Solar Tracking System Circuit Diagram. The circuit and the mechanism explained in this article may be considered as the easiest and perfect dual axis solar tracker system. The pwm inputs of two servos are given from digital pins 9 and 10 of arduino.
Arduino Solar Tracker Solar Tracker Arduino Arduino Projects from www.pinterest.com
The heart of the above circuit is two voltage comparators made using lm358 dual op amp. We all know that when the intensity of light falling on a ldr increases its resistance decreases. Connecting 10k resisters as shown in the figure and also ground to breadboard.
Connecting 10k resisters as shown in the figure and also ground to breadboard.
Connect the two ldr to a0 a1 as shown in the figure and also a 5v from arduino to the breadboard. Using four ldr light dependent resistor as a sensor in detecting the light source arranged as illustrated. Four ldrs and four 100kω resistors are connected in a voltage divider fashion and the output is given to 4 analog input pins of arduino. The connection point of ldr1 and r1 is the output of the ldr1 which is connected to pin 3 of the lm358 ic.
