WTA : nodeMCU DHT11/22 send to EasyIoT server

6 years 5 months ago #1509 by lesjaw

Dennis wrote: congrats. :)

You can set the Unit in the easyIot servers module settings..

regards


ooo..i see.. thanks again Dennis.. you are really help..

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6 years 5 months ago - 6 years 5 months ago #1510 by lesjaw
to anyone who want to use this.. here is the code..
/*
  Created by Igor Jarc
 See http://iot-playground.com for details
 Please use community fourum on website do not contact author directly
 
 Code based on https://github.com/DennisSc/easyIoT-ESPduino/blob/master/sketches/ds18b20.ino
 
 External libraries:
 - https://github.com/adamvr/arduino-base64
 - I forget where do i get this DHT Library (i think i got it from ESP8266 Arduino IDE)
 
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License
 version 2 as published by the Free Software Foundation.

 Add Temperature Node in EasyIoT Server (Driver - Virtual Driver)
 Add Humidity Node in EasyIoT Server (Driver - Virtual Driver)
 */
#include <ESP8266WiFi.h>
#include <DHT.h>
#include <Base64.h>

const char* ssid = "Your SSID";
const char* password = "Your Wifi Password";
const char* host = "IP Address of EasyIoT Server";
const char* nodet = "Your Node for temperature";
const char* nodeh = "Your Node for Humidity";
const char* user = "admin";
const char* userpassword = "test";

#define DHTPIN 2 // what pin we're connected to
 
DHT dht(DHTPIN, DHT11,15);

#define USER_PWD_LEN 40
char unameenc[USER_PWD_LEN];

void setup() {
  Serial.begin(115200);
  delay(10);
  dht.begin();
  
 // Connect to WiFi network
  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(WiFi.localIP());
  
  char uname[USER_PWD_LEN];
  String str = String(user)+":"+String(userpassword);  
  str.toCharArray(uname, USER_PWD_LEN); 
  memset(unameenc,0,sizeof(unameenc));
  base64_encode(unameenc, uname, strlen(uname));
}

void loop() {
  Serial.print("Connecting to ");
  Serial.println(host);
  
  // Use WiFiClient class to create TCP connections for Humidity
  WiFiClient client;
  const int httpPort = 80;
  if (!client.connect(host, httpPort)) {
    Serial.println("connection failed");
    return;
  }
  
  float h = dht.readHumidity();
  
  if (isnan(h)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
 
 String urlh = "";
  urlh += "/Api/EasyIoT/Control/Module/Virtual/"+ String(nodeh) + "/ControlLevel/"+String(h); // generate EasIoT server node URL

  Serial.print("POST data to URL: ");
  Serial.println(urlh);
 
  client.print(String("POST ") + urlh + " HTTP/1.1\r\n" +
               "Host: " + String(host) + "\r\n" + 
               "Connection: close\r\n" + 
               "Authorization: Basic " + unameenc + " \r\n" + 
               "Content-Length: 0\r\n" + 
               "\r\n");      
  delay(5000);
  
  // Use WiFiClient class to create TCP connections for Temperature
  WiFiClient client2;
  const int httpPort1 = 80;
  if (!client2.connect(host, httpPort1)) {
    Serial.println("connection failed");
    return;
  }
  
  float t = dht.readTemperature();
  
  if (isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
  
  String urlt = "";
  urlt += "/Api/EasyIoT/Control/Module/Virtual/"+ String(nodet) + "/ControlLevel/"+String(t); // generate EasIoT server node URL

  Serial.print("POST data to URL: ");
  Serial.println(urlt);
  
  client2.print(String("POST ") + urlt + " HTTP/1.1\r\n" +
               "Host: " + String(host) + "\r\n" + 
               "Connection: close\r\n" + 
               "Authorization: Basic " + unameenc + " \r\n" + 
               "Content-Length: 0\r\n" + 
               "\r\n");
  delay(100);
  
  // Read all the lines of the reply from server and print them to Serial
    while(client.available()){
    String line = client.readStringUntil('\r');
    Serial.print(line);
  }
  
   while(client2.available()){
    String line = client2.readStringUntil('\r');
    Serial.print(line);
  }

  Serial.println();
  Serial.println("closing connection");
  
  // Repeat every 5 minutes
  delay(300000);
}





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The following user(s) said Thank You: ArneiO

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6 years 5 months ago #1512 by cdj
I want to use this, we can eliminate automation, but the problem is: no float value? No 23.7 degree (for ex)
This is the reason of my calculation in automation, and in bmp you must make calculation to have a common value of pressure...

Pherhaps in this way i resolve my strange graph problems...

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6 years 5 months ago #1514 by lesjaw

cdj wrote: I want to use this, we can eliminate automation, but the problem is: no float value? No 23.7 degree (for ex)
This is the reason of my calculation in automation, and in bmp you must make calculation to have a common value of pressure...

Pherhaps in this way i resolve my strange graph problems...



Hi CDJ..

what do you mean by no float value? No. 23.7?

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6 years 5 months ago #1516 by cdj
Take a look of your value, is 28° and 72% , rounded and not accurate...

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6 years 5 months ago - 6 years 5 months ago #1517 by ArneiO
As far as I know, the DHT11 always reports XX.0.

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