Introduction: Sea Heaven

An estimated 14 billion pounds of trash (most of it plastic) is dumped in the world's oceans every year. Plastic bags and other plastic garbage is thrown into the ocean kill as many as 1 million marine animals and birds in the Pacific Ocean every year. We, humans, are responsible for these actions and are not doing enough to revert this and fight the consequences. Sea Heaven is an interactive installation that gives a voice to those affected by this destruction. They seek help but can’t ask for it, we have to help those animals who suffer and be held accountable for our actions.

Step 1: Parts, Tools, Supplies

Step 2: Circuit Diagram and Code

 * PIR sensor tester
int ledPin = 7;                // choose the pin for the LED
int inputPin = 2;               // choose the input pin (for PIR sensor)
int pirState = LOW;             // we start, assuming no motion detected
int val = 0;                    // variable for reading the pin status
void setup() {
  pinMode(ledPin, OUTPUT);      // declare LED as output
  digitalWrite(ledPin, HIGH);
  pinMode(inputPin, INPUT);     // declare sensor as input
void loop(){
  pirState = digitalRead(inputPin);  // read input value
 // if (val == HIGH) {            // check if the input is HIGH
    if (pirState == HIGH) {
      // we have just turned on
      Serial.println("Motion detected!");
      digitalWrite(ledPin, LOW);  // turn sound ON
      digitalWrite(ledPin, HIGH);  // turn sound ON

      // We only want to print on the output change, not state
      pirState = LOW;
  } else {
    //digitalWrite(ledPin, HIGH); // turn LED OFF
    if (pirState == LOW){
      // we have just turned of
      Serial.println("Motion ended!");
      // We only want to print on the output change, not state
      //pirState = HIGH;

Step 3: Circuit Construction From Prototype to Soldered

Step 4: Form & Material

  • Cut 6 PVC pipes to 7'
  • Cut 8 PVC pipes to 3'
  • Cut 2 PVC pipes to 2'
  • Build structure using PVC fittings
  • Make "walls" out of blue bubble wrap around the structure. You can use tape or staples to close any gaps you have.
  • Cover all of the white spots you want with bubble wrap.
  • Start pasting your trash to the bubble wrap walls with velcro dots (tip: take one velcro dot and paste it to your object, take the other side of the dot and smush it like a sandwich, and then place the sticky side on the bubble wrap wall).
  • Decorate the hallway with trash as you wish, don't forget to cover it as much as you can.
  • Place your circuit on top of the hallway, PIR sensor on whichever side and your speakers facing downwards.

Step 5: Invite Your Friends to Experience This Magical Installation!

Step into a magical world full of trash and suffering sea creatures. At least one piece of trash belongs to you… surprise! We were the cause of this, and now we are responsible to clean up our mess.