// wemosD1mini + DS18B20
// version 24/11/25

// used wemosD1 manual: https://geekelectronics.org/arduino/wemos-d1-r2-na-esp8266-ndash-pervoe-znakomstvo.html
///#include <LiquidCrystal.h>
// #include <Wire.h>  // Only needed for Arduino 1.6.5 and earlier
 //#include "SSD1306Wire.h" // alias for `#include "SSD1306Wire.h"`
//#include "DHT.h"
#include <OneWire.h>
#include <DallasTemperature.h>
#include <Ticker.h>
#include <ESP8266WiFi.h>
#include <ESP_EEPROM.h>   // https://github.com/jwrw/ESP_EEPROM
// for WEB
#include <WiFiClient.h>
#include <ESP8266WebServer.h>
#include <WiFiManager.h> // https://github.com/tzapu/WiFiManager

// for battery check
//ADC_MODE(ADC_VCC);

// remote host 
String api_url_script_url, host, url, chip_id, device_ip;
String ver="24.11.22";
String pin="8888";
String last_url = "";

float h_max_comfort=60;

//WiFiServer server(80);
ESP8266WebServer server ( 80 );
   char footer[400];
   char bottom[30];
  String www_menu = "&nbsp &nbsp<a href=index.php>Home</a> &nbsp &nbsp  \
      <a href=index.xml>XML page</a>  &nbsp &nbsp \
      <a href=index.json>JSON page</a>  &nbsp &nbsp \
      <a href=logs.php>LOGs</a>  &nbsp &nbsp";
 Ticker dht_get;
 Ticker tim;
 Ticker key_r;

// -------------------------------------------
//      #   [wf ]   1            
//      #   [   ]   3            
//      16  [   ]   5 OPTRON
//      14  [   ]   4 
// BTTN 12  [   ]   0           
// DS18 13  [   ]   2 BUILTLED    
//      15  [   ]   GND          
//      3,3 [usb]   5V            
// ___________________________________________
#define ONE_WIRE_BUS 13
#define button12 12
#define relay5 5  
 
float h = 0;
int temp_max = 20;
int temp_delta = 1;
float temp_real = 0;
bool temp_auto = true;
float temp_arr[4];
int temp_index = 0;
int fail_connect =0;
int time_update =10;
int analogval =0;
int hour=0; 
int minu=0;
int secu=0;
int clnts=0;
int point=0;
bool but_state = false;
bool but_last_state = false;
int but_count = 0;

//int d9_state = 1;
//volatile int d3_state = 1;
//int d9_last_state=1;
//int d3_last_state=1;
//volatile int d3_mills = 0;
//int d9_min=0;
//int d9_max=0;
//volatile int d3_count = 0;
//volatile long d3_last_mills[3] = {0,0,0};
//volatile long last_miils_cnt = 1;
//volatile long last_miils = 0;
int led_delay = 1;

int str2_count = 0;
int str2_state = 0;


float refr_cnt=883;
String datas="Init";
//String selector=" ";

//#define RST_OLED 16
//#define DHTPIN 14 
//#define DHTTYPE DHT21
//DHT dht(DHTPIN, DHTTYPE);

OneWire oneWire(ONE_WIRE_BUS);  
DallasTemperature sensors(&oneWire);
DeviceAddress deviceAddress; 
String owstat = "";
String owaddr[8];
float owtemp[8];
bool dht_get_flag = false;
bool tm_flag = false;
bool key_flag = false;
bool updated = false;
String tm_capt = "";

bool http_get_finc( int operation, String sens_id, float value)
{
  fail_connect= millis(); 
  bool result=false;
     //  Operations:
     //  1 - syncronize time
     //  2 - send changed params
     //  3 - read last relays configuration
     // String url2 = "/gpio/themp.php?p=12345&sens_id=4&act=save&val=";
    if((WiFi.status() == WL_CONNECTED))
    {  
         // Use WiFiClient class to create TCP connections
         WiFiClient client;  
         String line, last_url;
      if(operation==1)
      {
 //       Serial.print("connecting to ");
 //       Serial.println(host);  
           if (client.connect(host, 80))
          {
          // This will send the request to the server
          line = url + "?act=Hi" + " HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" + 
               "Connection: close\r\n\r\n";
               last_url = line;
            client.print(String("GET ") + line);
          // Read all the lines of the reply from server and print them to Serial
            line = "";
            while (client.connected())
            {
            if (client.available())
              {
                line = client.readStringUntil('\n');
                if(line.indexOf('now')>0)
                {
                    String st= line.substring(3,5);
                    hour = st.toInt();
                    st= line.substring(5,7);
                    minu = st.toInt();
                    st= line.substring(7,9);
                    secu = st.toInt();          
                    Serial.println(line);   
                }
              }
              if(millis()-fail_connect > 5000) client.stop();
            }
            client.stop();
            last_url += line;
            //    Serial.println("disconnect");
            }
            else     {     Serial.println("connection failed!");  client.stop();     }
      }
       
