Arduino for Beginners - 2022 Complete Course - Activity 05 - Solution

The video tutorial guides viewers through creating a simple traffic light system using LEDs. It covers initializing LEDs, defining pin numbers, setting modes, and programming the sequence of lights. The tutorial emphasizes the importance of code readability and offers tips for optimizing and structuring code for future modifications.

What is the first step in creating a small traffic light system?

• Testing the LEDs

• Setting up the power supply

• Writing the application code

• Initializing the LEDs

Which pin number is assigned to the first LED?

• Pin 11

• Pin 13

• Pin 10

• Pin 12

What is the initial state set for all the LEDs during setup?

• Medium

• Low

• Undefined

• High

How long does the red LED stay on during the loop?

• Four seconds

• Three seconds

• Two seconds

• One second

What happens after the green LED is turned on in the loop?

• The red LED is turned off

• The yellow LED is turned on

• The green LED is turned off

• The system resets

Why is it important to focus on code readability?

• To use more complex algorithms

• To make the code run faster

• To reduce the number of lines

• To make it easier to read and modify

What is a suggested way to improve code readability in the traffic light system?

• Add more comments

• Use fewer variables

• Use complex logic

• Set digital writes for all pins in each block