Icon Concept (For Designer)

Ek Ambulance bani ho jo speed mein ja rahi hai. Upar Red aur Blue lights flash kar rahi hain aur siren se Sound Waves (awaaz ki lehrein) nikal rahi hain.

What It Does (Yeh Kya Karta Hai?)

Jab Ambulance road par chalti hai, toh uski lights aur siren ek khaas rhythm (taal) mein chalte hain.

• Jab Red Light jalti hai, Siren ki awaaz OONCHI (High Pitch) hoti hai.
• Jab Blue Light jalti hai, Siren ki awaaz BHARI (Low Pitch) hoti hai. Yeh project wohi same effect banayega.

Components Required

• Microcontroller: Arduino Uno
• Breadboard
• 1 Red LED
• 1 Blue LED (Agar Blue na ho to Green use karein)
• 1 Buzzer
• Jumper Wires

Wiring (Taarein Jorna)

Common GND: Breadboard ki Blue line ko Arduino GND se jod dein.

1. Red LED:

• Lambi Taang (+) → Pin 12.
• Choti Taang (-) → GND line.

2. Blue LED:

• Lambi Taang (+) → Pin 11.
• Choti Taang (-) → GND line.

3. Buzzer:

• Lambi Taang (+) → Pin 10.
• Choti Taang (-) → GND line.

Code

// Project 11: Ambulance Siren
// PlzPapa Robotic Kit

int redPin = 12;
int bluePin = 11;
int buzzerPin = 10;

void setup() {
  pinMode(redPin, OUTPUT);
  pinMode(bluePin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
}

void loop() {
  // STEP 1: Nee-Naw (Part 1 - High Pitch)
  // Red Light ON, Blue OFF
  digitalWrite(redPin, HIGH);
  digitalWrite(bluePin, LOW);
  
  // Buzzer Bajao (Frequency 1000Hz - Bareek awaaz)
  tone(buzzerPin, 1000); 
  
  delay(400); // 400ms tak bajne do

  // STEP 2: Nee-Naw (Part 2 - Low Pitch)
  // Red OFF, Blue ON
  digitalWrite(redPin, LOW);
  digitalWrite(bluePin, HIGH);
  
  // Buzzer Bajao (Frequency 600Hz - Bhari awaaz)
  tone(buzzerPin, 600);
  
  delay(400); // 400ms tak bajne do
}