Week 7

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)

My project helps visually challenged people to walk without crashing into walls and obstacles. This help them to live freely.

The inspiration came from the searching about different idea. I need to choose a topic which is simple and suitable for the criteria in order to complete the final project tasks.

Tool Chain

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

Software

1.TinkerCad:

I used TinkerCad software to build the circuit in the first to check it and write the arduino code blocks.

2. Arduino software:

I used TinkerCad software to build the circuit in the first to check it and write the arduino code blocks.

Electrical Components

1.Arduino uno board:

The board used for the connections of breadboard containing wires and the remaining wires of the components.

3. Ultrasonic sensor:

The sensor is rotating in order to detect the presence of an object about a specific distance.

5.Resistor:

The 220 ohm resistor used to reduce the flow of current in order to give the required amount of electric current for each component.

7. Arduino Cable:

The cable used to connect the Arduino uno board with PC to allow the board programming.

9. Bottom:

I used buttom to make the circuit turn on and turn off.

2. Breadboard:

This board used to connect the components with the Arduino board in order to reduce the number of used wires.

4. LED:

LED used to be green at the save mode and when the person face any type of obsticle it will be turn off and the red one will be turned on.

6. Jumper wires:

Those wires used for connections between component, breadboard, and Arduino board.

8. DC motor:

The motor used to move the wheels of the device.

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?

At the first, I open Tinkercad to start in circuit building.

I brought Arduino board, ultrasonic detector, 2 LED (green and red), 2 resistor (220 ohm), and jumper wires.
Then I connected the Tigger of the detector to pin 13.
I connected the echo to the pin 12 of Arduino.
I connected the positive of the of detector with 5V of Arduino board.
I connected to the negative of detector to GND of Arduino.
I connect the positive of red led with pin 7 in Arduino. and positive of green led with pin 5 in arduino.
I connect the negative of the two LED with the ground in the Arduino board.
For the buzzer I connected the positve with the positive and the negative with the GND of Arduino.
For the Hobby, I made it continuous and connected it from red one to positive and for the black one I made it connected to negative one.
After I finish the wiring, I started in the coding writing by using the Arduino IDE software. First, I made the ode read the pin of the Tig and Echo and put the distance less than 70 cm to be suitable distance for the user. and I there is nothing in this distance, the green light is on which means safe mode, and else the red light will on.

week 7 final.mp4

week7.ino

ino Arduino code

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?

I rebuilt the circuit as the same way I used in Tinkercad, I connect the ultrasonic sensor with the Arduino direct to be able to put it in the cardboard and complete the connections.
Then I uploaded the code on the Arduino by using the IDE software and finally I tried the circuit as shown in the veido.

VID_20240911_051115.mp4

Circuit testing

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)

The most challenge I faced in this week that I faced a lot of problems in fixing the component in the box and I tried to handle it by using a double face glow recommended by video tutorials.

I also faced a problem in making the buzzer with different intensities, but I can't be able to do that. So, I made it with the same tone.

I made the circuit and I found finally there is one input which makes me repeat the circuit again with adding hobby for the device movement.

Final Project

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

In this week I practiced more on electrical circuits, how making them electronic circuits, and how deals with different connections of different components. The integration of many components in the same circuit and how can make a code to run those components by using Arduino board and IDE software.

WOW!

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

In this week I made thing which was very pretty for me, attending the extra session about the circuits with breadboard, copper tape, and PCB which was interesting for me as I made in my work before the PCB by using etching method. So, I was very pleased to see other techniques such as milling machine.

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.

EOWeek Session

This week was really grateful, we made two model of hands by using circuits and TinkerCad;

The first one is moving manually.
The other one is moving digitally.

I worked with Toka and Kristin. It was an enjoyable time to work with them together.

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