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)

The assignment for this week was to design and program a smart device that perform a certain function or solve a problem using Arduino C Text PRIMARILY to write my code in Arduino IDE.

I create a device that can determine the humidity and temperature of the around air.

Also it can detect any body in front of it and calculate the distance from the device to the body.

And there is 4 LEDs their light depend on the room light density.

Tool Chain

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

I used Arduino IDE to write the code.

I used many components to create this device:

bread board
jumpers
Arduino UNO
4 LEDs (2 Yellows, 2 Reds)
I2C LCD display - to display all data
Ultrasonic sensor - to measure the distance
LDR sensor - to measure light density
DHT11 sensor - to measure temperature and humidity
Keypad - to deal with I2C LCD display
Cardboard

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?

First step I searched how to deal with the keypad and I2C LCD display in Arduino.

I found many helpful tutorials and I make some experiments before starting the assignment

second step I start in the assignment only with these two components first (keypad, I2C LCD)

I include their library ("Keypad.h", "LiquidCrystal_I2C.h"), then I copied an example from Arduino examples and make some changes to the code to suit me

Third step I add the ultrasonic sensor and try to show the read on the I2c LCD display

also I copied the code of ultrasonic sensor from Arduino examples and use it in my code

Fourth step I add the DHT11 sensor and try to show the read on the I2c LCD display

Final step I add the four LEDs and control them with the LDR sensor

this is the code I write in Arduino:

(1)

(2)

(3)

(4)

(5)

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?

while coding in Arduino I was connecting the components step by step till I connected to all together, after all things worked I start making enclosure using cardboard.

Finally the device worked, and I start using it...

Assignment

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?

this week my community of learning was the internet...

everything stuck with me I google it then I found someone make the same idea or explain how to use a specific component which I couldn't use.

first I couldn't use motor driver or relay module, then I google and I understand these components well

then I searched how to use the LCD to apply it in my assignment

at the beginning I didn't know what assignment I could make, so I just pick some components randomly and think of an idea that can combine between all these components till I managed to finish my assignment

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?

I faced a problem with wiring the keypad the problem was in the order of wires, I had to try many times to get the right wiring, there is 3 columns and 4 rows each column and row has its own wire so I tried till I understand the sequence of wiring.

I faced a problem with the LCD display, I didn't know the we have I2C with the LCD display. So, when I searched about how to use LCD display I always found many wires and jumpers it was confusing. Then I note that there is a component connected to the LCD display, after searching I know it's I2C and I knew how to use it

Final Project

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

I know better how to use ultrasonic sensor and LDR sensor and how to make a component react depending on their reading

Also I get more familiar with coding on Arduino which will help me a lot 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?

I am so happy I managed to use sensor and use actuators or outputs to act depending on sensors reading, and building a user interface with LCD display was cool.

the coolest thing was to combine between what I learned to make my assignment

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

Arduino Code

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