Intro-Arduino

Which function in Arduino programs is used to initialize variables and settings before the main loop starts?

• void loop()

• void begin()

• void init()

• void setup()

Which of the following steps are needed to print a message to the serial monitor in an Arduino program?

• Use Serial.println() to print the message.

• Initialize serial communication with Serial.begin()

• Ensure the baud rate matches between the program and serial monitor

• Print messages directly to the console without any code.

What role does the void loop() function play in an Arduino program?

• The void loop() function allows the Arduino to execute code continuously after setup.
• The void loop() function is used to define global variables.
• The void loop() function is only executed once during the program.
• The void loop() function initializes the Arduino hardware.

How do you configure pin 13 as an output in an Arduino sketch?

• pinMode(13, HIGH);
• digitalWrite(13, OUTPUT);
• setPinMode(13, OUTPUT);
• pinMode(13, OUTPUT);

How can you turn off the built in LED in 500 ms using digitalWrite?

• digitalWrite(13, LOW);

  delay(1000);

• digitalWrite(13, LOW);

  delay(250);

• digitalWrite(13, LOW);

  delay(500);

• digitalWrite(13, HIGH);

  delay(500);