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)

Digital Circle Circumference Calculator. My project is inspired by this Circle Area Calculator. My modification is to make it more digitized/smart by using ultrasonic to measure the circle diameter instead of measuring it manually.

Its function is to measure the circle diameter, calculate its circumference, then make a sound and light effect if the circumference is within a given range or make a warning sound and light effect if the circumference is out of the given range.

Tool Chain

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

Tinkercad

for circuit wiring and checking the functionality of our code

Arduino IDE

Arduino Uno - Arduino USB cable

5V power adapter

Multimeter

Ultrasonic - Slide switch - RGB LED - Biezo Buzzer - 3 330 Ohms resistances - Mini breadboard -

male-male jumper wires

male-female jumper wires

20 CM ruler

cardboard

Clear cellotape

Cutter

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?

1- do the wiring of our Ultrasonic separately using Tinkercad

2- write code for Ultrasonic that reads the diameter(x) of a given circle

3- copy and paste the code to Tinkercad software to test it functionality

Ultrasonic Tinkercad testing

Ultrasonic w serial .ino code

4- build a simple circuit that connect an RGB LED with a slide switch using Tinkercad

5- write a simple code that makes our RGB LED transfer between red and green light. (JUST FOR TESTING)

6- copy the code to Tinkercad software to test its functionality

Tinkercad slide switch simple circuit

Slide switch w RGB LED .ino

7- construct a simple code for the Piezo buzzer

Note: the tone changes by changing the variables in line 8.

The full code

8- construct the full circuit with Tinkercad and test the code

Tinkercad final circuit

final code .ino file

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?

Stage 1: Testing

20240228_204532.mp4

build the actual circuit of RGB LED with slide switch

Note: in Tinkercad, the Green pin is replaced with the Blue one. but the green light works properly with the actual circuit.

20240301_213444.mp4

Here, I checked the buzzer code with an actual circuit.

Stage 2: Full circuit

construct the final circuit based on our Tinkercad wiring diagram

testingfull circuit.mp4

Final Circuit

(Here, we only test its functionality before adding the enclosure)

Stage 3: Enclosure

connect the LGB LED and the slide switch to male-female jumpers so we can implement them into our enclosure

cut 6 squares of the same size

In one side, cut 2 slots for the Arduino

In another side, cut a slot for the Ultrasonic, the slide switch, and the RGB LED

Overcoming Challenges

What kinds of challenges or problems did you face while doing the assignment, tutorials, or exercises? How did you solve them? Did you ask for help from an instructor or peer? Please provide a link to the tutorial or article that you used to solve your problem (if any)

Final Project

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

20240313_000841.mp4

WOW!

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

Ultrasonic sensor gives some errors

to reduce the errors, a piece of cardboard is added to the project while measuring.

It still makes an error with the very small dimensions as shown in the project video.

Assignment Design Files

Tinkercad final circuit

final code .ino file

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