THE COFFIN TREAT

This project aims to create a "mini escape room" set on Halloween. To do this, a system using exclusively a combination of any of the elements that we learned has been designed and implemented.

The game consists of solving the different tests following the instructions given and also, by using the sensors and buttons that will be found to go on in order to open the last door and be able to get the reward.

Through this project, we want to learn and interpret the world that Arduino forms so, in a future, be able to carry out all kinds of prototypes with it.

Are you ready to get into the Coffin Treat game?

Step 1: Materials

Also used:

- Wood

- Hinges

- Plastic spiders and cobwebs to decorate the coffin

- Painting

- Saw

- Soldering iron

- File

Step 2: Scheme of Electrical Connections

Step 3: Flow Diagram

The flow diagram is the following:

Step 4: Building the Project

Step 5: The Code

The code is the following:

#include
#define OCTAVE_OFFSET 0

//MUSICA COFFIN DANCE

#define NOTE_B0 31

#define NOTE_C1 33

#define NOTE_CS1 35

#define NOTE_D1 37

#define NOTE_DS1 39

#define NOTE_E1 41

#define NOTE_F1 44

#define NOTE_FS1 46

#define NOTE_G1 49

#define NOTE_GS1 52

#define NOTE_A1 55

#define NOTE_AS1 58

#define NOTE_B1 62

#define NOTE_C2 65

#define NOTE_CS2 69

#define NOTE_D2 73

#define NOTE_DS2 78

#define NOTE_E2 82

#define NOTE_F2 87

#define NOTE_FS2 93

#define NOTE_G2 98

#define NOTE_GS2 104

#define NOTE_A2 110

#define NOTE_AS2 117

#define NOTE_B2 123

#define NOTE_C3 131

#define NOTE_CS3 139

#define NOTE_D3 147

#define NOTE_DS3 156

#define NOTE_E3 165

#define NOTE_F3 175

#define NOTE_FS3 185

#define NOTE_G3 196

#define NOTE_GS3 208

#define NOTE_A3 220

#define NOTE_AS3 233

#define NOTE_B3 247

#define NOTE_C4 262

#define NOTE_CS4 277

#define NOTE_D4 294

#define NOTE_DS4 311

#define NOTE_E4 330

#define NOTE_F4 349

#define NOTE_FS4 370

#define NOTE_G4 392

#define NOTE_GS4 415

#define NOTE_A4 440

#define NOTE_AS4 466

#define NOTE_B4 494

#define NOTE_C5 523

#define NOTE_CS5 554

#define NOTE_D5 587

#define NOTE_DS5 622

#define NOTE_E5 659

#define NOTE_F5 698

#define NOTE_FS5 740

#define NOTE_G5 784

#define NOTE_GS5 831

#define NOTE_A5 880

#define NOTE_AS5 932

#define NOTE_B5 988

#define NOTE_C6 1047

#define NOTE_CS6 1109

#define NOTE_D6 1175

#define NOTE_DS6 1245

#define NOTE_E6 1319

#define NOTE_F6 1397

#define NOTE_FS6 1480

#define NOTE_G6 1568

#define NOTE_GS6 1661

#define NOTE_A6 1760

#define NOTE_AS6 1865

#define NOTE_B6 1976

#define NOTE_C7 2093

#define NOTE_CS7 2217

#define NOTE_D7 2349

#define NOTE_DS7 2489

#define NOTE_E7 2637

#define NOTE_F7 2794

#define NOTE_FS7 2960

#define NOTE_G7 3136

#define NOTE_GS7 3322

#define NOTE_A7 3520

#define NOTE_AS7 3729

#define NOTE_B7 3951

#define NOTE_C8 4186

#define NOTE_CS8 4435

#define NOTE_D8 4699

#define NOTE_DS8 4978"

