16 . Distance Range Finder

Which type of sensor is commonly used for measuring distance in an Arduino project?

• Ultrasonic sensor
• Infrared sensor
• Pressure sensor
• Temperature sensor

What are the typical pin names used to connect an ultrasonic sensor to an Arduino?

• SDA and SCL

• TRIG and ECHO

• DATA and CLK

• VCC and GND

Which function is used to measure the time taken for the echo to return to the ultrasonic sensor?

• pulseIn()
• millis()
• digitalWrite()
• analogRead()

What is the typical formula used to calculate distance using an ultrasonic sensor?

• Distance = (Speed of Light × Time) / 2

• Distance = (Speed of Sound × Time)

• Distance = (Speed of Light × Time)

• Distance = (Speed of Sound × Time) / 2

How is the duration of the pulse measured in an ultrasonic sensor calculated in Arduino code?

• duration = pulseIn(echoPin, HIGH);

• duration = millis();

• duration = digitalRead(echoPin)

• duration = analogRead(echoPin);

What is the speed of sound used in the calculation of distance in air (in cm/us)?

• 3.31

• 0.034

• 0.21

• 2.43

What is the primary function of the TRIG pin in an ultrasonic sensor setup with Arduino?

• To receive the reflected ultrasonic signal

• To send the initial ultrasonic pulse

• To provide power to the sensor

• To ground the sensor

What is the main purpose of the ECHO pin in an ultrasonic sensor setup?

• To provide power

• To send the initial ultrasonic pulse

• To provide power to the sensoR

• To receive the reflected ultrasonic signal and measure the time duration

How to give delay in this project?

• delay()

• delayMilliseconds()

• delayMicroseconds()

• wait()

Identify the Ultrasonic Sensor

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