How to make your own DIY water sensor!

1const int Buzzer = 5; //Buzzer pin
2const int led = 6; //Led pin
3const   int watersensor = 7; //Water Sensor pin
4int watersensorstate = 0; //State of   the water sensor
5// setup (intializes everthings)
6void setup() {
7pinMode(led,   OUTPUT); //set the Led as an output
8pinMode(Buzzer, OUTPUT); //set the buzzer   as an output as well
9pinMode(watersensor, INPUT); //set the water sensor as an   input
10Serial.begin(9600);//Start the serial connection
11}
12//loop (Does the   actual program)
13void loop() {
14 watersensorstate = digitalRead(watersensor);   
15 //Set the water sensor state as either high depending on the water sensor
16   //if it senses water it will turn on the led, pulse the buzzer, and say "Water   Detected"
17 if(watersensorstate==1){
18  digitalWrite(led, HIGH);
19  digitalWrite(Buzzer,   HIGH);
20  delay(150);
21  digitalWrite(Buzzer, LOW);
22  delay(150);
23  Serial.println("Water   Detected");
24  }
25  //otherwise it will do nothing and say "No water Detected"
26   else{
27    digitalWrite(led, LOW);
28    digitalWrite(Buzzer, LOW);
29    Serial.println("No   water Detected");
30    }
31}
32