Week 8# - Journal

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)

This week a very annoying lock 🎉

i used a servo motor that turns 90 degrees to open when i click the '1' button with an annoying buzzer that tells the door is open 🤯

Tool Chain⚒️:

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

Tinker CAD

to build and simulate my circuit before making it IRL

Arduino UNO

It will be our brain for the circuit.

Jumper wires

to wire it all up

Bluetooth module HC-05

for wireless communication.

servo motor

I'll use it to move the as a door simulation pen

Small breadboard

for building temporary circuits

Buzzer

buzzer will buzz when door is open so that you remember to lock the door back

Arduino Bluetooth controller app

to communicate with Arduino via Bluetooth.

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/Preparation Process:🌟

first things first we will build and simulate our curcit in Tinker CAD✨

wiring diagram, which is provided by google cause there's no bultooth module in tinkercad FYI

My circuit

-Circuit Wiring:

-Arduino to Bluetooth Module connection: Connect the TX pin of the Bluetooth module to pin 2 (RX) of the Arduino.

Connect the RX pin of the Bluetooth module to pin 3 (TX) of the Arduino.

Connect the VCC pin of the Bluetooth module to the 5V pin of the Arduino.

Connect the GND pin of the Bluetooth module to the GND pin of the Arduino.

-Arduino to Servo Motor: Connect the signal wire- the orange one- of the servo motor to digital pin 9 of the Arduino.

Connect the positive wire -the red one- of the servo motor to the 5V pin of the Arduino.

Connect the negative wire-the brown one- of the servo motor to any GND pin of the Arduino.

-Arduino to Buzzer: Connect one taller which is (+) leg of the buzzer to digital pin 11 of the Arduino.

Connect the other leg of the buzzer to any GND pin of the Arduino.

-Power Supply: Connect the Arduino board to your computer via USB for power.

Explain the development/implementation process of your assignment. How did you use the machine/tool to manufacture or implement the design of your assignment?

Development/Implementation Process⚒️:

Now let's start coding 🌟

and it is the hardest part so far

The first part of the code:

start by including libraries that you need for coding in my case it was the servo motor, so I include it in the first line then i defined its place on Arduino in the third line, and I defined a variable for incoming data + a variable for each other component which in this case was the buzzer.

The second part of the code:

I set every pin mode as I'll be using 2 outputs which is servo and Buzzer, and I'll start a serial as it will be my data entry

The Third part of the code:

we will start with making serial avilable = 0 so that serial print only the data we insert.

Then IF\else condition, and i set 2 If conditions, one for every sensor.

Ultrasonic sensor If condition:

which will be turning the servo motor to open, and making the buzzer buzzing when I hit the digit 1, and will turn the servo closed and stops the buzzer whin I hit "2"

Real life check⚒️:

VID20240224180844.mp4

now lets make things talk to things IRL, pluse you can hear how it's annoying to people around 🌟

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)

Overcoming Challenges

there was no Bluetooth module in tinker CAD so I had to look up some other diagram in Google.

Very annoying lock [.ino]

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