Arduino Quiz #11: Functions

What is the main advantage of using functions in an Arduino sketch?

• They make the code run faster.

• They help organize and modularize the code.

• They increase the memory usage.

• They make the code harder to read.

Which of the following is a required function in an Arduino sketch?

• begin()

• initialize()

• setup()

• main()

What does the 'myMultiplyFunction' do in the example provided?

• Adds two numbers

• Subtracts two numbers

• Multiplies two numbers

• Divides two numbers

Where should a custom function be declared in an Arduino sketch?

• Inside the setup() function

• Inside the main() function

• Inside the loop() function

• Outside any other function

What is the purpose of the 'ReadSens_and_Condition' function?

• To initialize a sensor

• To write data to a sensor

• To read a sensor, average the readings, scale, and invert the result

• To read a sensor and return the raw value

How many times does the 'ReadSens_and_Condition' function read the sensor?

• Five times

• Four times

• Six times

• Three times

What is the result of the 'myMultiplyFunction' when called with parameters 2 and 3?

• 8

• 5

• 6

• 7

What does the 'analogRead(0)' function do in the 'ReadSens_and_Condition' function?

• Reads a digital pin

• Writes to a digital pin

• Writes to an analog pin

• Reads an analog pin

What is the purpose of the 'Serial.begin(9600)' line in the setup() function?

• To initialize the digital pins

• To reset the Arduino

• To start the serial communication at 9600 baud rate

• To stop the serial communication

What does the 'delay(500)' function do in the loop() function?

• Pauses the program for 500 microseconds

• Pauses the program for 500 milliseconds

• Pauses the program for 500 seconds

• Pauses the program indefinitely