int melody[] = { NOTE_A4, 0, NOTE_A4, NOTE_A4,

NOTE_C5, 0, NOTE_AS4, NOTE_A4,

NOTE_G4,0, NOTE_G4, NOTE_AS5, NOTE_A5, NOTE_AS5,

NOTE_A5, NOTE_AS5, NOTE_G4,0, NOTE_G4, NOTE_AS5, NOTE_A5, NOTE_AS5, NOTE_A5, NOTE_AS5,

NOTE_AS4, NOTE_AS4, NOTE_AS4, NOTE_AS4,

NOTE_AS4, NOTE_AS4, NOTE_AS4, NOTE_AS4,

NOTE_D5, NOTE_D5, NOTE_D5, NOTE_D5,

NOTE_C5, NOTE_C5, NOTE_C5, NOTE_C5,

NOTE_F5, NOTE_F5, NOTE_F5, NOTE_F5,

NOTE_G5, NOTE_G5, NOTE_G5, NOTE_G5,

NOTE_G5, NOTE_G5, NOTE_G5, NOTE_G5,

NOTE_G5, NOTE_G5, NOTE_G5, NOTE_G5,

NOTE_C5, NOTE_AS4, NOTE_A4, NOTE_F4,

NOTE_G4, 0, NOTE_G4, NOTE_D5,

NOTE_C5, 0, NOTE_AS4, 0,

NOTE_A4, 0, NOTE_A4, NOTE_A4,

NOTE_C5, 0, NOTE_AS4, NOTE_A4,

NOTE_G4,0, NOTE_G4, NOTE_AS5,

NOTE_A5, NOTE_AS5, NOTE_A5, NOTE_AS5,

NOTE_G4,0, NOTE_G4, NOTE_AS5,

NOTE_A5, NOTE_AS5, NOTE_A5, NOTE_AS5,

NOTE_G4, 0, NOTE_G4, NOTE_D5,

NOTE_C5, 0, NOTE_AS4, 0, NOTE_A4,

NOTE_G4,0, NOTE_G4, NOTE_AS5,

NOTE_A5, NOTE_AS5, NOTE_A5, NOTE_AS5,

NOTE_G4,0, NOTE_G4, NOTE_AS5,

NOTE_A5, NOTE_AS5, NOTE_A5, NOTE_AS5

};

int noteDurations[] = { 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, 4,4,4,4, };

Servo myservo2;

Servo myservo3;

Servo myservo1;

int piezoPin = A3;

int state = 0;

//CODI PROVA 1

int sPins[] = {10, 1, 2, 3};

int valPROVA1 = 0; //grausº servo1

int ledPin1 = 5;

int wrongLedPin = 4;

int pos[] = {0, 0, 0, 0};

int goalPos[] = {1, 0, 1, 1};

//CODI PROVA 3

int ledPin3 = 12;

int forcePin = 0;

int forceReading;

int valPROVA3 = 0; //grausº servo3

int NUMERO = 90; //Valor de pressió sensor tàctil

//Pel potenciometre (Prova 3)

int potenciometre = A2;

int inputval = 0;

int numMIN = 0; //Valor minim del potenciometre perque s'encengui el LED

int numMAX = 700; //Valor maxim del potenciometre perque s'encengui el LED

//CODI PROVA 2

int valPROVA2 = 0; //grausº servo2

int ledPin2 = 11;

int fot = A0;

int x=0;

int llum = 20;

const int echoPin = 6; //Ultrasonic sensor

const int trigPin = 7; //Ultrasonic sensor

int inches = 0;

boolean ledState = false;

int cm = 0;

long readUltrasonicDistance(int trigPin, int echoPin) {

pinMode(trigPin, OUTPUT); // Clear the trigger

digitalWrite(trigPin, LOW);

delayMicroseconds(2);

// Sets the trigger pin to HIGH state for 10 microseconds

digitalWrite(trigPin, HIGH);

delayMicroseconds(10);

digitalWrite(trigPin, LOW);

pinMode(echoPin, INPUT);

// Reads the echo pin, and returns the sound wave travel time in microseconds

return pulseIn(echoPin, HIGH); }

//Prova 1 botons

boolean array_cmp(int *a, int *b, int len_a, int len_b) {

int n;

if (len_a != len_b) return false;

for (n = 0; n < len_a; n++) if (a[n] != b[n])

return false; return true; }

void setup() {

//CODI PROVA 1

myservo1.attach(13);

myservo1.write (-1);