      if(operation==2 && sizeof(host)>1)  // ОТПРАВКА
      {  
         Serial.println("Try server:" + host + " url:" + url);
        if (client.connect(host, 80))
        {      
         line = url + sens_id + " HTTP/1.1\r\n" +
                  "Host: " + host + "\r\n" + 
               "Connection: close\r\n\r\n";
         last_url = line;
         client.print(String("GET ") + line);       
                 line = "";
          while (client.connected())
            {
            if (client.available())
            {   line = client.readStringUntil('\n');
                  if(line.indexOf('saved')>0)  Serial.println(line);
                 }
                 if(millis()-fail_connect > 5000) client.stop();
            }      
              client.stop();
              last_url += line;
              result = true;
        }
          else     { Serial.println("connection failed!");     client.stop();    }
      }
      if(operation==3)  // ПОЛУЧЕНИЕ
      {
           if (client.connect(host, 80))
          {                 
          // This will send the request to the server
          line = url + "?act=simple&sens_id=" + sens_id + " HTTP/1.1\r\n" +
               "Host: " + host + "\r\n" + 
               "Connection: close\r\n\r\n";
               last_url = line;
            client.print(String("GET ") + line);
          // Read all the lines of the reply from server and print them to Serial
            line = "";
            while (client.connected())
            {
            if (client.available())
              {  
                
               line = client.readStringUntil('\n');
                // bool variables
                String st= line.substring(0,1);
                bool state = false;
                if(st=="0" || st=="") state = false; 
                if(st=="1" || st=="5") state = true; 
      //         if(sens_id=="141")   digitalWrite(0, state);
//               if(sens_id=="142")   digitalWrite(2, state);
              }
             // if(millis()-fail_connect > 5000) client.stop();
            }
            client.stop();
             last_url += line;
            }
            else     {     Serial.println("connection failed!]");
             client.stop();     }
      }
            /////////WiFi.disconnect();
    }
//             Serial.println(last_url);
            dht_get_flag = false;
          return result;
}


void time_finc()
{
    secu=secu+30;
    if(secu>59) 
    { secu=0; minu++; }
    if(minu>59) 
    { minu=0; hour++; }
    if(hour>23) hour=0;
    if(secu==0) 
    {
    Serial.print(hour); Serial.print(":"); Serial.print(minu); Serial.print(":"); Serial.print(secu); 
    Serial.print(": IP "); Serial.println(WiFi.localIP().toString() );
    }
//  restore time and relays last states
//     if( WiFi.status() != WL_CONNECTED) {  wifi_connect(); } 
     if(updated==false && WiFi.status() == WL_CONNECTED)
     {
        http_get_finc( 1, "", 0); // sync time
//        http_get_finc( 3, "137", 0);
//        http_get_finc( 3, "135", 0);
        updated=true;
     } 
     
     tm_flag=false;
   
}

void key_reader()
{
   bool but = digitalRead(button12);
   if(but==but_last_state && but==false)
   {
    but_count++;
    digitalWrite(2, HIGH );  delay(60);
    digitalWrite(2, LOW ); delay(60);
    digitalWrite(2, HIGH );  delay(60);
    digitalWrite(2, LOW ); delay(60);    
    led_delay=0;     
    Serial.println(but_count);
   }   
   if(but!=but_last_state)
   {    
    Serial.print("But: "); Serial.println(but);
    if(but==true) // действие
    {
      if(but_count>2 && but_count<8)  
      { 
        Serial.println("Manual mode. Invert control");
        temp_auto=false;
        digitalWrite(relay5, !digitalRead(relay5));        
      }
      if(but_count>9) 
      {      
         Serial.println("Reset");
         ESP.reset();
      }
      but_count=0;
    }
   }
   but_last_state = but;
   digitalWrite(2, LOW );
   if(temp_auto==false && led_delay>6) 
   { digitalWrite(2, HIGH ); led_delay=0;     }
   if(temp_auto==true && led_delay>3){
    digitalWrite(2, HIGH );  led_delay=0;     }
   led_delay++;
  key_flag = false;       
}


void handleRoot() {
  server.send ( 200, "text/html", footer + www_menu + bottom );  
}

void handleNotFound() {
   String s = " ";
   bool logout = false;
    if(server.uri()=="/index.php" && server.args()>0 && server.authenticate("admin", pin.c_str() ) )
    {
      String temp_max1; String temp_delta1;  String temp_auto1;
     for ( uint8_t i = 0; i < server.args(); i++ ) {
  // settings
                           
