which light is falling, that way it will keep following the light. The two LDR’s are placed at the two sides of the solar panel and the Servo Motor is used to rotate the solar panel.
Check the various circuits based on LDR here. Its resistance decrease when the light falls on it and that’s why it is frequently used in Dark or Light Detector Circuit.
LDR (Light Dependent Resistor) also known as photo resistor is the light sensitive device. Before we go into detail, we will have to understand how the LDR’s work. In this project, LDR’s are working as light detectors.
How does a single axis solar tracker work?
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