gktemp.c

#include <Arduino.h>
#include <ESP8266WiFi.h>
#include <DHT.h>

#define DHTPIN 2
#define DHTTYPE DHT11

const char* ssid = "Csopaki13";
const char* password = "CSOPAKI13jelszo";

DHT dht(DHTPIN, DHTTYPE);

// Initialize the Wifi client library
WiFiClient client;

void setup() {
  Serial.begin(74880);
  delay(10);

  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.mode(WIFI_STA); //We don't want the ESP to act as an AP
  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }

  Serial.println("");
  Serial.println("WiFi connected.");
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());

  Serial.println("Initializing DHT...");
  dht.begin();
}

void loop() {
  // Wait a few seconds between measurements.
  delay(2000);

  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  float h = dht.readHumidity();
  // Read temperature as Celsius (the default)
  float t = dht.readTemperature();
  // Read temperature as Fahrenheit (isFahrenheit = true)
  float f = dht.readTemperature(true);

  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  // Compute heat index in Fahrenheit (the default)
  // float hif = dht.computeHeatIndex(f, h);
  // Compute heat index in Celsius (isFahreheit = false)
  float hic = dht.computeHeatIndex(t, h, false);

  // Serial.print("Humidity: ");
  // Serial.print(h);
  // Serial.print(" %\t");
  // Serial.print("Temperature: ");
  // Serial.print(t);
  // Serial.print(" *C ");
  // Serial.print(f);
  // Serial.print(" *F\t");
  // Serial.print("Heat index: ");
  // Serial.print(hic);
  // Serial.print(" *C ");
  // Serial.print(hif);
  // Serial.println(" *F");

  Serial.println("Sending...");

  IPAddress server(192,168,0,45);

  String content = "";
  content = content + "temp=";
  content = content + t;
  content = content + "&humidity=";
  content = content + h;
  content = content + "&heatidx=";
  content = content + hic;

  if (client.connect(server, 80)) {
    client.println("POST /api HTTP/1.1");
    client.print("Host: ");
    client.println(WiFi.localIP());
    client.println("Content-Type: application/x-www-form-urlencoded");
    client.print("Content-Length: ");
    client.println(content.length());
    client.println();
    client.println(content);
  }
}