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)

our assignment this week was to design and program a smart device that perform a certain function or solve a problem ,while the arduino has to read from multiple inputs(sensors, switches,buttons..)and to control multiple action components (buzzer,led,motors...)

this week i decided to make a parking sensor device ,as its function is to sense the distance between the car and the obstacle using ultrasonic sensors , while indicating the distance by led lights or beeping sounds from a buzzer.

Tool Chain

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

the software used to interpret the programing to arduino is arduino ide , and the software used to design the circuit is tinkercad

Arduino ide

tinkercad

white cardboard

the components used in this project are :

1 x buzzer
3 x 220 ampere resistor
1 x RGB LED lamp
1 x mini breadboard
1 x 5v adapter
1 x slide switch
15 x male\male electric wire jumpers
cardboard
Arduino Uno

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?

for this assignment i wanted to make a parking sensor with two modes:

first mode is just a demonstration for the led light and the accompanying sound by the buzzer
second mode is for the sensing function with the ultra sonic sensor

first i designed the circuit with the Arduino for programing using tinkercad and assigned:

the buzzer to pin 9
the lRGB led to pins 6,5and3
trig to 11
echo to 10
led mode to 13
sensor mode to 12
the switch (which will be replaced by the tweezers ) to pin 7

circuit design

assembled circuit

i started writing the code by defining the pins numbers

then added the ultrasonic definition to the code

and defined which pins are input and which are output

i wrote for led mode to to turn the led colors in sequence just to demonstrate :

red and fast beeping sound mean the obstacle is close as (from 5 to 10 cm)
yellow and slow beeping sound mean the obstacle is as close as (from 10 to 20 cm)
green and slower beeping sound mean the obstacle is as close as (from 20 to 30 cm)

and for the sensor mode i added the equation to define the distance the ultrasonic reads and wrote on what distance the device should perform:

red and fast beeping sound mean the obstacle is close as (from 5 to 10 cm)
yellow and slow beeping sound mean the obstacle is as close as (from 10 to 20 cm)
green and slower beeping sound mean the obstacle is as close as (from 20 to 30 cm)

Arduino complete 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?

20220410_030333_1.mp4

code testing

first i added the code to arduino by using arduino ide then tested the circuit before installing in the housing

cardboard pieces

i made simple housing from cardboard and assembled with tape

20220412_193155_1.mp4

final project

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?

the functions for the slide switch were reversed instead of performing as intended, omar okasha adviced i turn the inputs into INPUT_PULLUP instead and it worked fine

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 wanted to use the toggle switch we have in the kit , but when ever i used it the device lagged and couldn't perform the sensor mode , so i opted to not use it and to stick to the slide switch to save time

Final Project

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

the skill i learnt this week will help me program two different modes into the arduino and how to switch between them

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 i learned is to be able to switch between modes in arduino, also i liked making a parking sensor ,i might design one for my self to use.

Assignment Design Files

arduino code

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