Arduino

Question 1

common component used to control electronic devices. They are usually used as switches to connect or disconnect circuits.

Answer 1

Buttons

Question 2

.

Answer 2

Potentiometer

Question 3

.

Answer 3

I2C LCD1602

Question 4

has a built-in oscillating source, so it will make sounds when electrified.

Answer 4

active buzzer

Question 5

will not tweet if DC signals are used; instead, you need to use square waves whose frequency is between 2K and 5K to drive it.

Answer 5

passive buzzer

Question 6

ball one with a metal ball inside. It is used to
detect small angle of inclination.

Answer 6

Tilt Switch

Question 7

used for communication between the Uno board and a computer or other devices. It is a built-in
software in the Arduino environment and you can click the button on the upper right corner to open it.

Answer 7

Serial Monitor

Question 8

light-controlled variable resistor. resistance decreases with increasing incident light
intensity

Answer 8

Photoresistor or photocell

Question 9

made based on the principle that infrared ray is highly sensitive to flame. It has a specially designed infrared receiving tube to detect fire, and then convert the flame brightness to fluctuating level signal.

Answer 9

Flame Alarm

Question 10

component that receives sound waves and converts them into electrical signals. It detects the sound intensity in the ambient
environment like a microphone does.

Answer 10

Sound Sensor

Question 11

temperature sensor produced by National Semiconductor.

Answer 11

LM35 Temperature Sensor

Question 12

can sense the depth of water, whose core
part is an amplification circuit composed of a transistor and several comb-shape PCB cables.

Answer 12

Water level sensor

Question 13

device made up of seven LEDs connected in parallel that can be used for displaying numerals and some letters

Answer 13

7-Segment Display

Question 14

With low-voltage scanning, ____ have advantages such as power saving, long service life, low cost, high brightness, wide angle of view, long visual range, waterproof, and numerous specifications

Answer 14

Dot-matrix Display

Question 15

can emit various colors of light

Answer 15

Rainbow LED

Question 16

obtain current date and time

Answer 16

Real-time Clock Module

Question 17

composite sensor that contains a calibrated digital signal output of temperature and humidity

Answer 17

Humiture Detection

Question 18

a device which is used to provide connection between two or more points or device in response to the input signal applied

Answer 18

Relay

Question 19

can be controlled to a high degree of accuracy without any feedback mechanisms. The shaft of a ____, mounted with a series of magnets, is controlled by a series of electromagnetic
coils that are charged positively and negatively in a specific sequence, precisely moving it forward or backward in small “steps”.

Answer 19

Stepper Motor

Question 20

type of geared motor that can only rotate 180 degrees

Answer 20

Servo

Question 21

an input device consisting of a stick that pivots on a base and reports its angle or direction to the device it is controlling

Answer 21

Joystick PS2

Question 22

component which receives infrared signals and can independently receive infrared ray and output signals compatible with TTL
level.

Answer 22

Infrared-Receiver

Question 23

wireless application to transfer data in the purpose of identifying and tracking tags

Answer 23

RFID, short for radio frequency identification