Arduino Basics: Inputs and Outputs Quiz

What is an Arduino?

• A microcontroller development board

• A type of motor

• A type of sensor

• A computer software

Which of the following is an example of a digital input device?

• LED

• Potentiometer

• Push button

• Buzzer

What function is used to set up a pin as an input or output in Arduino code?

• pinSetup()

• pinMode()

• setupPin()

• setPin()

Which command is used to send a HIGH or LOW signal to a digital output pin?

• pinSignal()

• setPin()

• digitalWrite()

• analogWrite()

What is the voltage range for digital signals on most Arduino boards?

• 0V to 3.3V

• 0V to 12V

• 0V to 5V

• 1V to 10V

An LED connected to an Arduino pin is an example of a digital output.

Analog pins on the Arduino are used only for output.

The function delay() pauses the program for a specified time in seconds.

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

Name two examples of sensors that can be used as inputs in an Arduino project.