10 . Automatic Street Light

What does LDR stand for?

• Laser Detection Radar
• Light Diminishing Resistor
• Light Dependent Resistor
• Luminous Detection Receiver

What is the primary function of an LDR in an automatic street light project?

• To detect light intensity

• Measure temperature
• Control the brightness of the light
• Detect motion

In an automatic street light project, what happens to the street light when the LDR detects darkness?

• The street light turns off.
• The street light blinks.
• The street light turns on.
• The street light changes color.

Which Arduino function is used to read the value from an analog pin connected to the LDR?

• digitalRead()
• analogRead()
• analogWrite()
• readAnalog()

What is the another name of LDR sensor ?

• Resistor

• Photoresistor

• capacitor

• detector

In an automatic street light project, what happens to the street light during the daytime when the LDR detects sufficient light?

• The light remains off

• The light blinks

• The light turns on
  

• The light dims

Identify the LDR sensor Module

• 
• 
• 
• 

Which statement correctly reads the analog value from pin A0 connected to an LDR?

• int sensorValue = analogRead(A1);
• int sensorValue = analogRead(A0);
• int value = analogRead(A1);
• int sensorValue = digitalRead(A0);

Is it possible to read the value from LDR sensor by using "Digital pins"

• yes

• no

• none

• can't define

What is the main advantage of using an automatic street light system with an LDR?

• It helps in controlling traffic lights.

• It provides better aesthetics to the street.

• It saves energy by only turning on when needed.

• It reduces the need for maintenance.