WTA : nodeMCU DHT11/22 send to EasyIoT server

--init.lua
print("Setting up WIFI...")
wifi.setmode(wifi.STATION)
--modify according your wireless router settings
wifi.sta.config("MiFi","nexusdroit")
wifi.sta.connect()
tmr.alarm(1, 1000, 1, function() 
if wifi.sta.getip()== nil then 
print("IP unavaiable, Waiting...") 
else 
tmr.stop(1)
print("Config done, IP is "..wifi.sta.getip())
dofile("dht11.lua")
end 
end)

- Measure temperature, humidity and post data to thingspeak.com
-- 2014 OK1CDJ
-- DHT11 code is from esp8266.com
---Sensor DHT11 is conntected to GPIO0
pin = 3

Humidity = 0
HumidityDec=0
Temperature = 0
TemperatureDec=0
Checksum = 0
ChecksumTest=0


function getTemp()
Humidity = 0
HumidityDec=0
Temperature = 0
TemperatureDec=0
Checksum = 0
ChecksumTest=0

--Data stream acquisition timing is critical. There's
--barely enough speed to work with to make this happen.
--Pre-allocate vars used in loop.

bitStream = {}
for j = 1, 40, 1 do
     bitStream[j]=0
end
bitlength=0

gpio.mode(pin, gpio.OUTPUT)
gpio.write(pin, gpio.LOW)
tmr.delay(20000)
--Use Markus Gritsch trick to speed up read/write on GPIO
gpio_read=gpio.read
gpio_write=gpio.write

gpio.mode(pin, gpio.INPUT)

--bus will always let up eventually, don't bother with timeout
while (gpio_read(pin)==0 ) do end

c=0
while (gpio_read(pin)==1 and c<100) do c=c+1 end

--bus will always let up eventually, don't bother with timeout
while (gpio_read(pin)==0 ) do end

c=0
while (gpio_read(pin)==1 and c<100) do c=c+1 end

--acquisition loop
for j = 1, 40, 1 do
     while (gpio_read(pin)==1 and bitlength<10 ) do
          bitlength=bitlength+1
     end
     bitStream[j]=bitlength
     bitlength=0
     --bus will always let up eventually, don't bother with timeout
     while (gpio_read(pin)==0) do end
end

--DHT data acquired, process.

for i = 1, 8, 1 do
     if (bitStream[i+0] > 2) then
          Humidity = Humidity+2^(8-i)
     end
end
for i = 1, 8, 1 do
     if (bitStream[i+8] > 2) then
          HumidityDec = HumidityDec+2^(8-i)
     end
end
for i = 1, 8, 1 do
     if (bitStream[i+16] > 2) then
          Temperature = Temperature+2^(8-i)
     end
end
for i = 1, 8, 1 do
     if (bitStream[i+24] > 2) then
          TemperatureDec = TemperatureDec+2^(8-i)
     end
end
for i = 1, 8, 1 do
     if (bitStream[i+32] > 2) then
          Checksum = Checksum+2^(8-i)
     end
end
ChecksumTest=(Humidity+HumidityDec+Temperature+TemperatureDec) % 0xFF

print ("Temperature: "..Temperature.."."..TemperatureDec)
print ("Humidity: "..Humidity.."."..HumidityDec)
print ("ChecksumReceived: "..Checksum)
print ("ChecksumTest: "..ChecksumTest)
end

--- Get temp and send data to thingspeak.com
function sendData()
getTemp()
-- conection to thingspeak.com
print("Sending data to thingspeak.com")
conn=net.createConnection(net.TCP, 0) 
conn:on("receive", function(conn, payload) print(payload) end)
-- api.thingspeak.com 184.106.153.149
conn:connect(80,'192.168.5.157') 
conn:send("GET /field1="..Temperature.."."..TemperatureDec.."&field2="..Humidity.."."..HumidityDec.." HTTP/1.1\r\n") 

conn:on("sent",function(conn)
                      print("Closing connection")
                      conn:close()
                  end)
conn:on("disconnection", function(conn)
                      print("Got disconnection...")
  end)
end
-- send data every X ms to thing speak
tmr.alarm(2, 60000, 1, function() sendData() end )

/*
  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
 - https://github.com/milesburton/Arduino-Temperature-Control-Library
 
 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.
 */
#include <ESP8266WiFi.h>
#include <DHT.h>
#include <Base64.h>

// EasyIoT server definitions
#define ssid  "MiFi"
#define password  "nexusdroit"
#define host "192.168.5.157"
#define port 80
#define nodet "N1S0"
#define nodeh "N2S0"
#define user "admin"
#define 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];

float oldTemp;
float oldHum;


void setup() {
  Serial.begin(115200);
  delay(10);
  dht.begin();
  
 wifiConnect();
  
  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));
  
  oldTemp = -1;
  oldHum = -1;
}

void loop() {
 
  float t = dht.readTemperature();
  
  if (isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
    
   if (t != oldTemp){
   sendInputStateT(t);
   oldTemp = t;
   }
   
  float h = dht.readHumidity();
  
  if (isnan(h)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
  
  if (h != oldHum){
   sendInputStateH(h);
   oldHum = h;
   }
   
}

void wifiConnect(){
      Serial.print("Connecting to AP");
      WiFi.begin(ssid, password);
      while (WiFi.status() != WL_CONNECTED) {
      delay(100);
      Serial.print(".");
}

Serial.println("");
Serial.println("WiFi connected");  
}

void sendInputStateT(float t){
  // Use WiFiClient class to create TCP connections
  WiFiClient client;
  while(!client.connect(host, port)) {
    Serial.println("connection failed");
    wifiConnect(); 
  } 
  
  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);
 
  client.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");
         
  // 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);
  }      
  delay(5000);
}
  
void sendInputStateH(float h){
  // Use WiFiClient class to create TCP connections
  WiFiClient client2;
  while(!client2.connect(host, port)) {
    Serial.println("connection failed");
    wifiConnect(); 
  } 
  
  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);
  
  client2.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);
  
   while(client2.available()){
    String line = client2.readStringUntil('\r');
    Serial.print(line);
  }

  Serial.println();
  Serial.println("closing connection");
  
  delay(100);
}

// 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 = "MiFi";
const char* password = "nexusdroit";
 
//const char* server = "api.thingspeak.com";
#define DHTPIN 2 // what pin we're connected to
 
DHT dht(DHTPIN, DHT11,15);
WiFiServer server(8);
   
 
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;
  }

     Serial.print("Temperature: ");
     Serial.print(t);
     Serial.print(" degrees Celcius Humidity: "); 
     Serial.print(h);
     Serial.println("% send to Thingspeak");    
 
   
  Serial.println("Waiting...");    
  
  delay(20000);  
}