#include <LiquidCrystal_I2C.h>
#include <Wire.h>
// LCD ekranın adresi ve boyutu (0x27, 16x2)
LiquidCrystal_I2C lcd(0x27, 16, 2);
// Pin tanımlamaları
const int sensorPin = A0;
const int blueLedPin = 2;
const int redLedPin = 3;
const int buzzerPin = 4;
void setup() {
lcd.begin(16, 2);
lcd.backlight();
pinMode(blueLedPin, OUTPUT);
pinMode(redLedPin, OUTPUT);
pinMode(buzzerPin, OUTPUT);
}
void loop() {
int sensorValue = analogRead(sensorPin);
float voltage = sensorValue * (5.0 / 1023.0);
float temperatureC = (voltage - 0.5) * 100;
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Sicaklik: ");
lcd.print(temperatureC);
lcd.print(" C");
// LED ve buzzer kontrolü
if (temperatureC < 15) {
digitalWrite(blueLedPin, HIGH);
digitalWrite(redLedPin, LOW);
digitalWrite(buzzerPin, LOW);
} else if (temperatureC >= 15 && temperatureC <= 45) {
digitalWrite(blueLedPin, LOW);
digitalWrite(redLedPin, HIGH);
digitalWrite(buzzerPin, LOW);
} else {
digitalWrite(blueLedPin, LOW);
digitalWrite(redLedPin, LOW);
digitalWrite(buzzerPin, HIGH);
}
delay(1000); // 1 saniye bekle
}