INNOVATION DAY

What is the main purpose of using an ultrasonic sensor in the home security system?

• Turn on the lights automatically

• Measure temperature

• Detect a stranger in front of the door

• Turn on the fan

What happens when the ultrasonic sensor detects an object at a close distance

• . It triggers an alarm or a signal

• Sends a text message

• Shuts down the system

• Restarts the Arduino

How does the ultrasonic sensor help in the parking system

• Play music

• Automatically open and close the gate when a car approaches

• Control car speed

• Count the number of cars in the city

If the distance between the car and the gate is less than the defined value, the system:

• Turns off the lights

• Blocks the car from entering

• Automatically opens the gate

• Displays an error message

What is the function of the LDR sensor in the smart city

• Measure sound

• Turn on the lights when it gets dark

• Measure humidity

• Activate the alarm

How does the LDR sensor react to daylight

• . Turns on the light

• Sends a message

• Automatically turns off the light

• Increases the brightness

. What is the purpose of using solar energy in smart homes(Generate clean energy to power devices)

• True
• False

What does wind energy depend on to generate electricity(Earth’s temperature)

• True
• False

What is the advantage of the hydraulic bridge

• Doesn’t require energy

• . Works only at night

• Controls traffic and ships

• Depends on the internet

Open Palm 🖐🏻

• Hello / Stop

• No / Fist

• Yes / Good

• Translated as "Up / One"