Week 7

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)

use of pir motion detector for lightening

This week I tried to make a project with 2 input and one output. In this project I used led as an output which acts as the inner light of a room and it can be controlled with keypad password of the door room or with ir sensor that make the led on whenever anyone in the room. I care about this project because I may use 2 inputs in my final project specially keypad.

Tool Chain

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

software:

arduino

tinkercad

materials: arduino uno

ir sensor(input)

led(output)

lcd(output)

small bread board

cardboard, scissors

jumpers (male -male & male - female)

arduino

keypad

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 made the circuit as shown:

I connected:

ir sensor to pin 12, 5v and GND as an input component.
keypad to pins from 3 to 9 as input component.
lcd to 3.3v, GND, SCL to pin A5, SDA to pin A4 as output.
LED to pin 2 and GND as output

first: I made the code with ir sensor alone and tested it

pin 12 for signal of ir and pin 2 for led

the led is on when the sensor read is low

In void setup: I made pin 12 which connected to ir signal as input and pin 2 which connected to led as output.

In void loop: I used if function to make the led on when the sensor read is low and off when high.

second: I made the keypad and lcd code as explained in the week tutorial using the keypad library

-I included the library of keypad

-write the type of keypad and numbers in rows and columns as opposite

-to take an input value from keypad; we added variable called digit1 and its type is char and repeated this for numbers we need to add and put counter started from 1 to the end number

-'int state=0' to read the state of the led and make it to the opposite state ;eg(if high, it will turn into low)

I merged them to make the led turn on whether the ir sensor read low or the pass is correct

coding

and the file of total code is below

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 connected the circuit as follow:

keypad to pin from 3 to9

lcd as its data sheet

I uploadded the code

I used cardboard to make enclosure

WhatsApp Video 2022-09-28 at 8.11.47 PM.mp4

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)

I made the code that read ir sensor as follow:

if ( digitalRead(12) == HIGH) {

and the circuit wasn't operating , Mohanad told me to make HIGH LOW

ir read

Final Project

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

keypad coding

I think I will use the keypad in finall project

WOW!

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

how to code keypad and print it on lcd

9m.mp4

Assignment Design Files

.ino

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