Arduino Programming Basics Quiz

What is the function of the microcontroller on the Arduino Uno R3 board?

• Executes program instructions and controls input/output operations

• Serves as a power source for the board

• Provides internet connectivity

• Displays graphics on the LCD screen

Name at least three digital input/output pins on the Arduino Uno R3 board.

• 3, 5, 13

• 4, 6, 8

• 1, 2, 3

• 7, 9, 11

Explain the function of the USB port on the Arduino Uno R3 board.

• For charging the board

• For uploading code and serial communication

• For playing audio files

• For connecting to WiFi

What symbol is used to indicate a comment in Arduino programming?

• //

• ##

• /*

• !!

How do you declare a variable in Arduino programming?

• variable_name data_type;

• declare variable_name as data_type;

• int variable_name;

• data_type variable_name;

What is the purpose of the pinMode() function in Arduino programming?

• To display text on the LCD screen

• To configure a specific pin as an input or output

• To play a sound

• To change the color of the LED

Explain the difference between analogRead() and digitalRead() functions in Arduino programming.

• analogRead() reads digital state and digitalRead() reads analog voltage.

• analogRead() reads analog voltage and returns a value between 0 and 1023, while digitalRead() reads digital state (HIGH or LOW) of a pin.

• analogRead() and digitalRead() functions are used interchangeably in Arduino programming.

• analogRead() reads digital state and returns a value between 0 and 1023, while digitalRead() reads analog voltage.

How do you write a digital output to a specific pin in Arduino programming?

• writeDigital(pin, value)

• setPinOutput(pin, value)

• outputDigital(pin, value)

• digitalWrite(pin, value)

What is the function of the digitalWrite() function in Arduino programming?

• Plays a sound

• Sets the value of a digital pin

• Changes the background color

• Sends an email

Explain the purpose of the analogWrite() function in Arduino programming.

• To print a message to the serial monitor

• To read a digital input from a sensor

• To generate a PWM signal on a specified pin

• To control the brightness of an LED using a digital signal