Preliminary Exam - ITP 312L

Digital I/O works with how many states?

• One

• Two

• Three

• Unlimited

Which Arduino function is used to read digital input?

• digitalWrite()

• pinMode()

• digitalRead()

• analogRead()

The analogRead() function returns values between:

• 0-255

• 0-1

• 0-1023

• 0-500

Which device provides binary signals to Arduino?

• Potentiometer

• Push button

• Temperature sensor

• Resistor

What does PWM stand for?

• Pulse Width Modulation

• Power Watt Measurement

• Pin Write Mode

• Pulse Wave Method

An LED connected to pin 9 with analogWrite(9, 255) will:

• Be off

• Blink slowly

• Show 50% brightness

• Be fully bright

Which part of Arduino Uno handles USB communication?

• ATmega328

• Reset Button

• ATmega16U2

• Power Connector

The loop() function in Arduino code:

• Runs once

• Runs repeatedly

• Uploads code

• Compiles code

Example of a digital output device is:

• Potentiometer

• Buzzer

• Thermistor

• LDR

Tinkercad allows users to:

• Compile Arduino firmware only

• Create real circuits only

• Drag-and-drop components and simulate

• Program in Python only