#include <Wire.h>
#include <LiquidCrystal_I2C.h>
// إعداد شاشة LCD
LiquidCrystal_I2C lcd(0x27, 16, 2);
// تعريف المكونات
const int trigPin = 12;
const int echoPin = 11;
const int yellowLED = 10;
const int whiteLED = 9;
const int buzzer = 8;
// متغيرات
long duration;
int distance;
void setup() {
pinMode(trigPin, OUTPUT);
pinMode(echoPin, INPUT);
pinMode(yellowLED, OUTPUT);
pinMode(whiteLED, OUTPUT);
pinMode(buzzer, OUTPUT);
lcd.init();
lcd.backlight();
}
void loop() {
// إرسال نبضة للمستشعر
digitalWrite(trigPin, LOW);
delayMicroseconds(2);
digitalWrite(trigPin, HIGH);
delayMicroseconds(10);
digitalWrite(trigPin, LOW);
// استقبال النبضة
duration = pulseIn(echoPin, HIGH);
distance = (0.034*duration)/2;
// التحكم في الإشارات
lcd.clear();
if (distance <= 3) {
digitalWrite(yellowLED, HIGH);
digitalWrite(whiteLED, LOW);
digitalWrite(buzzer, HIGH);
lcd.setCursor(0, 0);
lcd.print(“Almost full 🙁 “);
lcd.setCursor(0, 1);
lcd.print(“Clean me :)”);
} else {
digitalWrite(yellowLED, LOW);
digitalWrite(whiteLED, HIGH);
digitalWrite(buzzer, LOW);
lcd.setCursor(0, 0);
lcd.print(“Eco-cleanliness=”);
lcd.setCursor(0, 1);
lcd.print(“Civility :)”);
}
delay(250);
}