#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <Adafruit_Sensor.h>
#include <DHT.h>

#define DHTPIN 14           // Pin where the DHT22 is connected
#define DHTTYPE DHT22       // DHT 22 (AM2302) sensor type
DHT dht(DHTPIN, DHTTYPE);

#define TRIGGER_PIN 15      // Pin for the ultrasound motion sensor
#define LED_AC 5            // Pin for the AC LED
#define LED_LIGHTS 18       // Pin for the lights LED
#define POTENTIOMETER_PIN 34 // Pin for the potentiometer

// LCD configuration
LiquidCrystal_I2C lcd(0x27, 16, 2);

bool motionDetected = false;
bool lightsOn = false;
bool acOn = false;
float thermostatSetting = 0.0;

void setup() {
  Serial.begin(115200);
  lcd.begin(16, 2);
  pinMode(TRIGGER_PIN, INPUT);
  pinMode(LED_AC, OUTPUT);
  pinMode(LED_LIGHTS, OUTPUT);
}

void loop() {
  // Read temperature and humidity from DHT sensor
  float temperature = dht.readTemperature();
  
  // Read motion status from ultrasound sensor
  motionDetected = digitalRead(TRIGGER_PIN) == HIGH;

  // Read potentiometer value for thermostat setting
  int potValue = analogRead(POTENTIOMETER_PIN);
  thermostatSetting = map(potValue, 0, 4095, 16.0, 30.0); // Map the potentiometer value to a temperature range

  // Display information on LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temperature: ");
  lcd.print(temperature);
  lcd.setCursor(0, 1);
  lcd.print("AC: ");
  lcd.print(acOn ? "On" : "Off");
  lcd.print(" Thermostat: ");
  lcd.print(thermostatSetting);
  lcd.print("C");

  lcd.setCursor(0, 2);
  lcd.print("Lights: ");
  lcd.print(lightsOn ? "On" : "Off");
  lcd.print(" Motion: ");
  lcd.print(motionDetected ? "Detected" : "Not Detected");

  // Check and control AC and lights
  controlAC();
  controlLights();

  delay(1000); // Update every second
}

void controlAC() {
  // Simulate AC control using an LED
  if (temperature > thermostatSetting && !acOn) {
    acOn = true;
    digitalWrite(LED_AC, HIGH); // Turn on AC LED
    // Add code to turn on actual AC here if available
  } else if (temperature <= thermostatSetting && acOn) {
    acOn = false;
    digitalWrite(LED_AC, LOW); // Turn off AC LED
    // Add code to turn off actual AC here if available
  }
}

void controlLights() {
  // Simulate lights control using an LED
  if (motionDetected && !lightsOn) {
    lightsOn = true;
    digitalWrite(LED_LIGHTS, HIGH); // Turn on lights LED
    // Add code to turn on actual lights here if available
  } else if (!motionDetected && lightsOn) {
    lightsOn = false;
    digitalWrite(LED_LIGHTS, LOW); // Turn off lights LED
    // Add code to turn off actual lights here if available
  }
}