The Hooray Machine

Trying to find a way to surprise your friend on their birthday? Searching for a creative way to celebrate Christmas? Look no further!

BeginnerShowcase (no instructions)1 hour2,160

Things used in this project

Hardware components

Arduino UNO

Key part of project

Breadboard (generic)

SparkFun Pushbutton switch 12mm

Adafruit RGB Backlight LCD - 16x2

RGB Diffused Common Cathode

Buzzer

Resistor 10k ohm

Resistor 330 ohm

Jumper wires (generic)

Single Turn Potentiometer- 10k ohms

Story

The Hooray Machine

I created the “Hooray” machine because I wanted to surprise my friends whenever it was their birthday or Christmas. Originally, I was going to make it a laser tripwire birthday surprise, but I didn’t have enough room to add a laser. Then I thought how fun it would be to simply click a button, and play a song, with a flashing lightbulb. I even added an LCD screen to add onto the fun. That was when the “Hooray” machine came to mind. It’s a machine that plays both “Happy Birthday” and “We Wish You a Merry Christmas” at the click of a button. An LCD screen shows the words of the song as it plays and an RGB LED flashes different colors synchronized to the song. The song is played by a piezo buzzer.

Code

Code

#include <LiquidCrystal.h>
LiquidCrystal lcd(12,11,5,4,3,2);
int btn;
int btn2;
int d4 = 294;
int e4 = 330;
int g4 = 392;
int gflat4 = 370;
int a4 = 440;
int d5 = 587;
int b4 = 494;
int c5 = 523;
int g5 = 784;
int e5 = 659;
int f5 = 698;

void setup()
{
  lcd.begin(16, 2);

  lcd.clear();
  
  lcd.print("Hello World");
  delay(1000);
  lcd.clear();
  delay(500);
  pinMode(6, OUTPUT); //Blue
  pinMode(9, OUTPUT); //Green
  pinMode(10, OUTPUT); //Red
  pinMode(8, INPUT); //button 1
  pinMode(13, INPUT); //button 2
  pinMode(7, OUTPUT); //piezo

  analogWrite(6, 0);
  analogWrite(9, 0);
  analogWrite(10, 0);
  lcd.print("Button 1");
  delay(2000);
  lcd.clear();
  delay(500);
  lcd.print("Birthday");
  delay(2000);
  lcd.clear();
  delay(1000);
  lcd.print("Button 2");
  delay(2000);
  lcd.clear();
  delay(500);
  lcd.print("Christmas");
  delay(2000);
  lcd.clear();
  delay(1000);
  
  
}


void loop()
{
 
  btn2 = digitalRead(13);
  if(btn2 == LOW)
  {
    lcd.print("Happy Birthday");
    delay(1000);
    lcd.clear();
    lcd.print("Expect...");
    delay(1000);
    lcd.clear();
    lcd.print("The Unexpected");
    delay(2000);
    lcd.clear();
    lcd.print("Happy");
    tone(7, d4);
    analogWrite(10, 255);
    delay(250); //eigth note
    noTone(7);
    analogWrite(10, 0);
    delay(100);
    tone(7, d4); 
    analogWrite(10, 255);
    delay(125);
    lcd.clear();
    lcd.print("Birth");
    tone(7, e4);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(500);
    lcd.print("day");
    tone(7, d4);
    analogWrite(9, 0);
    analogWrite(6, 255);
    delay(500);
    lcd.clear();
    lcd.print("To");
    tone(7, g4);
    analogWrite(6, 0);
    analogWrite(10, 255);
    delay(500);
    lcd.print(" you!");
    tone(7, gflat4);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(1000);
    noTone(7);
    lcd.clear();
    delay(500);
    analogWrite(9, 0);
    lcd.clear();
    lcd.print("Happy");
    tone(7, d4);
    analogWrite(6, 255);
    delay(250); //eigth note
    noTone(7);
    analogWrite(6, 0);
    delay(100);
    tone(7, d4); 
    analogWrite(10, 255);
    delay(125);
    lcd.clear();
    lcd.print("Birth");
    tone(7, e4);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(500);
    lcd.print("day");
    tone(7, d4);
    analogWrite(9, 0);
    analogWrite(6, 255);
    delay(500);
    lcd.clear();
    lcd.print("To");
    tone(7, a4);
    analogWrite(6, 0);
    analogWrite(10, 255);
    delay(500);
    lcd.print(" you!");
    tone(7, g4);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(1000);
    noTone(7);
    lcd.clear();
    analogWrite(9, 0);
    delay(500);
    lcd.print("Happy");
    tone(7, d4);
    analogWrite(6, 255);
    delay(250); //eigth note
    noTone(7);
    analogWrite(6, 0);
    analogWrite(10, 255);
    delay(100);
    tone(7, d4); 
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(125);
    lcd.clear();
    tone(7, d5);
    analogWrite(9, 0);
    analogWrite(6, 255);
    lcd.print("Birth");
    delay(500);
    lcd.print("day");
    tone(7, b4);
    analogWrite(6, 0);
    analogWrite(10, 255);
    delay(500);
    lcd.clear();
    lcd.print("Dear");
    tone(7, g4);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(500);
    noTone(7);
    analogWrite(9, 0);
    delay(100);
    lcd.print(" Some");
    tone(7, g4);
    analogWrite(6, 255);
    delay(500);
    lcd.print("one");
    tone(7, gflat4);
    analogWrite(6, 0);
    analogWrite(10, 255);
    delay(1000);
    lcd.clear();
    noTone(7);
    analogWrite(10, 0);
    delay(500);
    lcd.print("Happy");
    tone(7, c5);
    analogWrite(9, 255);
    delay(500);
    noTone(7);
    analogWrite(9, 0);
    delay(100);
    tone(7, c5);
    analogWrite(6, 255);
    delay(250);
    lcd.clear();
    lcd.print("Birth");
    tone(7, b4);
    analogWrite(6, 0);
    analogWrite(10, 255);
    delay(500);
    lcd.print("day");
    tone(7, g4);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(1000);
    lcd.clear();
    lcd.print("To");
    tone(7, a4);
    analogWrite(9, 0);
    analogWrite(10, 255);
    delay(500);
    lcd.print(".");
    delay(500);
    lcd.print(".");
    delay(500);
    lcd.print(".");
    delay(500);
    tone(7, g5);
    lcd.print(" YOU!");
    analogWrite(10, 0);
    analogWrite(6, 255);
    delay(250);
    noTone(7);
    analogWrite(6, 0);
    lcd.clear();
  }
  
