Week 8

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?

Tinker CAD

to build and simulate my circuit before making it IRL

Arduino IDE

upload my code to my Arduino

Arduino Bluetooth control

The Arduino Bluetooth Controller Application make to able to remote control your device with Bluetooth Module and Arduino Board.

Arduino UNO

integrated into a variety of electronic projects

LED

emits light when an electric current flows through it

Servo Motor

rotate an object with great precision

330-ohm resistors

limit current

Master / Slave Bluetooth Module (HC-05)

This class 2 Bluetooth module (HC-05) comes programmed with firmware that allows it to pass the output of a serial communications port

Breadboard

for building temporary circuits

Jumper wires

to wire it all up

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?

Started by adding the components I need in my workspace and also available in my electronic kit.
Then connected each component to the breadboard and to specific pins on Arduino.
connected the Servo motor to pin 9 on Arduino.

Thinkercad circuit

Code

This Arduino code controls a servo motor and two LEDs (red and green) based on serial input. It includes the Servo library and defines pin 10 for the red LED, pin 11 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 9, moves it to 90° (neutral), and turns both LEDs off. The loop() function continuously checks for incoming serial data. If '1' is received, the red LED turns on, the green LED turns off, and the servo moves to 150°. If '2' is received, the green LED turns on, the red LED turns off, and the servo moves to 170°. Any other input turns both LEDs off and resets the servo to 90°. The serial monitor provides real-time feedback on received commands and actions.

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?

Second Let's build our circuit

Prepare all the electric circuit components to build the circuit.
Build the circuit as designed on Tinkercad. After powering the circuit, the light are connected in arduino.
Press the button, the circuit is working perfectly.

Finally Let's make it work

video_2025-02-17_16-31-57.mp4

Final Project

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

In the final project, I need to make sure that the sensor is in the right place with right numbers

Overcoming challenges

i use = Instead of > but it didn't work because:

Serial.available() returns the number of bytes in the serial buffer.
If it's greater than 0, it means there is data available to read.
If we used = (e.g., if (Serial.available() = 0)), this would be a syntax error because = is an assignment operator, not a comparison operator.

i miss to put the resistor to the ground

When you are debugging the code, don't search for the error message; try to read the code like you try to identify each function and what the output of this function is. If you do this, you will find the problem and solve it. That's what I do in this problem when I think and ask why and what the difference is between = and > Here I find the answer.

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.