Arduino Programming Quiz

What are the two main parts of an Arduino program?

• A) setup and main

• B) loop and main

• C) setup and loop

• D) start and end

Which part of the Arduino program runs only once?

• A) loop

• B) setup

• C) main

• D) end

Which part of the Arduino program runs repeatedly?

• A) setup

• B) loop

• C) main

• D) end

What is the purpose of defining pins in an Arduino program?

• A) To give power to the circuit.

• B) To identify which pins are used for input and output.

• C) To store data.

• D) To generate code.

How do you declare a pin number as an integer variable in Arduino?

• A) int ledPin = 13;

• B) pin ledPin = 13;

• C) define ledPin 13;

• D) integer ledPin = 13;

What is the purpose of a pushbutton in an Arduino circuit?

• A) To control the flow of electricity.

• B) To store energy.

• C) To act as a switch to turn on and off components like LEDs.

• D) To measure temperature.

Which pin mode is used for an LED in the Arduino setup function?

• A) pinMode(ledPin, INPUT);

• B) pinMode(ledPin, OUTPUT);

• C) pinMode(ledPin, ANALOG);

• D) pinMode(ledPin, PWM);

Why is it important to declare variables for pin numbers in an Arduino program?

• A) To make the code shorter.

• B) To make the code more readable and easier to update.

• C) To use more memory.

• D) To slow down the execution of the program.

In an Arduino pushbutton project, how can you determine the state of the pushbutton (whether it is pressed or not)?

• By checking the resistance of the button.

• By measuring the voltage at the LED.

• By reading the digital input pin connected to the pushbutton.

• By using the analogRead() function on the pushbutton pin.

What command is used to read the state of a pushbutton in Arduino?

• • digitalWrite(buttonPin);

• • analogRead(buttonPin);

• • digitalRead(buttonPin);

• • digitalRead(buttonPin);