51E5RGXA

1#include <DHT.h>
2#include <ESP8266WiFi.h>
3 
4#define DHTPIN 2          //DHT11 is connected to GPIO Pin 2
5
6String apiKey = "XXXXXXXXXXXXXXXX";     //  Enter your Write API key from ThingSpeak
7const char* ssid =  "SSID";     // Enter your WiFi Network's SSID
8const char* pass =  "PASSWORD"; // Enter your WiFi Network's Password
9const char* server = "api.thingspeak.com";
10 
11float humi;
12float temp;
13 
14DHT dht(DHTPIN, DHT11);
15WiFiClient client;
16 
17void setup() 
18{
19       Serial.begin(115200);
20       delay(10);
21       dht.begin();
22 
23       Serial.println("Connecting to ");
24       Serial.println(ssid);
25 
26 
27       WiFi.begin(ssid, pass);
28 
29      while (WiFi.status() != WL_CONNECTED) 
30     {
31            delay(100);
32            Serial.print("*");
33     }
34      Serial.println("");
35      Serial.println("***WiFi connected***");
36 
37}
38 
39void loop() 
40{
41  
42      humi = dht.readHumidity();
43      temp = dht.readTemperature();
44 
45      if (client.connect(server,80))   //   "184.106.153.149" or api.thingspeak.com
46      {  
47       String sendData = apiKey+"&field1="+String(temp)+"&field2="+String(humi)+"\r\n\r\n"; 
48       
49       //Serial.println(sendData);
50
51       client.print("POST /update HTTP/1.1\n");
52       client.print("Host: api.thingspeak.com\n");
53       client.print("Connection: close\n");
54       client.print("X-THINGSPEAKAPIKEY: "+apiKey+"\n");
55       client.print("Content-Type: application/x-www-form-urlencoded\n");
56       client.print("Content-Length: ");
57       client.print(sendData.length());
58       client.print("\n\n");
59       client.print(sendData);
60
61       Serial.print("Temperature: ");
62       Serial.print(temp);
63       Serial.print("deg C. Humidity: ");
64       Serial.print(humi);
65       Serial.println("%. Connecting to Thingspeak.");
66       }
67      
68      client.stop();
69
70      Serial.println("Sending....");
71  
72 delay(10000);
73}