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How many pins are present in the LDR Sensor?

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How many pins are present in the LDR Sensor?

(a) 1

(b) 4

(c) 2

(d) 5

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Question is from LDR Sensor topic in division Interfacing of Sensors, Actuators, and Other Modules of Arduino

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Best answer
Right option is (c) 2

Easy explanation: The LDR is a passive sensor, which means it does not require any external voltage supply for it to run. So it only has two terminals which are to be connected in parallel for maximum performance and so that if the LDR becomes defunct, it does not affect the working of the entire circuit.

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