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

pinMode(sPins[i], INPUT); }

pinMode(ledPin1, OUTPUT);

pinMode(wrongLedPin, OUTPUT);

myservo1.write(0);

//CODI PROVA 2

pinMode(ledPin2, OUTPUT);

pinMode(trigPin, OUTPUT);

pinMode(echoPin, INPUT);

myservo2.attach(9);

Serial.begin(9600);

// myservo2.write(0);

//CODI PROVA 3

pinMode(ledPin3, OUTPUT);

myservo3.attach(8);

Serial.begin(9600);

myservo3.write(0);

}

void loop() {

//CODI PROVA 1

// Checking and setting switch positions

// Check if combo is correct

if (state == 0) {

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

int estatbutons = digitalRead(sPins[i]);

Serial.println(estatbutons);

if (estatbutons == HIGH) {

pos[i] = 1;

} else if (estatbutons == LOW) {

pos[i] = 0; } }

if (array_cmp(pos, goalPos, 4, 4)) {

digitalWrite(ledPin1, HIGH);

digitalWrite(wrongLedPin, LOW);

myservo1.write(90);

state = 1; //Passa a la seguent prova

} else {

digitalWrite(wrongLedPin, HIGH);

} delay(15);

} else if (state == 1) { //"IF" PROVA 2

//CODI PROVA 2

x = analogRead(fot);

Serial.println("The light you're emitting is ");

Serial.print(x);

delay (300);

// measure the ping time in cm

cm = 0.01723 * readUltrasonicDistance(trigPin, echoPin);

// convert to inches by dividing by 2.54

inches = (cm / 2.54);

//Serial.print(inches);

//Serial.print("in, ");

Serial.print("You're at ");

Serial.println(cm);

Serial.print("cm");

if ((x > llum) && (inches > 10 && inches < 25)) {

digitalWrite(ledPin2, HIGH);

state = 2;

myservo2.write(180);

delay(50); } }

//"IF" PROVA 3

else if (state == 2) {

//CODI PROVA 3

forceReading = analogRead(forcePin);

Serial.println("The force you're doing is ");

Serial.print(forceReading);

delay(500);

//Pel potenciometre (Prova 3)

//Serial.println(inputval);

inputval = analogRead(potenciometre);

Serial.println("The intensity is ");

Serial.print(forceReading);

if ((forceReading >= NUMERO) && (inputval > numMIN && inputval < numMAX)) {

digitalWrite(ledPin3, HIGH);

valPROVA3 = 180;

delay(50);

Serial.println(state);

myservo3.write(180);

delay(50);

if (digitalRead(ledPin1) && digitalRead(ledPin2) && digitalRead(ledPin3)) {

delay(2000);

for (int thisNote = 0; thisNote < 112; thisNote++) {

int noteDuration = 750 / noteDurations[thisNote];

tone(piezoPin, melody[thisNote], noteDuration);

int pauseBetweenNotes = noteDuration * 1.30;

delay(pauseBetweenNotes);

noTone(piezoPin); } } } }

}

Step 6: Conclusion

In this project it has been possible to fulfill the objective that was proposed at the beginning, to make a "mini escape room" set on Halloween. For this, all the knowledge acquired from Arduino so far has been applied.

During the process, different problems have arisen in programming. One of them has been to achieve test 1 to work correctly, it was difficult to perform an action if 3 specific buttons were pressed at the same time. The problem that has been most difficult to solve has been the join of the 3 tests because, if the previous one was not done correctly, it was not able to go to the next test.

It should be added that designing the circuit on the Tinkercad platform, it is much easier than expressing it afterwards in the physical prototype, as many external factors influence it. It must be said that programming by an engineer has been shown to be very important in order to be able to develop and resolve situations.

Finally, with this project it has been seen that products can be manufactured with this type of technology and commercialized. In addition, it is thought that there is now much more knowledge of Arduino than at the beginning of this project, since with so many problems in programming, the error of each one has been perfectly understood and have been efficiently solved.

Done by: Meritxell, Marta & Pau