TEMPERATURE.ino

#include <ESP8266WiFi.h>
const char* ssid     = "AMMUANJU"; // Your ssid
const char* password = "ammuanju123"; // Your Password
float temp_celsius = 0;
float temp_fahrenheit = 0;

//setting up connection with NodeMCU
WiFiServer server(80);
void setup() {
    Serial.begin(115200);
    pinMode(A0, INPUT);   
    Serial.println();
    Serial.println();
    Serial.print("Connecting to ");
    Serial.println(ssid);
    WiFi.begin(ssid, password);
      while (WiFi.status() != WL_CONNECTED) {
                                              delay(500);
                                              Serial.print(".");
                                            }
    Serial.println("");
    Serial.println("WiFi is connected");
    server.begin();
    Serial.println("Server started");
    Serial.println(WiFi.localIP());
          }
          
void loop() {
    temp_celsius = ((analogRead(A0) * 330.0)/1024.0);   /* To convert analog values to Celsius We have 3.3 V on our board and 
                                                        we know that output voltage of LM35 varies by 10 mV to every degree Celsius rise/fall.*/
    temp_fahrenheit = (temp_celsius * 1.8)+32.0;
    Serial.print("  Temperature = ");
    Serial.print(temp_celsius);
    Serial.print(" Celsius ");
    Serial.print(temp_fahrenheit);
    Serial.println(" Fahrenheit");
    //setting up the web page
    WiFiClient client = server.available(); 
    client.println("HTTP/1.1 200 OK");
    client.println("Content-Type: text/html");
    client.println("Connection: close");  // the connection will be closed after completion of the response
    client.println("Refresh: 10");        // update the page after 10 sec
    client.println();
    client.println("<!DOCTYPE HTML>");
    client.println("<html>");
    client.print("<p style='text-align: center;'><span style='font-size: x-large;'><strong>Smart Thermometer</strong></span></p>");
    client.print("<p style='text-align: center;'><span style='color: #0000ff;'><strong style='font-size: large;'>Temperature (C)= ");
    client.println(temp_celsius);
    client.print("<p style='text-align: center;'><span style='color: #0000ff;'><strong style='font-size: large;'>Temperature (F) = ");
    client.println(temp_fahrenheit);
    client.print("</p>");
    client.println("</html>");
    delay(5000);
}