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

Some designs that inspired my own organizer design

Smart Desk Organizer with Time Tracker

I had a problem organizing my desk and also a problem adjusting the time of study and work, and I had an idea of making a Desk Organizer and also observing the time of study and work.

youtu.be/-i8i4wq-iRU?si=6gGFv6e8RBYUpuqK

https://www.instructables.com/Desk-Organizer-Design-Using-Onshape/

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)

software:

I used Fusion 360 to CAD design of the desk organizer .

I took design measurements and was inspired by the cardboard video that I actually did.

youtu.be/-i8i4wq-iRU?si=6gGFv6e8RBYUpuqK

Open Fusion 360 and create a new design file.
Save my project with a name.
create a new component
Create a 2D Sketch
Select the plane that I need to draw (right, front, top).
Use the Rectangle Tool to create a rectangle for the design parts.
Draw a tape and set almost its dimensions: 10 mm * 3 mm
DrawT slots to be: dimensions: 5.5* 2.40 and 3* 10
I do extrude the design parts to be 3mm
I do the assembly by using the joint tool to fully assemble the design

Customize the Design
Apply materials: Go to Appearance (A) and choose wood.

These are the steps I followed to design all the design parts

draw a tape and set its dimensions: 10 mm * 3 and and
DrawT slots to be: dimensions: 5.5* 2.40 and 3* 10
there is another tape that is 10mm*6mm to give the organizer some length on the ground

I worked a circular hole with a diameter of 10 mm in it in the back part of my organizer the book holder and the back of the cable management system design

I made slots for the tape by using a tool project, and I did circular slots for 3mm screw

Screen Recording 2025-03-11 052651.mp4

The full design

F3D DESIGN FILLS

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)

Softwares:

fusion 360

RDWORKS

ULTIMAKER CURA

The Material

PLAYWOOD

PLA FILIMENT

The Machines

El Malky ML149 CO2 Laser Cutter

FDM 3D Printing

Development/Implementation Process

save the 3 d part as a stl file

save design parts as DXF file

I import the DXF file in RDWorks , and set up the speeds and powers. to be

power: 45 / speed : 40

export the STL files. in cura

then do flat to the design on the bed

I set up the printer.

fabricated parts by laser cut

VID_20250309_140919.mp4

fabricated part by 3d printing

VID_20250309_134657.mp4

DXF files

STL files

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)

Software:

Tinkercad

I used Thinkercad to simulate my electronic circuit

Electric Components for the Circuit:

breadboard

helps organize connections without soldering.

9 Volts Adapter:

Supplies a stable 9V power to circuits and Arduino

jumper Wires

Connect components to the Arduino Uno and breadboard.

allowing signals to transfer.

Input Components

- Measures distance by sending and receiving ultrasonic waves.
- Sends an electrical signal to the Arduino based on the detected distance

Buzzer: Produces sound when powered.

On/Off Switch: Controls the flow of electricity in a circuit.

A DC power supply jack socket is a connector used to provide direct current (DC) power to electronic devices.

Arduino Uno

Arduino Uno is a small programmable board that reads inputs and controls outputs based on uploaded code.

The TM1637 4-digit 7-segment LED display module

is a simple digital display for Arduino and other microcontrollers.

Features:

Uses the TM1637 driver chip for easy control.
Displays numbers, time, or other data (e.g., temperature, counters).
Requires only two data pins (CLK and DIO) for communication.
Works with 5V power.
Commonly used for clocks, timers, and counters in Arduino projects.

electronic circuit in Tinkercad: link

Wiring Connections:

1. Ultrasonic Sensor (HC-SR04)

VCC → 5V (Breadboard)
GND → GND (Breadboard)
TRIG → Pin 7 (Arduino)
ECHO → Pin 8 (Arduino)

2. TM1637 4-Digit 7-Segment LED Display

CLK_PIN → Pin 2 (Arduino)
DIO_PIN → Pin 3 (Arduino)
VCC → 5V (Breadboard)
GND → GND (Breadboard)

3. Piezo Buzzer

Signal Pin → Pin 9 (Arduino)
GND → GND (Breadboard)

4. On/Off Switch

One side → DC Power Positive (+)
Other side → Arduino VIN (to control power input)

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)

9 Volts Adapter/ 2 Ampear

is supplying the Arduino,

and take power from Arduino to : ultrasonic, TM1637 , buzzer

Project Programming

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

1. Declaring Variables & Libraries

#include <TM1637Display.h> → Library for the TM1637 display
Timer variables: timer, prevousTime, mood (controls timer phases)
Pins:
- CLK_PIN & DIO_PIN → TM1637 Display
- trigPin & echoPin → Ultrasonic Sensor
- PIEZO_PIN → Buzzer

void setup

Configures pins for the ultrasonic sensor

Initializes serial monitor (for debugging)

Clears the display and sets its brightness

Distance Measurement (Ultrasonic Sensor) in loop()

Sends a trigger pulse to measure distance
If the distance is < 60 cm, the countdown timer starts
If the distance is≥ 60 cm, the timer resets

Countdown Timer Function (promodor())

Controls two phases:
1. Work Time (work_TIME) → Counts down and displays time

Break Time (break_TIME) → Starts after work time finishes

When countdown reaches zero, the buzzer beeps, and display blinks Updates the timer every second
The buzzer sounds for 1 second when the timer reaches 0

code Works

Ultrasonic sensor measures distance
If an object is within 60 cm, the countdown starts
Time is displayed on the TM1637 module
When the countdown reaches 0, the buzzer beeps
After work time ends, a break time countdown starts
When both timers finish, the system resets and waits for another object

source code link, i take the code from this site , and i modified the code

code.ino

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 assembling the electronics components, connect the Arduino to the laptop by USB to upload the code

VID_20250310_213625.mp4

assemble the fabricated parts and try to assemble the electronics in the fabricated part

after assembling the all fabricated parts

assemble the electronics component in fabricated parts

Video from Rana🐱

video that I do assembly of fabricated parts and assembly of the electronics components

VID_20250311_123514.mp4

connect the electronics component by power and test if it work

VID_20250311_221609.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 make it easier to install the screw and the nut I put the nut on it and put the adhesive tape on the sides and I install the part and then I tie the screws and I took this idea from my colleague Hazem Ramadan

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?

First, when saving files as DXF, make the laser kerfe about (0.05 mm) because when I did the kerfe about (0,15 mm), I made the tabes slots tight, and I had a problem when assembling the fabrication parts, and I solved this by using a circular sander on the tables.

The key to the solution

When I need to cut more design parts, the fab lab specialist advises me to save design files as DXF makes laser kerf about 0.05 mm.
also, the fab lab specialist advised me to solve the problem of sight slots when the parts are fabricated, by use the circular sander on the tables

second: wood exposed to moisture. I use wood exposed to moisture without knowing that the part is bad and I cannot assemble it with other parts.

The key to the solution: the fab lap specialist advised me to solve this problem by using good wood and repeating this part

3. There is a part that, when cut in a laser, has slots that are not cut so when cut in a laser machine, make sure the part is cut well.

The key to the solution: the fab lap specialist advised me to solve this problem by cutting a new part

also, the fab lap specialist advised me if I notice the machine does not cut the part correctly, I repeat the cut again before move the part from its place

Also, when working with electronics, my instructor advised me to make sure that the connection is correct because if not correct, it can lead to burning the component and Arduino, like as I did

Future Work

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

I would add an LCD screen to show the progress of student or the worker

and add a design for the smartphone/tablet stand:

Final Project Design Files

File Name [FORMAT]

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