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)

My Idea is to enhance and make the pet feeder for my cate (loly ^_^) from the previous week assignment.


The pet feeder consists of ultrasonic sensor that sense the cat is close and a servo motor to control the food gate with a buzzer indication that the gate is opened and the buzzer goes off with the gate is closed,

Also the system has a temperature sensor to sense the temp and make sure it's comfortable for the cat.

Tool Chain

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

  • Tinker CAD for the simulation.

  • Breadboard for testing with the components.

  • Ultrasonic sensor.

  • Servo motor.

  • Buzzer.

  • LM35 Temperature sensor.

  • Arduino UNO.

  • Wires & Jumpers.

  • Cardboard.

  • Bluetooth HC-05 module.

  • Arduino Blue Control android app.

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?

Design Steps

  • First I made the simulation using Tinker CAD.

  • I import an Arduino, Ultrasonic sensor, Servo motor.

  • Ultrasonic has 4 legs I attach the VCC to 5v pin on Arduino, GND leg to Arduino GND pin, Trigger leg on pin 7 & Echo leg to pin 6.

  • Servo has 3 legs I attach the VCC to 5v pin on Arduino, GND leg to Arduino GND pin & the Signal leg to pin 9.

  • Buzzer has 2 legs I attach the GND leg to GND pin on Arduino & the other leg I attach it to pin 11.

  • The LM35 Temperature sensor has 3 legs I attach the GND & VCC legs to VCC & GND on Arduino and the middle leg (data leg) to A) pin on Arduino.

  • I write the code that reads the distance, if the distance is 15cm or less the servo motor turn 90 degree and waits for 4 seconds also the buzzer goes on & then it the servo rotates again for 0 degrees then it waits again 3 seconds and the buzzer goes off and then continue the loop.

  • Another mode for the system to work if the user enters '1' in the serial communication the motor & the buzzer moved on and off like I described above.

  • The temperature sensor measure the temp and print it on Serial monitor.

  • From TinkerCAD I copied the code, then I pluged in the Arduino, open the Arduino IDE and paste the code then upload the code.



2021-09-15_08-59-39.mp4

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?

Maker Diploma - Assignment 7-1.mp4
Maker Diploma - Assignment 7-2.mp4

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?

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I take feedback from Amany she encouraged me to apply the idea and says it will be cool.

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?

For good luck I have no issues working on the project.

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Final Project

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

Maker Diploma - Assignment 7-2.mp4

WOW!

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

The coolest thing is to work with geeky guys and girls It was very fun really sharing ideas and jokes xD


I will never forget the instructor that helped me when I stuck and give me some advices.

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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.


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Assignment Design Files