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2019-11-12T07:10:41Z

Created page with " // www.arduinesp.com // // Plot DTH11 data on thingspeak.com using an ESP8266 // April 11 2015 // Author: Jeroen Beemster // Website: www.arduinesp.com // changed for..."

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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
// changed for DHT22 (AM2302), then use random value instead real value sensor by niq_ro (Nicu FLORICA)
// from http://nicuflorica.blogspot.ro

#include <DHT.h> // use just if use real sensor not for random
#include <ESP8266WiFi.h>

// replace with your channel's thingspeak API key,
String apiKey = "0C2X0PGNFHOEGYZA";
const char* ssid = "HUAWEI-1A73";
const char* password = "52408495";
const char* server = "api.thingspeak.com";

// uncomment if use real sensor

#define DHTPIN D1 // what pin we're connected to
// note GPIO5 is D1 at NodeMCU - http://www.14core.com/wp-content/uploads/2015/06 /Node-MCU-Pin-Out-Diagram1.png
// note GPIO5 is D15 http://www.wemos.cc/wiki/doku.php?id=en:d1
#define DHTTYPE DHT11 // DHT 11
//#define DHTTYPE DHT22 // DHT 22
DHT dht(DHTPIN, DHTTYPE,11);
//DHT dht(DHTPIN, DHTTYPE);

WiFiClient client;

void setup() {
Serial.begin(115200);
delay(10);

dht.begin(); // uncomment if use real sensor

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() {
// uncomment if use real sensor

float h = dht.readHumidity();
float t = dht.readTemperature();

/*
// comment if use real sensor
float h = random(3000,5000);
h = h / 100;

float t = random (2000,2500);
t = t / 100;
// end part of random values
*/

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(30000);
}

WeMOS: WiFi Weather Station Thingspeak - Revision history

Onnowpurbo: Created page with " // www.arduinesp.com // // Plot DTH11 data on thingspeak.com using an ESP8266 // April 11 2015 // Author: Jeroen Beemster // Website: www.arduinesp.com // changed for..."