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How many pins are present in the IR Sensor?

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How many pins are present in the IR Sensor?

(a) 1

(b) 3

(c) 2

(d) 4

The question was asked in an interview for internship.

I need to ask this question from IR Sensor topic in division Interfacing of Sensors, Actuators, and Other Modules of Arduino

1 Answer

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Best answer
Right choice is (b) 3

To elaborate: The pins that are present on the IR Sensor include, the Ground, the Vcc and the Signal pins. The role of the Ground and the Vcc is to power the sensor. The Vcc accepts a maximum voltage of approximately 5V. The signal pin is present to convey the data from the sensor to the microcontroller or the microprocessor.

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