TRIBUTE TO INDIAN ARMY- Shoot the Enemy with LASER

TRIBUTE TO INDIAN ARMY- Shoot the Enemy with LASER 

Code With Connection:

//TRIGGER_PIN  4  // D4

//ECHO_PIN     5  // D5

//LASER_PIN    15 // D15

//OLED

//SCK D22

//SDA D21

#include <Wire.h>

#include <Adafruit_GFX.h>

#include <Adafruit_SSD1306.h>

#include <NewPing.h>

#define OLED_RESET    -1

Adafruit_SSD1306 display(OLED_RESET);

#define TRIGGER_PIN  4  // D4

#define ECHO_PIN     5  // D5

#define MAX_DISTANCE 200 // Maximum distance we want to ping for (in centimeters). Maximum sensor distance is rated at 400-500cm.

#define LASER_PIN    15  // Pin connected to the LASER module

NewPing sonar(TRIGGER_PIN, ECHO_PIN, MAX_DISTANCE); // NewPing setup of pins and maximum distance.

void setup() {

  Serial.begin(115200);

 

  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3C for 128x64

    Serial.println(F("SSD1306 allocation failed"));

    for(;;);

  }

  // Set LASER pin as output

  pinMode(LASER_PIN, OUTPUT);

  digitalWrite(LASER_PIN, LOW); // Ensure LASER is off initially

  // Clear the buffer

  display.clearDisplay();

  // Display initial message

  display.setTextSize(1);

  display.setTextColor(SSD1306_WHITE);

  display.setCursor(0, 0);

  display.println("SR04 Distance");

  display.display();

  delay(2000);

  display.clearDisplay();

}

void shootLaser(bool activate) {

  if (activate) {

    digitalWrite(LASER_PIN, HIGH); // Turn on LASER

  } else {

    digitalWrite(LASER_PIN, LOW);  // Turn off LASER

  }

}

void loop() {

  delay(100); // Wait 100ms between pings (about 10 pings/sec). 29ms should be the shortest delay between pings.

 

  unsigned int distance = sonar.ping_cm(); // Send ping, get distance in cm (0 = outside set distance range)

  display.clearDisplay();

  display.setTextSize(1);

  display.setTextColor(SSD1306_WHITE);

  display.setCursor(0, 10);

  // Display distance

  if (distance == 0) {

    display.println("Out of range");

    shootLaser(false); // Turn off LASER if out of range

    display.setCursor(0, 20);

    display.println("LASER: OFF");

  } else {

    display.print("Distance: ");

    display.print(distance);

    display.println(" cm");

   

    // Determine and display LASER status

    if (distance <= 10) {

      shootLaser(true); // Turn on LASER

      display.setCursor(0, 20);

      display.println("LASER: SHOOT ENEMY");

    } else {

      shootLaser(false); // Turn off LASER

      display.setCursor(0, 20);

      display.println("LASER: OFF");

    }

  }

  display.display();

}