Lesson 6: Utilizing Analog Inputs and Outputs

Question 1

What are the two types of signals that carry information?

Answer 1

Analog and digital

Question 2

Differentiate between analog and digital signals

Answer 2

Analog signals have continuous electrical signals while digital signals gave non-continuous electrical signals.

Question 3

What type of signal that all of signals are natural or come naturally?

Answer 3

Analog

Question 4

What type of signal where it is used in many systems to produce signals to carry information and it has declined with the arrival of digital signals?

Answer 4

Analog

Question 5

What type of signal where it is continuous in both values and time?

Answer 5

Analog

Question 6

What type of signal where it is not continuous but discrete in both value and time?

Answer 6

Digital

Question 7

What type of signal where it is represented by binary numbers and consists of different voltage values?

Answer 7

Digital

Question 8

It is an important component when it comes to dealing with digital systems communicating with real-time signals.

Answer 8

Analog to Digital Converter

Question 9

It is where you can type characters as a command to send it to your Arduino board?

Answer 9

Outbound Area

Question 10

It is where characters typed as commands are displayed.

Answer 10

Inbound Area

Question 11

It specifies how the command is terminated?

Answer 11

Line End settings

Question 12

It specifies the transmission speed that your board will be using. It must match the setting your sketch uses in the Serial Library.

Answer 12

Baud rate

Question 13

It is a resistor that is used to vary and control the amount of current that flows through an electronic circuit. When you turn the knob of a potentiometer, you change the resistance by continuously varying rate.

Answer 13

Potentiometer

Question 14

What is the range of resistance that potentiometer can handle?

Answer 14

0-1024

Question 15

Elaborate the structure of potentiometer

Answer 15

A common potentiometer has 3 leads/legs. The outer lefs are for power (The left outer leg is the supply while the right upper leg is the fround, the middle leg is for the value.

Question 16

It is capable of displaying any color light from spectrum.

Answer 16

RGB LED

Question 17

Describe how RGB LED looks like?

Answer 17

Unlike previous LED, RGB have 4 legs instead of 2. This is because, RGB LEDS are simply tri-color (red, blue, green) separate LEDs crammed into a single LED package.

Question 18

It is a digital signal used in variety of applications to create the perception of changeable voltage. I created illusion that we are outputting different voltages.

Answer 18

Pulse Width Modulation (PWM)

Question 19

A function that is used to select reference source.

Answer 19

analogReference()

Question 20

A function tthat is used to convert the input voltage from 0 to 5V, to a digital value beween 0-1023

Answer 20

analogRead()

Question 21

A function that is used to vary brightness or control the speed of a motor. It sends its analog value to a PWM digital pin.

Answer 21

analogWrite()

Question 22

Give example of devices that uses analog signal

Answer 22

Analog watch, light, sound

Question 23

Give example of devices that uses digital signal

Answer 23

Arduino microcontroller