Arduino Code Concepts Quiz

What does the directive #include do?

• It tells the compiler to include a library.

• It creates a constant or macro.

• It declares a variable.

• It initializes communication with the PC.

What is the purpose of the #define directive?

• Creates a constant or macro.

• Declares a variable.

• Includes a library.

• Configures a pin.

What data type is used for discrete values like pin numbers?

• int

• float

• byte

• string

What does the int arrayName[] = {value1, value2, ...}; syntax do?

• Stores multiple values of the same type.

• Creates a constant.

• Declares a function.

• Configures a pin.

What is the purpose of the void return type in a function?

• Indicates the function does not return a value.

• Indicates the function returns an integer.

• Indicates the function returns a string.

• Indicates the function is a constant.

What does pinMode(pin, mode) do?

• Configures a pin as INPUT, OUTPUT, or INPUT_PULLUP.

• Reads external signals.

• Sends signals to devices.

• Creates a constant.

What does the if(condition) { code } statement do?

• Executes code if the condition is true.

• Declares a variable.

• Creates a constant.

• Configures a pin.

What is the purpose of the for loop?

• Repeats code a specific number of times.

• Executes code as long as a condition is true.

• Declares a variable.

• Creates a constant.

What does the map(value, fromLow, fromHigh, toLow, toHigh) function do?

• Scales a value from one range to another.

• Creates a constant.

• Declares a variable.

• Configures a pin.

What does delay(milliseconds) do?

• Pauses program execution for a specified time.

• Reads external signals.

• Sends signals to devices.

• Creates a constant.