Line Following Robot (IR Sensor)

__ is an electronic device, that emits light to sense some object in the surroundings.

Which of the IR sensors is used for the line following robot?

• Passive Infrared Sensor

• Active Infrared Sensor

Which one is an IR transmitter?

• LED

• photodiode

Which one is an IR receiver?

• LED

• photodiode

Which surface emits radiant heat?

• white

• black

What happens when the left IR sensor is on a black line?

• turns right

• turns left

What will happen if both the left and right IR sensors are on a black line?

• robot moves forward

• robot stops

• robot turns left

• robot turns right

What will happen if both the left and right IR sensors are not on a black line?

• robot stops

• robot moves forward

• robot turns left

• robot turns right

Which one will not glow when on a black line?

• LED

• photodiode