12 . Light Following Robot Car

What sensor is commonly used for a light-following robot car?

• Ultrasonic sensor
• Temperature sensor
• Accelerometer
• Light-dependent resistor (LDR)

How does the light-following robot car determine which direction to move?

• By detecting sound

• By following a pre-programmed path

• By using GPS coordinates

• By detecting the strongest light source

What is the role of the analogRead() function in a light-following robot car?

• To write data to the motor shield

• To read values from the light sensors

• To initialize the sensors

• To control motor speed

How many ldrs we need for Light following Robot car?

• 2

• 1

• 5

• 3

How many motors we need in this project?

• 1

• 3

• 2

• 4

How can you determine if the robot car needs to stop moving?

• If the car reaches a pre-set destination

• If both light sensors detect the same amount of light

• If there is no light detected by the sensors

• If the car reaches a pre-set destination

What would be the typical result if the left light sensor detects a stronger light than the right sensor?

• • The car moves backward

• • The car turns left

• • The car turns light

• The car stops

To make the robot car turn left towards the light, what should happen to the motors?

• The right motor should move forward, and the left motor should stop or move backward

• Both motors should stop

• The right motor should move backward, and the left motor should stop or move forward

• Both motors should move backward

What would be the typical result if the right light sensor detects a stronger light than the left sensor?

• The car turns right

• The car turns left

• The car moves backward

• The car moves forward

Which function is used to read the values from the LDR sensors ?

• digitalread()

• analogRead()

• analogread()

• analogwrite()