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)

The idea of this week to use Blutooth module to control two outputs. Used LEDS to give different statues and servo.

Tool Chain

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

Software Materials: Electronic Tools

Tinkercad

Arduino IDE

LEDs

Servo motor : Open/Close

Resistor 220 ohms 5V adapter

Jumper wires

Cable for Arduino Uno

Bluetooth Module (HC-05)

Breadboard

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?

TinkerCad Project: Arduino, Bluetooth HC0-5, LEDs and servo motor

I have collected the necessary items from the electronic kits and added them to the workstation.

I arranged the items on the breadboard and linked each one to particular connectors on the Arduino.

The servo motor was linked to port 9 of the Arduino.

I included 3 modifications: the red LED was linked to port 10, the green to port 8, and the orange LED to port 9.

Here:

Bluetooth module HC-05 is the input.
Servo motor and LEDs are the outputs.

TinkerCad Simulation

I started connecting the Arduino’s ground (GND) to the negative rail of the breadboard and did the same for the 5V pin by connecting it to the positive rail.

And Then, I connected the servo’s ground and power to the Arduino’s rails and plugged its signal wire into digital pin 10. Setting it up myself really helped me see how the Arduino powers and controls each part of the project.

Next, I connected the Bluetooth device's RX to Arduino, TX's Bluetooth to RX's Arduino, and Bluetooth's Vcc to the positive wire and ground to ground. Setting it up myself helped me understand how the Arduino receives data from Bluetooth to control the project.

Finally, I added LEDs to indicate the different states we are in.

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 circuit Process

Step 1: Preparing the components needed, Here is the list of all the electronic components I will need.

Step 2: Connect the positive and negative wires from the Arduino to the breadboard to set up the power rails.

Step 3: Add the LEDs to indicate the different states we are in.

Step 4: Connect the servo motor’s positive and negative wires to the breadboard power rails, and attach its output pin to digital pin D11 on the Arduino

Step 5: Connect the Bluetooth device's RX to Arduino, TX's Bluetooth to RX's Arduino, and Bluetooth's Vcc to the positive wire and ground to ground

Step 6: Uploading the code into Arduino Uno

Final look

vide.mp4

This Arduino code controls a servo motor and three LEDs (red, green, and orange) based on serial input. It includes the Servo library and defines pin 10 for the red LED, pin 8 for the green LED, and pin 9 for the servo.

In the setup() function, it initializes serial communication at 9600 baud, sets the LED pins as outputs, attaches the servo to pin 11.

The loop() function continuously checks for incoming serial data. If '1' is received, the red LED turns on, the green and orange LEDs turn off, and the servo increases to 80. If '2' is received, the green LED turns on, the red and orange LEDs turn off, and the servo increases to 80, and if '3' is received, the orange LED turns on, the red and green LEDs turn off, and the servo decreases to 80. The serial monitor provides real-time feedback on received commands and actions

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?

For the first time, my Bluetooth device didn't turn on. I was shocked, so my friend suggested that I use his Bluetooth to see if there was something wrong with my Bluetooth. I found out that we must connect first to the main Bluetooth of the phone, and after in the application

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?

At first, my LEDs didn’t work because I accidentally burned the red one by using it without a resistor. Then I ran into coding problems: the code was showing erros, the Bluetooth module wasn’t responding, and the serial monitor wasn’t working as planned. I got stuck, and went back watching again the mideweek and eoweek videos and asked my friend Ali to help me check my wiring and code. I had to stop and learn how to make Bluetooth control and the servo motor work at the same time

when i entered the data, the serial monitor displays many message and it doesn't work as planned

Solution

In the if statement condition, after data I have to write two equals so that Bluetooth understands it, not just one. The second problem was with writing the function Serial.read(). I wrote it incorrectly, not as Serial.read().

Final Project

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

Learning to control electronic devices using Bluetooth for my final project.

WOW!

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

Don't put the Arduino and the power source at the same time; the Arduino will burn. ⚠️

Weekly Digest [OPTIONAL]

Tell us about any other cool things that you've made this week: in the Hands-on activity, tutorial examples, exercises, or any other cool mini-project that you tried out aside from the assignment.

This week felt really special compared to the others. I worked on something I never imagined I could do. It reminded me of the robot cars like Tesla, drone controlled by mobile

Assignment Design Files