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Please send me uC based solar tracker all document..Thanks..km,
Two LDR's (light dependent resistors) in series as a voltage divider, mounted on a hobby servo. A small panel seperates the LDR's. Feed the junction of the voltage divider to the ADC input of a uC. Drive the servo with the output of the uC. Program the uC to move the servo to point the LDR's at the sun to maintain equal light on both, so the small panel doesn't shadow one LDR. Use PWM, pulse period, DAC, binary or LED/LCD out from the uC to indicate the sun's position...or mount the LDR's directly on a motorized PV array and use the "error" output to move the array...if that's the end product.
Google solar or sun tracker...lots of other approaches.
Ken
Can anybody guide me how to design a microcontroller and sensor based Solar Tracker? :idea: