Arduino Parking Gate Project Review

A set of 25 fill-in-the-blank practice flashcards reviewing core Arduino concepts, programming functions, circuit connections, and troubleshooting for the automatic parking gate project.

The main job of the Arduino microcontroller is to __________.

read inputs and control outputs

Between an LED, a servo motor, a buzzer, and an ultrasonic sensor, the component that functions as an input is the __________.

ultrasonic sensor

Between an HC-SR04 sensor, push button, light sensor, and servo motor, the component that acts as an output is the __________.

servo motor

In Arduino circuits and pin labels, GND stands for __________.

Ground

The Arduino function that runs only once when the program starts is __________.

setup()

The Arduino function that repeats continuously while the board is running is __________.

loop()

The code instruction digitalWrite(redLED, HIGH); causes the red LED to __________.

turn on

The command delay(1000); instructs the Arduino to wait for __________.

1000 milliseconds

On an HC-SR04 ultrasonic sensor, the pin that sends the ultrasonic pulse is __________.

TRIG

On an HC-SR04 ultrasonic sensor, the pin that receives the returning pulse is __________.

ECHO

In the parking-gate project, the Arduino pin used to control the servo signal is __________.

D9

In the parking-gate project, when a car is detected within 15 cm, the gate should __________.

open

The instruction gateServo.write(90); causes the servo motor to __________.

move to 90 degrees

The servo, sensor, and Arduino must share a common ground connection because they need the same __________.

electrical reference

Before changing or moving any wires in your circuit, you should always __________.

unplug the Arduino

Under the parking gate code logic, when the distance measured is 10 cm, the gate moves to __________.

90 degrees

Under the parking gate code logic, when the distance measured is 30 cm, the gate moves to __________.

0 degrees

The parking gate program checks that distanceCm > 0 in order to __________.

ignore invalid distance readings

In the automatic parking gate system, the process step occurs when the Arduino compares the distance measurement with __________.

15 cm

In the parking-gate project wiring, the HC-SR04 TRIG pin connects to pin __________ on the Arduino.

D7

If the servo motor rotates in the wrong direction, you can correct it in code by switching the values assigned to __________.

openAngle and closedAngle

If the HC-SR04 sensor reading consistently outputs -1, two signal wires you should inspect are the __________ wires.

TRIG and ECHO

If the Arduino board resets whenever the servo motor attempts to move, the servo may be drawing __________.

too much current

While an input device sends information to the Arduino, an output device __________.

performs an action

An example of an output component that can be added as an improvement to the parking gate is a warning __________.

buzzer