Jun 25, 2018 · Circuit Diagram The circuit design of solar tracker is simple but setting up the system must be done carefully. 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 PWM inputs of two servos are given from digital pins 9 and 10 of Arduino.
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i have a arduino and or a pwm control board! i need to know how to take a pot and only move the pot 20 degrees and go from 0 to 100% in 1 direction only. i am green on arduinos and pwm i know they take 0 to 5 volts! but i only want the pot to turn 20 degrees and be adjustable to set points start...