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)
I will Complete till the Nice to have features in my final Project idea. I will control the LCD screen and a servo motor using Android GUI , it will be a simulation to the last part in my final project. The idea of the final project is a solar tracker which tracks the sunlight to improve the efficiency of solar panels. In this week , I am going to control this tracker using a mobile app. I will control the direction of the panel using the servo motor , and the LCD display will help in knowing the direction of this servo (0 or 180 degree).
Tool Chain
Which software/machines/materials did you use in the assignment? Why?
Circuit Simulation :
Software: Tinker CAD / Fritzing
Physical Circuit :
1 Breadboard
1 Servo Motor
Jumpers
Arduino UNO
1 LCD display with I2C module
Bluetooth module HC-05
Software: Arduino IDE
Android GUI : Arduino Bluetooth controller.
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?
Screen Recording 2024-09-17 221429.mp4
Steps for Wiring (I have used Tinker Cad to make the wiring diagram as follows )
LCD (i2c) Connections: Output
GND (LCD) → GND (Arduino)
VCC (LCD) → 5V (Arduino)
SDA (LCD) → A4 (Arduino)
SCL (LCD) → A5 (Arduino)
Servo Motor Connections: Output
Red Wire (Servo VCC) → 5V (Arduino)
Brown Wire (Servo GND) → GND (Arduino)
Orange Wire (Servo Signal) → Pin 9 (Arduino)
Bluetooth Module Connections:
Vcc --> 5V
GND--> ground of the arduino
RX---> TX of the arduino pin (1)
TX--->RX of the arduino pin (0)
Steps for the GUI Setup :
I used Arduino Bluetooth controller to communicate between the Arduino and the Bluetooth module .
After connecting the circuit , choose to connect with HC -05 and pair using the passkey 0000 .
after that choose control LED or lamp using a button , here we are going to use this button to control the LCD and the servo Motor .
When the button is pressed , a 0 or 1 is sent through the serial portal , so we have to tailor the condition in Arduino IDE to be if 0 or 1 received .
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?
WhatsApp Video 2024-09-19 at 18.12.09_17bfd236.mp4Pseudocode for the project :
The code will be simple , it will contain one if condition to check the serial input ,if it is 0 print Move 180 degree and move the servo , if it is 1 get back to zero degree and print it.
Set up all the necessary libraries and variables, like the Servo and LiquidCrystal_I2C.
Get the LCD ready.
incomingdata will be used to store the information coming from the serial monitor.
Void Setup:
Turn on the LCD display, making sure it’s set up with 16 columns and 2 rows.
Start serial communication with the computer, so we can send commands to the Arduino later.
Attach the servo motor to pin 9 and define its movement range.
Void Loop :
The Arduino will keep waiting for you to send a command from the serial monitor.
Once a command arrives:
If the command is '0':
The LCD will display "Move 180 degree".
The servo will rotate all the way to 180° (to one side).
Then it will pause for a second.
If the command is ''1":
The LCD will display "Back to 0 degree".
The servo will return to 0° (its starting position).
Again, it will pause for a second.
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)
The Main problem was in Tinkercad simulation as the Bluetooth module is not found on it. So I used the serial monitor to test my code on Tinkercad and make sure that all works . I used the Keyboard to enter the inputs and it worked and the simulation was smooth .
