Final Project Journal

Project Ideation

1- Tell us about the idea of your project. Why do you care about this? What were you inspired by? Include images and videos of similar projects

I see that children nowadays are excited to learn more about new technologies , so I wanted to make them know how a smart home be like and we can reach using "coding" . Taking the advantage of their love to tiny furniture , I making a small smart home for them to play with and learn from ♥.

Project Construction

2- Explain the CAD process of your project. How did you use the software to design your project? (List the softwares/tools/materials...etc that you used)

I have used those softwares to help me design my project so that I can fabricate later.

I used fusion to design the shape of the home , then used laserCAD to define power and speed values.

I used Cura APP to slice the furniture files that I have downloaded from www.thingiverse.com/

cure App

laserCAD

Fusion App

I started with drawing the sketches for each part taking in mind the mounting of each electronic component I'll use (I got the dimensions from the real components I have) , Actually they were 12 sketches.

Then I started extruding each sketch of them to a new component , and I used Joint option to make all components appear in a 3D shape.

Finally I've downloaded the components from grabcad.com/ and mounted them in the 3D design to see the final shape.

All Sketches

Back

Higher floor

Second floor

Lower floor

Keypad holder

Door

Lower limiter

Higher limiter

right and left Upper cover

Garage door

Left side

Right side

All Components

Back

Second floor

Lower floor

Higher floor

Right side

Left side

Door

Lower limiter

Higher limiter

Top of home

Garage door

Final Design

Final Shape After Joints

Final Shape After Mounting components

Using Cura To Slice

I have used Cura APP to Slice All the furniture I have downloaded .

I made them all to be 5g and with no supports and with 0.3mm layer high.

Actually ,I printed 11 files.

3- Explain the fabrication process of your project. How did you use the machine to fabricate your project? (List the softwares/tools/materials...etc that you used)

Black filament

2.4mm white wood

Laser cutter machine

3D printer machine

Preparing to send files to laser machine

I used laserCAD APP to set cutting to speed 15 and power 75, also I set engrave power to 50 with speed 300 to write "welcome", "faten" and the girl shape.

I had wooden sheets of 60*40 cm ,so I put parts to be fit that size .

I have noticed that the machine started with the engraves then it did all the cutting parts.

Project Electronics & Power Management

4- Describe your electronic circuit. What are the input and action components? What is the function of each? How do the components integrate together to form your smart system? (List the softwares/tools/components...etc that you used)

My whole system can be divided into 3 parts:

Keypad as an input device and servo as an output device to open and close the door.
DHT sensor as an input device and a fan as an output device so that the fan opens when temperature is greater than 26 Celsius degree and closes when it's equal or lower than 26 .
LDR sensor as an input device and LED's as output devices so that when there is light around the LED's dim so power is saved and when there's no light the they shine.

Arduino Uno and it's cable

Some male-female and male-male wires

Breadboard

Servo motor

3*4 Keypad

2 LED's

DHT Sensor

5V DC Brushless FAN

LDR Sensor Module

5- What is your power source? How did you select the suitable power source for your project? (List the softwares/tools/components...etc that you used)

for the power management:

I have searched for every component how much volts it needs and found that the 5V adaptor is enough so I can use the adaptor or the Arduino power.

acinfinity.com/pages/hvac-setup/voltage-current-and-wattage.html

5V Adaptor

Project Programming

6- Describe the code of your project. How did you program each function of the project?

Preparing For The Main Code

Before writing the main code we have to import all libraries we need , so I imported for Keypad and Servo. We also need to define all the variables we may need : like defining key buttons, digits (which will accept what is entered), readings from sensors.

After that inside the void set up() ,we need to define all the Arduino pins that we need and define the speed of sending data using Serial.

Keypad With Servo

The third and final part is writing inside the void loop() , we write here the things what we need to be repeated.

We get the password and put each digit to it's suitable variable (with the help of a counter).

After entering the password and storing it in variables , it's time to check if it's correct or not .So I used switch case to check if it's "3456#" or there is a problem .

Finally, we set variables to NULL to be able to get another enter from the user.

LDR With LED's

We receive the sensor readings in a variable from an analog pin, then we use mapping to be able to control how shining the LED's are according to the sensor reading.

DHT With Fan

We need to get humidity and temperature using DHT and store that in variables then we use if condition to check if the temperature is greater then 26 C OR humidity is greater than 30% . If so , we will open the fan . If not, we will close it.

Project Integration & Testing

7- Demonstrate with text and visuals how did you integrate the project’s modules together? What are the testing results? (Include a Demo video separately, showing a proof of functionality)

After I have made sure that the first part is functional , I add the second part wiring and upload it's code to check, Finally the third wiring was added and checked.

After I have checked all the parts, I found all the wirings were done and it was time to add all the codes in just one file.

KEYPAD WITH SERVO.mp4

Keypad with servo

LED with LDR.mp4

LDR with LED'S

DHT with fan.mp4

DHT with fan

Final shape ♥

final demo.mp4

Sharing & Collaboration

8- 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?

To the left is my first design for the home and as you can see the garage door (complete feature) was at the bottom, but my instructor didn't like this and asked me to make it up to act like a real door opened with servo.

Overcoming Challenges

9- 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 project?

When I was designing on fusion360 I was making a repeated mistake which is copy and past bodies not sketches , which leads later to : when I make an edit in one body the other is being affected as we can see in this photo (making a hole in one copy affect the other) .So, my instructor advised me to open a new project on fusion360 with no body copy.

Future Work

10- If you had more time, what is one thing you would change/ Do next in your project?

If I had more time I'd close the upper floor from the two sides so that no wires could appear only the furniture can be seen.

Final Project Design Files

Arduino Code[.ino]

Design[.DXF]

Design[.F3D]

Furniture links[.docx]

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