Internet Of Things

Front

What does an ultrasonic sensor emit to detect objects?

Back

Sound waves

Front

Which phenomenon allows an ultrasonic sensor to detect an approaching vehicle?

Back

Reflection of sound waves

Front

In a smart street lighting system, what ensures that the lights turn off in the morning? Options: Motion sensor, Temperature sensor, Light-dependent resistor (LDR), Humidity sensor

Back

Light-dependent resistor (LDR)

Front

Why is an ultrasonic sensor a good choice for smart street lighting?

Back

It works in low visibility conditions

Front

What is a key limitation of ultrasonic sensors in street lighting automation?

Back

They cannot detect stationary objects

Front

What is the main function of the Arduino UNO in remote controlled car project?

Back

It acts as the brain, processing commands and controlling the motor driver.

Front

Why do we use the L298N Motor Driver in the robot?

Back

It controls the BO motors because Arduino cannot drive motors directly.

Front

What is the role of the HC-05 Bluetooth module?

Back

It allows wireless communication between the mobile app and Arduino.

Front

What is the purpose of the toggle switch in remote controlled car project?

Back

To connect and disconnect the battery power supply.

Front

Which app is used to invent the application of remote controlled car project?

Back

MIT App Inventor