Shower Timer

This is a great tool to reduce water waste. The second someone uses the shower it will start a timer and in the end, an alarm will sound.

Mar 28, 2020

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ecofreindly

Components and supplies

Resistor 10k ohm

Buzzer

Jumper wires (generic)

Arduino UNO

Project description

Code

c_cpp

This starts a timer for 5 minutes when the two plates sense water.

1const int buttonPin = 2;
2const int alarm = 4;
3int buttonState =  0;
4
5
6
7void setup() {
8  
9  pinMode(buttonPin, INPUT);
10  pinMode(alarm,  OUTPUT);
11  Serial.begin(9600);
12  Serial.print("Hi");
13}
14
15void loop()  {
16
17
18  buttonState = digitalRead(buttonPin);
19
20  if(buttonState ==  HIGH){
21Serial.print("alarm");
22tone(alarm, 200);
23delay(2000);
24noTone(alarm);
25
26  delay(30000);
27  delay(30000);
28  delay(30000);
29  delay(30000);
30  delay(30000);
31  delay(30000);
32  delay(30000);
33  delay(30000);
34  delay(30000);
35  delay(30000);
36
37
38for  (int i = 0; i <= 3; i++) {
39  tone(alarm, 100);
40  delay(1500);
41  tone(alarm,  200);
42  delay(1500);
43}
44
45noTone(alarm);
46
47  
48    
49   }
50   else{
51    
52    }
53
54}

const int buttonPin = 2;
const int alarm = 4;
int buttonState =  0;



void setup() {
  
  pinMode(buttonPin, INPUT);
  pinMode(alarm,  OUTPUT);
  Serial.begin(9600);
  Serial.print("Hi");
}

void loop()  {


  buttonState = digitalRead(buttonPin);

  if(buttonState ==  HIGH){
Serial.print("alarm");
tone(alarm, 200);
delay(2000);
noTone(alarm);

  delay(30000);
  delay(30000);
  delay(30000);
  delay(30000);
  delay(30000);
  delay(30000);
  delay(30000);
  delay(30000);
  delay(30000);
  delay(30000);


for  (int i = 0; i <= 3; i++) {
  tone(alarm, 100);
  delay(1500);
  tone(alarm,  200);
  delay(1500);
}

noTone(alarm);

  
    
   }
   else{
    
    }

}

Downloadable files

Scamatics

The two wires on opposite sides of the switch are the two connecting plates.

Scamatics

The two wires on opposite sides of the switch are the two connecting plates.

Scamatics

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josephcassio

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