  btn = digitalRead(8);
  if(btn == LOW)
  {
    lcd.print("Merry Christmas!");
    delay(1000);
    lcd.clear();
    lcd.print("We");
    tone(7, g4);
    analogWrite(9, 255);
    delay(500);
    lcd.print(" wish");
    tone(7, c5);
    analogWrite(9, 0);
    analogWrite(10, 255);
    delay(500);
    noTone(7);
    analogWrite(10, 0);
    delay(50);
    lcd.print(" you");
    tone(7, c5);
    analogWrite(9, 255);
    delay(250);
    lcd.clear();
    lcd.print("A");
    tone(7, d5);
    analogWrite(9, 0);
    analogWrite(10, 255);
    delay(250);
    lcd.print(" Mer");
    tone(7, c5);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(250);
    lcd.print("ry");
    tone(7, b4);
    analogWrite(9, 0);
    analogWrite(10, 255);
    delay(250);
    lcd.clear();
    lcd.print("Christ");
    tone(7, a4);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(250);
    noTone(7);
    analogWrite(9, 0);
    delay(250);
    tone(7, a4);
    analogWrite(10, 255);
    lcd.print("mas");
    delay(250);
    noTone(7);
    analogWrite(10, 0);
    delay(250);
    lcd.clear();
    lcd.print("We");
    tone(7, a4);
    analogWrite(9, 255); 
    delay(500);
    lcd.print(" wish");
    tone(7, d5);
    analogWrite(9, 0);
    analogWrite(10, 255);
    delay(500);
    noTone(7);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(50);
    lcd.print(" you");
    tone(7, d5);
    analogWrite(9, 0);
    analogWrite(10, 255);
    delay(250);
    lcd.clear();
    lcd.print("A");
    tone(7, e5);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(250);
    lcd.print(" Mer");
    tone(7, d5);
    analogWrite(9, 0);
    analogWrite(10, 255);
    delay(250);
    lcd.print("ry");
    tone(7, c5);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(250);
    lcd.clear();
    lcd.print("Christ");
    tone(7, b4);
    analogWrite(9, 0);
    analogWrite(10, 255);
    delay(250);
    noTone(7);
    analogWrite(10, 0);
    delay(250);
    tone(7, g4);
    analogWrite(9, 255);
    lcd.print("mas");
    delay(250);
    noTone(7);
    analogWrite(9, 0);
    delay(250);
    lcd.clear();
    lcd.print("We");
    tone(7, b4);
    analogWrite(10, 255);
    delay(500);
    lcd.print(" wish");
    tone(7, e5);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(500);
    noTone(7);
    analogWrite(9, 0);
    delay(50);
    lcd.print(" you");
    tone(7, e5);
    analogWrite(10, 255);
    delay(250);
    lcd.clear();
    lcd.print("A");
    tone(7, f5);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(250);
    lcd.print(" Mer");
    tone(7, e5);
    analogWrite(9, 0);
    analogWrite(10, 255);
    delay(250);
    lcd.print("ry");
    tone(7, d5);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(250);
    lcd.clear();
    lcd.print("Christ");
    tone(7, c5);
    analogWrite(9, 0);
    analogWrite(10, 255);
    delay(250);
    noTone(7);
    analogWrite(10, 0);
    delay(250);
    tone(7, a4);
    analogWrite(9, 255);
    lcd.print("mas");
    delay(250);
    noTone(7);
    analogWrite(9, 0);
    delay(250);
    lcd.clear();
    lcd.print("And");
    tone(7, g4);
    analogWrite(10, 255);
    delay(250);
    noTone(7);
    analogWrite(10, 0);
    delay(50);
    lcd.print(" a");
    tone(7, g4);
    analogWrite(9, 255);
    delay(250);
    lcd.clear();
    lcd.print("Hap");
    tone(7, a4);
    analogWrite(9, 0);
    analogWrite(10, 255);
    delay(500);
    lcd.print("py");
    tone(7, d5);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(500);
    lcd.clear();
    lcd.print("New");
    tone(7, b4);
    analogWrite(9, 0);
    analogWrite(10, 255);
    delay(500);
    lcd.print(" Year");
    tone(7, c5);
    analogWrite(10, 0);
    analogWrite(9, 255);
    delay(500);
    noTone(7);
    analogWrite(9, 0);
    lcd.clear();
  }
}