
22.Password Door Opening System
Authored by Robotic Schools
Special Education
6th - 8th Grade

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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many pins does a typical keypad module have?
3
4
5
6
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which library is typically used to control a servo motor in an Arduino password door control system?
LiquidCrystal
Keypad
Servo
Wire
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which component of the password door system is responsible for verifying the password entered by the user?
Keypad
Arduino
Motor
LCD screen
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the function of a keypad in a password door system using Arduino?
To generate random passwords
o display the password entered by the user
To allow the user to enter the password
To open the door
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many rows and columns does the keypad contains?
2,2
3,4
4,6
4,4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following function will helps you to rotate the servo motor?
servo.attach()
servo.begin()
servo.init()
servo.write()
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is an array?
collection of all integer data
collection of similar type of data items
similar to variable
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