Week 7

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)

Pomodoro alarm

It is an alarm that helps you work or study in a specific system to improve performance and prevent you from getting bored while working.

My idea is to make the alarm work remotely via ultrasonic sensor by bringing your hands close to the lenses.

Tool Chain

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

Software

Component

ultasonic sensor

buzzer

wires

preadboard

arduino uno

cardboard

bosch button switch

lcd 16x2 i2c

risestors

led

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?

Tinkercad

1- I did was collect the components.

2- I connected the lcd with Arduino

3- I connected the buzzer then.

4- Here I started connecting the LED and switch.

5- Here I was done connecting everything.

How it works ..?

We connect the alarm to a 5V power source.
We turn it on using the switch.
We hear a sound indicating that it's on. When you bring your hand close to the ultrasonic sensor, it will start counting down 25 minutes of operation, then make a sound indicating that it's finished.
When you bring your hand close again, it will start counting down 5 minutes of rest, then make a sound indicating that it's finished.
The cycle begins again until you turn it off using the switch 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?

Wiring

1- I collected the components.

2- I connected the lcd with Arduino

3- I connected the buzzer then.

4-I connected the ultrasonic sensor.

5-Here I connected the LEDs.

6- Here I was done and connected the switch.

WhatsApp Video 2025-09-01 at 02.10.10_5d866e53.mp4

7- Simulation

Coding

How did I write the code?

Initially, I divided it into several parts.
Each part was a separate code, such as the buzzer.
I used some examples from the library to write the code for the LCD, buzzer, and switch.
First, I defined the location where I would connect the components.
In the void setup phase, I defined the inputs and outputs, such as the switch, screen, LED, and buzzer sound.
In the void loop, I created the basic code that the process would follow.
I used if states. If the switch is closed, it gives a message. If it is open, it gives a message and performs the next step.
Then, it gives a message that you should place your hand in front of the sensor, and the buzzer makes a sound.
When you bring your hand closer by less than 10 centimeters, a countdown begins at 25 minutes. When it's finished, it makes a sound.
Then, the next step is that you should bring your hand closer again to start your rest time. You have 5 minutes to rest, and when you're done, you beep again. When you're done, you're given a book to start over, and then you have to repeat all the steps again.

Note :

In some parts I did not know how to work, so I used some videos from the diploma and the AI program to help me understand the parts that I did not know enough information about, such as making the timer count down.

Fabricate

1- I cut the cardboard to the sizes and shapes that were chosen.

2- Here I have collected everything and put all the components in their places.

3- Here I show the shape of the body from the side and the location of the button and the power opening

WhatsApp Video 2025-09-01 at 02.09.33_368971de.mp4

4- Simulation

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?

I've wanted this alarm for a while and didn't know where to get it, so I decided to make it myself.

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?

The Problem

1- There were LEDs that lit up with each step, and it was very difficult to place them inside the prototype.

2- There was also a problem with the switch not working.

The Solution

1- I completely removed the LED, but kept its part in the code until I find another solution.

2- I changed the switch to another one, and it worked normally.

Final Project

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

It helps me to write the code and find out the bug and solve it

WOW!

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

Doing something you've wanted to do for a while is really great.

Assignment Design Files

Tinkercad

Arduino code

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