Arduino C/C++ Program Functions

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Questions and Answers

What is the purpose of the setup() function in Arduino?

To format the code freely using semicolons

To execute repeatedly in the main program

To control the board until it is powered off or reset

To initialize variables and pin modes once at startup (correct)

What is the purpose of the loop() function in Arduino?

To execute once when a sketch starts after power-up or reset

To control the board until it is powered off or reset (correct)

To format the code freely using semicolons

To initialize variables and pin modes once at startup

What is the purpose of the semicolon (;) in Arduino code?

To indicate the end of a line of code (correct)

To set a specific pin to be an input or output

To mark blocks of code

To write comments in the code

What is the purpose of curly braces ({} ) in Arduino code?

To mark blocks of code Signup and view all the answers

What is the purpose of comments in Arduino code?

To remind yourself or others of what a piece of code does Signup and view all the answers

What is the purpose of the HIGH and LOW constants in Arduino?

To turn on or off an Arduino pin Signup and view all the answers

What is the purpose of the INPUT and OUTPUT constants in Arduino?

To set a specific pin to be an input or output Signup and view all the answers

What is the purpose of the true and false constants in Arduino?

To indicate the truth or false hood of a condition or expression Signup and view all the answers

What is the primary purpose of specifying the data type of a variable in Arduino?

To ensure the correct size of the value to be stored Signup and view all the answers

What is the role of the 'if...else' statement in Arduino programming?

To make decisions in a program based on an expression Signup and view all the answers

What is the function of the 'for' loop in Arduino?

To repeat a block of code a specified number of times Signup and view all the answers

What is the purpose of the 'switch...case' statement in Arduino?

To take a variety of directions depending on the value of a variable Signup and view all the answers

What is the data type that can hold values from –128 to 127?

Char Signup and view all the answers

What is the purpose of using the 'digitalWrite' function in Arduino?

To write digital output Signup and view all the answers

What is the function of the 'Serial.print' function in Arduino?

To print a message on the serial monitor Signup and view all the answers

What is the purpose of declaring a variable in Arduino?

To store a value that can be changed Signup and view all the answers

What is the primary purpose of the Arduino IDE?

To create a sketch that tells the Arduino board what to do Signup and view all the answers

What is the file extension of Arduino sketches saved on a development computer?

.ino Signup and view all the answers

What is the benefit of the Arduino IDE being open-source and extensible?

It can be extended through C++ libraries Signup and view all the answers

What is the primary advantage of the Arduino IDE's cross-platform capability?

It can be used on Windows, Macintosh OSX, and Linux operating systems Signup and view all the answers

What is the purpose of uploading a sketch to the Arduino board?

To execute the sketch on the board Signup and view all the answers

What is the relationship between the Arduino IDE and the Processing programming environment?

The Arduino IDE is based on the Processing environment Signup and view all the answers

What happens to the Arduino board after uploading a sketch?

It waits a couple of seconds before executing the sketch Signup and view all the answers

What is the primary advantage of the Arduino IDE's simple and clear programming environment?

It is easy to use for beginners and flexible for advanced users Signup and view all the answers

Study Notes