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- // www.arduinesp.com
- //
- // Plot DTH11 data on thingspeak.com using an ESP8266
- // April 11 2015
- // Author: Jeroen Beemster
- // Website: www.arduinesp.com
- #include <DHT.h>
- //#include <ESP8266WiFi.h>
- // replace with your channel's thingspeak API key,
- String apiKey = "4XZ9NA14HQZ7BYD7";
- const char* ssid = "ssid";
- const char* password = "password";
- const char* server = "api.thingspeak.com";
- #define DHTPIN 2 // what pin we're connected to
- DHT dht(DHTPIN, DHT11,15);
- //WiFiClient client;
- void setup() {
- Serial.begin(115200);
- delay(10);
- dht.begin();
- // WiFi.begin(ssid, password);
- 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");
- }
- void loop() {
- float h = dht.readHumidity();
- float t = dht.readTemperature();
- if (isnan(h) || isnan(t)) {
- Serial.println("Failed to read from DHT sensor!");
- return;
- }
- /* if (client.connect(server,80)) { // "184.106.153.149" or api.thingspeak.com
- String postStr = apiKey;
- postStr +="&field1=";
- postStr += String(t);
- postStr +="&field2=";
- postStr += String(h);
- postStr += "\r\n\r\n";
- client.print("POST /update HTTP/1.1\n");
- client.print("Host: api.thingspeak.com\n");
- client.print("Connection: close\n");
- client.print("X-THINGSPEAKAPIKEY: "+apiKey+"\n");
- client.print("Content-Type: application/x-www-form-urlencoded\n");
- client.print("Content-Length: ");
- client.print(postStr.length());
- client.print("\n\n");
- client.print(postStr);
- Serial.print("Temperature: ");
- Serial.print(t);
- Serial.print(" degrees Celcius Humidity: ");
- Serial.print(h);
- Serial.println("% send to Thingspeak");
- }*/
- // client.stop();
- Serial.println("Waiting...");
- // thingspeak needs minimum 15 sec delay between updates
- delay(20000);
- }
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