Basketball Hoop Infrared Beam Speaker Arduino

Throw a ball through the loop to play a nice sound.

Electronics:

• DC5V Infrared beam sensor detector detect distance 1m NPN normal close NC output
• 2pcs speaker 3 Watt 8 Ohm single cavity mini speaker
• Arduino Uno
• Breadboard
• 10 male cables

Other:

• Inkscape or Adobe Illustrator for wood carving
• Laser machine or saw (whichever you have at home)
• Wood glue
• Small ball (>=5 cm)

1, I wanted to make a bin at first, but that didn't work with the size of the Arduino so I made a box with a basketball hoop.

2, The hoop was too heavy so I had to switch it out with a stronger one.

3, The song was too long, which kind of ruined the experience. So I cut made it shorter

//star wars theme

//More songs available at https://github.com/robsoncouto/arduino-songs

#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

#define REST      0

// change this to make the song slower or faster

int tempo = 108;

// change this to whichever pin you want to use

int buzzer = 3;

// notes of the melody followed by the duration.

int melody[] = {

  // Dart Vader theme (Imperial March) - Star wars

  // Score available at https://musescore.com/user/202909/scores/1141521

  // The tenor saxophone part was used

  NOTE_AS4,8, NOTE_AS4,8, NOTE_AS4,8,//1

  NOTE_F5,2, NOTE_C6,2,  

};

// sizeof gives the number of bytes, each int value is composed of two bytes (16 bits)

// there are two values per note (pitch and duration), so for each note there are four bytes

int notes = sizeof(melody) / sizeof(melody[0]) / 2;

// this calculates the duration of a whole note in ms

int wholenote = (60000 * 4) / tempo;

int divider = 0, noteDuration = 0;

/*

  IR Break Beam sensor demo!

*/

#define LEDPIN 13

  // Pin 13: Arduino has an LED connected on pin 13

  // Pin 11: Teensy 2.0 has the LED on pin 11

  // Pin  6: Teensy++ 2.0 has the LED on pin 6

  // Pin 13: Teensy 3.0 has the LED on pin 13

#define SENSORPIN 4

// variables will change:

int sensorState = 0, lastState=0;         // variable for reading the pushbutton status

void setup() {

  // initialise the LED pin as an output:

  pinMode(LEDPIN, OUTPUT);      

  // initialise the sensor pin as an input:

  pinMode(SENSORPIN, INPUT);    

  digitalWrite(SENSORPIN, HIGH); // turn on the pullup

  Serial.begin(9600);

}

void loop(){

  // read the state of the pushbutton value:

  sensorState = digitalRead(SENSORPIN);

  // check if the sensor beam is broken

  // if it is, the sensorState is LOW:

  if (sensorState == LOW) {    

    // turn LED on:

    digitalWrite(LEDPIN, HIGH);  

  }

  else {

    // turn LED off:

    digitalWrite(LEDPIN, LOW);

  }

  if (sensorState && !lastState) {

    Serial.println("Unbroken");

  }

  if (!sensorState && lastState) {

    Serial.println("Broken");

    // iterate over the notes of the melody.

  // Remember, the array is twice the number of notes (notes + durations)

  for (int thisNote = 0; thisNote < notes * 2; thisNote = thisNote + 2) {

    // calculates the duration of each note

    divider = melody[thisNote + 1];

    if (divider > 0) {

      // regular note, just proceed

      noteDuration = (wholenote) / divider;

    } else if (divider < 0) {

      // dotted notes are represented with negative durations!!

      noteDuration = (wholenote) / abs(divider);

      noteDuration *= 1.5; // increases the duration in half for dotted notes

    }

    // we only play the note for 90% of the duration, leaving 10% as a pause

    tone(buzzer, melody[thisNote], noteDuration*0.9);

    // Wait for the specified duration before playing the next note.

    delay(noteDuration);

    // stop the waveform generation before the next note.

    noTone(buzzer);

  }

  }

  lastState = sensorState;

}

• Make the shape of the box in Inkscape to cut it out of wood later. Or use a saw. The Arduino with speaker and breadboard have to fit. The cables for the breakbeams have to fit the tube
• Slide the sides and the bottom of the housing into each other with the finger joints. You can glue the tube but nothing else yet.
• Place the Arduino into the housing with the speaking facing the round hole so it can be seen and heard. And the Arduino output in the little square hole so the cable can reach to power up the project.
• Gently move the breakbeam cables through the hole in the top of the box and the tube.
• Glue the tube to the hole in the top of the box.
• Paint the wood in whichever color you want.
• Knot threads of wool to the hoop so it makes for a basketballhoop thread. Search google for instructions.
• Glue the hoop to the tube. Use wood glue.
• Glue the Infrared beams to the bottom of the hoop. Make sure they face each other so they can be read and meassured in code.