#include <WiFi.h>
#include <WebServer.h>
#include <Wire.h>
#include <OneWire.h>
#include <DallasTemperature.h>
#include "DHT.h" 
#include <LiquidCrystal_I2C.h>

#define REPORTING_PERIOD_MS     1000

// set the LCD number of columns and rows
int lcdColumns = 20;
int lcdRows = 4;

// set LCD address, number of columns and rows
// if you don't know your display address, run an I2C scanner sketch
LiquidCrystal_I2C lcd(0x27, lcdColumns, lcdRows);  
#define DHTTYPE DHT22 
#define DHTPIN 18
#define DS18B20 5
 
float temperature, humidity, BPM, SpO2, bodytemperature;
 

DHT dht(DHTPIN, DHTTYPE);
uint32_t tsLastReport = 0;
OneWire oneWire(DS18B20);
DallasTemperature sensors(&oneWire);
 

 
void setup() {
  // initialize LCD
  lcd.init();
  // turn on LCD backlight                      
  lcd.backlight();

  Serial.begin(115200);
  pinMode(19, OUTPUT);
  delay(100);   
  
  // Initialize DHT sensor
  Serial.println(F("DHTxx test!"));
  dht.begin();
  

}
 
void loop() {


  // Request temperature readings from sensors
  sensors.requestTemperatures();
  
  // Read temperature and humidity from DHT sensor
  float t = dht.readTemperature();
  String Temperature_Value = String(t);
  float h = dht.readHumidity();
  String Humidity_Value = String(h);
  
  // Store sensor readings
  temperature = t;
  humidity = h;
  BPM = 86.5;
  SpO2 = 99.4;
  bodytemperature = sensors.getTempCByIndex(0);
 
  // Send sensor data at a fixed reporting period
  if (millis() - tsLastReport > REPORTING_PERIOD_MS) {
    Serial.print("Room Temperature: ");
    Serial.print(t);
    Serial.println("°C");
    lcd.setCursor(0, 0);
     // print message
    lcd.print("R Temp: ");
    lcd.print(t);
    lcd.print("°C");  // corrected here
 
    Serial.print("Room Humidity: ");
    Serial.print(h);
    Serial.println("%");

    lcd.setCursor(0, 1);
     // print message
    lcd.print("R Hum: ");
    lcd.print(h);
    lcd.print("%");  // corrected here
 
    Serial.print("BPM: ");
    Serial.println(BPM);

    lcd.setCursor(0, 2);
     // print message
    lcd.print("BPM: ");
    lcd.print(BPM);
    lcd.print("%");

    lcd.print(" ");
 
    Serial.print("SpO2: ");
    Serial.print(SpO2);
    Serial.println("%");

    lcd.print("SpO2: ");
    lcd.print(SpO2);
    lcd.print("%");  // corrected here
 
    Serial.print("Body Temperature: ");
    Serial.print(bodytemperature);
    Serial.println("°C");
 
    Serial.println("*********************************");
    Serial.println();

    lcd.setCursor(0, 3);

    lcd.print("b Temp: ");
    lcd.print(bodytemperature);
    lcd.print("°C");  // corrected here
 
    tsLastReport = millis();
  }
  
}