Week 8 - 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 for this week is a door system , that opens a door and then closes it back after the person enters .

also it turns on a buzzer so that it let know the other that someone enters .

There is android app that uses an input signal that turns on and off the system .

Tool Chain

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

As a software :

I used Arduino IDE to program the Arduino .

I used BlueDuino on the mobile to send Serial signals over bluetooth .

As Hardware I Used :

Arduino
UltraSonic
H-Bridge
DC Motor
Buzzer

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?

I have designed the circuit on tinker cad as following
Then wired every thing up but added the H-Bridge to the motor and the bluetooth module .
Programmed the arduino so when the distance is less than 10 Cm the motor and buzzer starts to work
Also the circuit is not going to work only if the Bluetooth received the enable signal .

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?

Wired the bluetooth module so that tx pin is connected to rx pin on Arduino and vice verso for rx pin .
for the buzzer connected the positive pin to pin 11 and other pin to GND
for the motor connected it to the H-Bridge on the motor pins
and the H-Bridge connected the 3 Power pins two of them to the 5 v and the middle one to the Ground
Connected the control pins from Arduino to the H-Bridge .
Programmed the Arduino and with a little tweaking every thing worked at the end .

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?

Marwa helped me in understanding the H-bridge while we were debugging the issue with her circuit .

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?

I had a different Idea at the beginning which is to use a servo motor and put the ultrasonic above it like a radar , but the servo heated up and didn't work anymore :( .

Final Project

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

I will be using the Bluetooth module in my final project so that will help me a lot .

WOW!

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

Using processing , it is a new way for me to send data from PC .

Assignment Design Files

Arduino Code

Project.mp4

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