Week 7 - Journal

Ideation

Tell us about your assignment's idea for this week. Why do you care about this idea? What inspired you? (Please include images or links to sources of inspiration)

Assignment Objective:

This week's assignment was about making more complex smart devices using Arduino; by combining more than one input component to control more than one output component

Idea:

As the final project week is getting closer, I decided to make a device that utilize most of the input and output components in my final project, to get more comfortable with them. So, I choose to make a simple portable game player, with a game called "speed game", which is about answering 19 questions very fast to win the game

Tool Chain

Which software/machines/materials did you use in the assignment? Why?

Electronics:

1- Arduino UNO

2- small Breadboard

3- IR sensor

4- Jumper wires

5- LCD 16 x 2 display with I2c module

6- Buzzer

7- 4x 3 Keypad

8- Cardboard

Software:

1- Arduino IDE (for writing and uploading the C++ code to the Arduino board)

2- TinkerCad and Microsoft power point (for drawing the wiring diagram)

IR sensor

4 x 3 Keypad

Design/Preparation Process

Explain the design and/or preparation process of your assignment. How did you use the tool or software to design and/or prepare your assignment before fabrication/implementation?

Input components:

1- the 4 x 3 Keypad to enter the answers

2- the IR sensor to begin the game once you put your hand in front of it, which make it a smarter game play

Output components:

1- the LCD display for displaying the game

2- The buzzer for giving the wining and losing sound effects

Circuit design

Wiring

1- 4 x 3 Keypad:

it has 7 pins, 4 for the rows and 3 for the columns and they are wired as shown in the figure

3- the LCD display:

the LCD is connected to an I2C module to make more convenient wiring with the Arduino and it is wired as shown in the figure above

4- The Buzzer:

it has two legs; one is connected to an output pen (analog output), and the other is connected to the VCC pin

Code

1- libraries:

I imported three libraries:

LiquidCrystal_I2C library, for controlling the LCD display
Keypad library, for controlling the keypad
chrono library, for giving stopwatch functionality in a simple way

2- pseudo code

1- creating two arrays, one for saving the questions (of type string) and the other for saving the corresponding answers (of type char)

2- looping over the questions array and display them on the LCD display

3- checking for the player input and give a 3 seconds time interval for answering the question (using chrono instance)

4- compare the player input with the right answer and if it is correct print on the screen "right" with a specific buzzer tone, and if the answer is wrong print "wrong, try again!"

5- In case of reaching the end of the game or losing, if the player get closer to the IR sensor the game will start all over again

Development/Implementation Process

Explain the development/implementation process of your assignment. How did you use the machine/tool to manufacture or implement the design of your assignment?

I connected all the component on a big breadboard using jumper wires, I used a cardboard box to integrate the Arduino board and the other components inside it, and I used adhesive tape to fix them on the box

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Community of Learning

Did you ask for feedback? What are the ideas that others have contributed or suggested? What was someone else’s idea that you built upon? How did you help your peers? How did your peers help you?

Overcoming Challenges

When you got stuck, what/who did you turn to? At what point did you have to pause to research or learn more before moving on? What are some mistakes, pitfalls, or challenges that others can avoid if they were doing this assignment?

At first I was struggling to find a way for counting time interval for controlling the time for answering the questions, then by some search I found the Chrono library that can give me this functionality

Final Project

How can you use the skills and knowledge that you've acquired this week in your final project?

I already made this project to get more comfortable with the LCD and the keypad integration, because they are main components in my final project

WOW!

What is the coolest thing that you've learned this week? What is something that you will never forget from this week?

Weekly Digest [OPTIONAL]

Tell us about any other cool things that you've made this week: in the Hands-on activity, tutorial examples, exercises, or any other cool mini-project that you tried out aside from the assignment.

Title of Media

Assignment Design Files

Game.ino

File Name [FORMAT]

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