Icon Concept (For Designer)

Ek Water Tank (paani ki tanki) bani ho jo upar se “Overflow” (chalak) rahi hai. Paani ki boondein gir rahi hain aur side mein Red Siren baj raha hai.

What It Does (Yeh Kya Karta Hai?)

Gharon mein aksar motor chalti reh jati hai aur paani ki tanki bhar kar behne lagti hai. Yeh project jaise hi paani sensor ko chuu (touch) karega, Alarm baja dega taake aap motor band kar sakein.

Components Required

• Microcontroller: Arduino Uno
• Water Level Sensor (Red rectangular plate)
• Buzzer
• LED (Red)
• Jumper Wires

Wiring (Taarein Jorna)

1. Water Sensor (3 Pins)

• (+) Positive: → Arduino 5V
• (-) Negative: → Arduino GND
• (S) Signal: → Arduino A0

2. Buzzer:

• Positive (+) Lambi taang → Arduino Pin 10
• Negative (-) Choti taang → Arduino GND

3. LED:

• Lambi Taang (+) ko daalein → Pin 13 mein
• Choti Taang (-) ko daalein → GND mein (jo Pin 13 ke bilkul barabar mein hai).

Code

// Project 4: Water Tank Overflow Alarm
// PlzPapa Robotic Kit

#define WATER_SENSOR A0
#define BUZZER 10
#define LED 13

void setup() {
  pinMode(BUZZER, OUTPUT);
  pinMode(LED, OUTPUT);
  Serial.begin(9600);
}

void loop() {
  // Sensor se paani ki reading lo
  int waterLevel = analogRead(WATER_SENSOR);
  
  Serial.print("Water Level: ");
  Serial.println(waterLevel);

  // LOGIC: Jab paani sensor ko touch karega, value badh jayegi (usually > 300)
  if (waterLevel > 300) {
    digitalWrite(BUZZER, HIGH); // Alarm Bajao
    digitalWrite(LED, HIGH);    // Light Jalao
    delay(200);                 // Tez awaaz
    digitalWrite(BUZZER, LOW);
    digitalWrite(LED, LOW);
    delay(200);
  } else {
    // Agar paani nahi hai (Sookha hai)
    digitalWrite(BUZZER, LOW);
    digitalWrite(LED, LOW);
  }
}