#include <WiFi.h>
#include "DHT.h"
#define DHTPIN 13
#define DHTTYPE DHT11
const char* ssid = "YOUR SSID";
const char* password = "1234567890";
DHT dht(DHTPIN, DHTTYPE);
WiFiServer server(80);
void setup()
{
Serial.begin(115200);
pinMode(26, OUTPUT); // set the LED pin mode
delay(10);
dht.begin();
// We start by connecting to a WiFi network
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 connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
server.begin();
}
int value = 0;
void loop(){
float h = dht.readHumidity();
// Read temperature as Celsius (the default)
float t = dht.readTemperature();
WiFiClient client = server.available(); // listen for incoming clients
if (client) { // if you get a client,
Serial.println("new client"); // print a message out the serial port
String currentLine = ""; // make a String to hold incoming data from the client
while (client.connected()) { // loop while the client's connected
if (client.available()) { // if there's bytes to read from the client,
char c = client.read(); // read a byte, then
Serial.write(c); // print it out the serial monitor
if (c == '\n') { // if the byte is a newline character
// if the current line is blank, you got two newline characters in a row.
// that's the end of the client HTTP request, so send a response:
if (currentLine.length() == 0) {
// HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK)
// and a content-type so the client knows what's coming, then a blank line:
client.println("HTTP/1.1 200 OK");
client.println("Content-type:text/html");
client.println();
// the content of the HTTP response follows the header:
client.print("<html><head></head><body align=center>");
client.print("<h1>IoT Controller </h1>");
client.print("<h2>Temperature=");
client.print(t);
client.println("</h2>");
client.print("<h2>Humidity=");
client.print(h);
client.println("</h2>");
client.println("<p><a href=\"/ON\"><button class=\"button\"> ON</button></a></p>");
client.print("<p><a href=\"/OFF\"><button class=\"button\">OFF</button></a></p>");
client.print("</body></html>");
// The HTTP response ends with another blank line:
client.println();
// break out of the while loop:
break;
} else { // if you got a newline, then clear currentLine:
currentLine = "";
}
} else if (c != '\r') { // if you got anything else but a carriage return character,
currentLine += c; // add it to the end of the currentLine
}
// Check to see if the client request was "GET /H" or "GET /L":
if (currentLine.endsWith("GET /ON")) {
digitalWrite(26, HIGH); // GET /H turns the LED on
}
if (currentLine.endsWith("GET /OFF")) {
digitalWrite(26, LOW); // GET /L turns the LED off
}
}
}
// close the connection:
client.stop();
Serial.println("client disonnected");
}
}