#include <WiFi.h>
#include <OneWire.h>
#include <DallasTemperature.h>

// Define the pins for the sensors
#define TRIG_PIN 12  // Pin connected to the TRIG pin of the HC-SR04
#define ECHO_PIN 13  // Pin connected to the ECHO pin of the HC-SR04
#define ONE_WIRE_BUS 14  // Pin connected to the data pin of the DS18B20

// Setup the OneWire bus
OneWire oneWire(ONE_WIRE_BUS);
DallasTemperature sensors(&oneWire);

long duration;
int distance;

void setup() {
  // Start the serial communication
  Serial.begin(115200);
  
  // Initialize the ultrasonic sensor
  pinMode(TRIG_PIN, OUTPUT);
  pinMode(ECHO_PIN, INPUT);

  // Initialize the DS18B20 sensor
  sensors.begin();
  
  Serial.println("Ultrasonic and DS18B20 Sensor Test");
}

void loop() {
  // Measure distance with the ultrasonic sensor
  digitalWrite(TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(TRIG_PIN, LOW);

  duration = pulseIn(ECHO_PIN, HIGH);
  distance = duration * 0.034 / 2;  // Calculate distance in cm

  // Request temperature from the DS18B20 sensor
  sensors.requestTemperatures();  // Request temperature reading
  float temperature = sensors.getTempCByIndex(0);  // Get the temperature in Celsius
  
  // Check if the temperature reading is valid
  if (temperature == -127.00) {
    Serial.println("Failed to read from DS18B20 sensor!");
  } else {
    // Print the sensor values to the serial monitor
    Serial.print("Distance: ");
    Serial.print(distance);
    Serial.println(" cm");

    Serial.print("Temperature: ");
    Serial.print(temperature);
    Serial.println(" °C");
  }

  // Wait for 2 seconds before taking the next reading
  delay(2000);
}