Week 8- Journal

Smart Home

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)

Design and program a smart device that perform a certain function or solve a problem: program Arduino UNO to read signals from multiple input components (Sensor, Switch, or variable resistor) to control multiple action components (Motor, Buzzer, LED...etc) using Arduino C (Text Code).

A smart home controlled via Bluetooth to play music and change the color of RGB LED to lightening the home

Tool Chain

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

Hardware components

Electronic parts

RGB LED

9V adaptor

Jumper wires

Breadboard

Resistor

Bluetooth module

Screw terminal block

Arduino UNO

Buzzer

Software

Tinkercad

a free, easy-to-use app for 3D design, electronics, and coding.

Arduino Bluetooth Control

Arduino

The open-source Arduino Software (IDE) makes it easy to write code and upload it to the board

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?

action components:

Displaying sound through buzzer and changing color of RGB led through Bluetooth module

Simulating the circuit on Tinkercad:

Wiring the electronic components:

Firstly I connected the circuit like the following diagram then used pins 0&1 which are TX & RX to connect them with the bluetooth module:

RX UNO (Pin 1) with TX Bluetooth
RX Bluetooth with TX UNO (Pin 0)
ground Bluetooth with ground arduino
power bluetooth with 5V

Then uploaded the code to the board .. After that I open the app on my phone choosed to connect with Bluetooth device and choose my module then went to buttons to send the numbers in the code

Number 1 -- LED Color is Blue - Motor Speed 100
Number 2 -- LED Color is Green - Motor Speed 170
Number 3 -- LED Color is Red - Motor Speed 255

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?

The code starts with setup my outputs pins and the speed of serial communication to be 9600 then as a loop give the user 3 options If you pressed number from 1 to 3 in the app and then it will send the number to the Bluetooth module "the serial" & the output will be one of the following:

LED Color is Blue - Motor Speed 100
LED Color is Green - Motor Speed 170
LED Color is Red - Motor Speed 255

And all of that happens each 2 seconds.

by clicking the icon of debug button and it will start debugging the the code.

if there is any debug there a massage will appear at the bottom of the screen

and also the right button for check if there is any debug

action components:

buzzer - RGB LED

circuit.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)

after connecting and coding the circuit the circuit didn’t work.

solution:

by the help of one of my colleagues we reconnect the circuit -as explained at design part-, then :

debugging the code it was correct.
troubleshooting the circuit by checking the connection of each component, and I found that I reversed the connection off RX and TX
I didn’t connect the connect the ground of bluetooth correctly.