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)

Smart Elevator

During the COVID-19 pandemic, touchless solutions have become increasingly important. So I want to make an elevator system that can be controlled using a smartphone instead of pressing buttons.

So The idea is for the user to connect to the elevator via Bluetooth when they enter and control the elevator directly from their phone.

Tool Chain

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

SOFTWARE

AUTODEST TINKERCAD

Simulation Software

Arduino IDE

Arduino Software

COMPONENTS

Arduino Uno

7 Segment

Voltage Regulator 5v(L7805cv)

Servo Motor

Bluetooth Module

Adapter 9v

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?

Thinking about what components make this function and idea (7_Segment, Servo motor, Bluetooth module, voltage regulator 5v)
Searching how to connect these components with an Arduino board.

Coding:
1. Thinking about how I can make the code to perform the idea🤔.
2. I will send Arduino numbers from my phone and if the number:
  - '1' (Automatic Mode): Displays numbers from 9 to 1 with delays, then opens the door.
  - '2': Turns off the display and closes the door.
  - '3': Opens the door.
  - '4': Closes the door.
  - '5' (Manual Mode by using switch case): Cycles through numbers 1 to 9 each time the command is received, then resets the counter.

#include <Servo.h>

Servo myservo;

int OpenDoor = 160;

int ClosedDoor = 20;

int a = 2;

int b = 3;

int c = 4;

int d = 5;

int e = 6;

int f = 7;

int g = 8;

char InComingData = '0';

int counter = 1;

void setup() {

Serial.begin(9600);

myservo.attach(9);

myservo.write(20);

pinMode(a, OUTPUT);

pinMode(b, OUTPUT);

pinMode(c, OUTPUT);

pinMode(d, OUTPUT);

pinMode(e, OUTPUT);

pinMode(f, OUTPUT);

pinMode(g, OUTPUT);

}

void loop() {

while(Serial.available() == 0);

InComingData = Serial.read();

if (InComingData == '1'){ //Automatic mode

Num9();

delay(1000);

Num8();

delay(1000);

Num7();

delay(1000);

Num6();

delay(1000);

Num5();

delay(1000);

Num4();

delay(1000);

Num3();

delay(1000);

Num2();

delay(1000);

Num1();

delay(1000);

myservo.write(OpenDoor);

} else if (InComingData == '2'){

Off();

myservo.write(ClosedDoor);

} else if (InComingData == '3'){

myservo.write(OpenDoor);

} else if (InComingData == '4'){

myservo.write(ClosedDoor);

} else if (InComingData == '5'){

switch(counter){

case 1:{

Num1();

counter++;

break;

}

case 2:{

Num2();

counter++;

break;

}

case 3:{

Num3();

counter++;

break;

}

case 4:{

Num4();

counter++;

break;

}

case 5:{

Num5();

counter++;

break;

}

case 6:{

Num6();

counter++;

break;

}

case 7:{

Num7();

counter++;

break;

}

case 8:{

Num8();

counter++;

break;

}

case 9:{

Num9();

counter = 1;

break;

}

void Num9(){

digitalWrite(2, HIGH);

digitalWrite(3, HIGH);

digitalWrite(4, HIGH);

digitalWrite(5, HIGH);

digitalWrite(6, LOW);

digitalWrite(7, HIGH);

digitalWrite(8, HIGH);

}

void Num8(){

digitalWrite(2, HIGH);

digitalWrite(3, HIGH);

digitalWrite(4, HIGH);

digitalWrite(5, HIGH);

digitalWrite(6, HIGH);

digitalWrite(7, HIGH);

digitalWrite(8, HIGH);

}

void Num7(){

digitalWrite(2, HIGH);

digitalWrite(3, HIGH);

digitalWrite(4, HIGH);

digitalWrite(5, LOW);

digitalWrite(6, LOW);

digitalWrite(7, LOW);

digitalWrite(8, LOW);

}

void Num6(){

digitalWrite(2, HIGH);

digitalWrite(3, LOW);

digitalWrite(4, HIGH);

digitalWrite(5, HIGH);

digitalWrite(6, HIGH);

digitalWrite(7, HIGH);

digitalWrite(8, HIGH);

}

void Num5(){

digitalWrite(2, HIGH);

digitalWrite(3, LOW);

digitalWrite(4, HIGH);

digitalWrite(5, HIGH);

digitalWrite(6, LOW);

digitalWrite(7, HIGH);

digitalWrite(8, HIGH);

}

void Num4(){

digitalWrite(2, LOW);

digitalWrite(3, HIGH);

digitalWrite(4, HIGH);

digitalWrite(5, LOW);

digitalWrite(6, LOW);

digitalWrite(7, HIGH);

digitalWrite(8, HIGH);

}

void Num3(){

digitalWrite(2, HIGH);

digitalWrite(3, HIGH);

digitalWrite(4, HIGH);

digitalWrite(5, HIGH);

digitalWrite(6, LOW);

digitalWrite(7, LOW);

digitalWrite(8, HIGH);

}

void Num2(){

digitalWrite(2, HIGH);

digitalWrite(3, HIGH);

digitalWrite(4, LOW);

digitalWrite(5, HIGH);

digitalWrite(6, HIGH);

digitalWrite(7, LOW);

digitalWrite(8, HIGH);

}

void Num1(){

digitalWrite(2, LOW);

digitalWrite(3, HIGH);

digitalWrite(4, HIGH);

digitalWrite(5, LOW);

digitalWrite(6, LOW);

digitalWrite(7, LOW);

digitalWrite(8, LOW);

}

void Off(){

digitalWrite(2, LOW);

digitalWrite(3, LOW);

digitalWrite(4, LOW);

digitalWrite(5, LOW);

digitalWrite(6, LOW);

digitalWrite(7, LOW);

digitalWrite(8, LOW);

}

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?

First, testing each component to make sure that all works well.
Adapter 9v --> connecting the +ve & -ve to positive and negative lines on the breadboard.
Voltage Regulator :

INPUT terminal (left) --> to +ve line on breadboard.
GND terminal (middle) --> to -ve line on breadboard.
OUTPUT terminal (Right) --> to the VCC of the Servo.

Arduino :

V_IN --> to +ve line on breadboard.
GND --> to -ve line on breadboard.

Servo Motor :

VCC --> to the output of the voltage regulator.
GND --> to the -ve line on the breadboard.
Signal --> to PIN 9 on Arduino.

Bluetooth Module :

VCC --> to the 5v PIN on Arduino.
GND --> to the -ve line on the breadboard.
TX --> to RX on Arduino (PIN 0)
RX --> to TX on Arduino (PIN 1)

7_Segment --> Every terminal to digital PIN on Arduino from PIN 2: 8 as shown in the figure.
Finally, connected the Arduino Jake to the laptop, and from Arduino IDE I chose the correct port and then uploaded the code on Arduino.

==> HINT: Don't forget to remove the RX &TX while uploading the code.

Tinker CAD Circuit

WhatsApp Video 2024-09-02 at 14.20.36_b66b288b.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)

I encountered several challenges with the code, where the seven-segment display only showed the number 1.

Solution

To troubleshoot, I used the Serial Monitor to print debug statements within each if function to identify the issue. I discovered that the counter was resetting to 1 with each iteration, which occurred because I hadn't initialized the counter outside the void loop.

Final Project

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

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.

Assignment Design Files

Elevator.INO