Final Project Journal

The main idea of the project is to make an enclosed multifunctional open space ( seat , shading and kids area ) that can be used as : outdoor pergola or as a open area in parks.

inspired by The Medina Haram Piazza Shading

I used external power source (5V) to to had a better performance with servo motors.

and (9V) adaptor to power Arduino.

#include <Servo.h>

Servo servo[4];

int servoPins[] = {9, 10, 11, 12};

int IR[] = {4, 5, 6, 7};

int obj = 0;

const int LDR = A0 ;

int pot = A1;

int angle;

int modeslider = 2;

First I add the servo library to the code, then define the servo pins and Ir sensor pins in array and add the rest of components pins.

void setup() {

Serial.begin(9600);

pinMode(modeslider, INPUT_PULLUP);

pinMode(LDR, INPUT);

for (int i = 0 ; i < 4 ; i++) {

servo[i].attach(i + 9);

servo[i].write(0);

}

}

In void setup section:

• define the pin mode for a slide switch and LDR.

• define the servos in for statement and make servos write 0.

void loop() {

angle = analogRead(pot);

angle = map(angle, 0, 1023, 10, 180);

if (digitalRead (modeslider) == LOW) {

Serial.println("Seating Mode");

for (int i = 0 ; i < 4 ; i++) {

obj = digitalRead(IR[i]);

servos(obj, i);

}

} else {

Serial.println("Manual Mode");

for (int i = 0 ; i < 4 ; i++) {

servo[i].write(angle);

}

}

}

In void loop section:

• define the angle that write in servo on manual mode

• write if else statement to change the modes using the slider switch.

• if slide switch send low signal(Enter in seating mode) else (Enter in manual mode)

void servos(int Reading , int servoPin) {

if (Reading == LOW) {

servo[servoPin].write(180);

Serial.print("object");

Serial.println(servoPin - 9);

} else {

servo[servoPin].write(0);

Serial.print("Empty");

Serial.println(servoPin - 9);

}

}

• I made custom void function to allow me to control each servo with each Ir sensor.

void servos(int Reading , int servoPin) {

if (Reading == LOW) {

servo[servoPin].write(180);

Serial.print("object");

Serial.println(servoPin - 9);

} else {

servo[servoPin].write(0);

Serial.print("Empty");

Serial.println(servoPin - 9);

}

}

• First when I use custom void function my peer Alaa Wahba help me to explain how custom void function work and how I can use it in my project.

while work on mechanism of moving petals my instructor Ahmed Khaled suggested to me to use living hinge to use in my design. so I tried many times to find best living hinge to use.

Add light and music to interact with user to look cooler and funniest for user.