           if(server.argName(i)=="temp_auto") {
            if(server.arg(i)=="on") temp_auto = true;  else  temp_auto = false; 
            }   
 // relays
    //      if(server.argName(i)=="r0") { if(server.arg(i)=="on")  digitalWrite(0, HIGH);  else digitalWrite(0, LOW); }
          if(server.argName(i)=="r5") { if(server.arg(i)=="on")  digitalWrite(relay5, HIGH);  else digitalWrite(relay5, LOW); } 
//          if(server.argName(i)=="tx")  if(server.arg(i)=="on") {  digitalWrite(1, LOW); pinMode(1, FUNCTION_0);  }
//                                     else {    pinMode(1, FUNCTION_3);  pinMode(1, OUTPUT); digitalWrite(1, LOW);  }
 
// reset
        if(server.argName(i) == "reset" && server.arg(i) == "run") ESP.reset(); //ESP.restart()

        if(server.argName ( i ) == "api_url_script_url"  ) {  
          if(api_url_script_url != server.arg ( i ))
          {
           api_url_script_url = server.arg ( i );
           Serial.println("Settings> api_url_script_url:" + api_url_script_url );
                int str_sz = api_url_script_url.length();
                EEPROM.put(30, str_sz);
                for (int i = 0;  i < str_sz;  i++) 
                    EEPROM.put(34+i, api_url_script_url[i]);
                boolean res1 = EEPROM.commit();
                 Serial.print("Write to FLASH api_url_script_url:" + api_url_script_url + " Size:"); 
                 Serial.print(str_sz);
                  if(res1==true)  Serial.println(" OK"); else Serial.println(" FALSE");
          }
         }
        if(server.argName ( i ) == "pin"  ) {  
          if(pin != server.arg ( i ))
          {
           pin = server.arg ( i );
           Serial.println("Settings>PIN:" + pin );
                EEPROM.put(0, pin.toInt());
                boolean res1 = EEPROM.commit();
                 Serial.print("Write to FLASH PIN: " + pin); 
                  if(res1==true)  Serial.println(" OK"); else Serial.println(" FALSE");
          }
         }
        if(server.argName ( i ) == "temp_max"  ) {  
          if(String(temp_max) != server.arg ( i ))
          {
          String val = server.arg ( i );
           temp_max = val.toInt();
           Serial.print("Settings> temp_max: "); Serial.print( temp_max );
            int eval = temp_max;
                EEPROM.put(4, eval);
                boolean res1 = EEPROM.commit();
                 Serial.print("Write to FLASH temp_max: " + String(temp_max)); 
                  if(res1==true)  Serial.println(" OK"); else Serial.println(" FALSE");
          }
         }
        if(server.argName ( i ) == "temp_delta"  ) {  
          if(String(temp_delta) != server.arg ( i ))
          {
          String val = server.arg ( i );
           temp_delta = val.toInt();
           Serial.print("Settings> i_bat_cc: "); Serial.print( temp_delta );
            int eval = temp_delta;
                EEPROM.put(8, eval);
                boolean res1 = EEPROM.commit();
                 Serial.print("Write to FLASH temp_delta: " + String(temp_delta)); 
                  if(res1==true)  Serial.println(" OK"); else Serial.println(" FALSE");
          }
         }          

       
     }  // arg for
     
   } // index
      s += www_menu + " <a href=index.php?logout=1>LogOut</a> <hr>\n";
      String xml = "<?xml version=\"1.0\" encoding=\"UTF-8\"?><params>";
      String json = "{";
      String s_tmp = "";
      s += "<table><tr><td>";
      if(temp_auto) s_tmp="off"; else s_tmp="on";
      s += "<form action=\"/index.php\" method=\"post\">temp_auto <input type=\"hidden\" name=\"temp_auto\" value=\""+s_tmp+"\"><input type=\"submit\" value=\""+s_tmp+"\"> </form>\n";        

      if(digitalRead(relay5)==1) s_tmp="off"; else s_tmp="on";
      s += "<form action=\"/index.php\" method=\"post\">Relay 5<input type=\"hidden\" name=\"r5\" value=\""+s_tmp+"\"><input type=\"submit\" value=\""+s_tmp+"\"> </form>\n";
  //     s += "<br />Relay 5: <a href=index.php?r5="+s_tmp+" >"+s_tmp+"</a><br />\n";
      xml += "<out5>"; xml +=digitalRead(relay5);   xml +="</out5>";
      json += "\"out5\": \""; json +=digitalRead(relay5);   json +="\",";
//      s += "Serial output: <a href=\"/index.php?tx=off\">TX off</a> <a href=\"/index.php?tx=on\">TX on</a><br />\n";

          for (int i = 0;  i < 8;  i++) {
            if(owaddr[i]!="")
            {
              s += "Temperature "; s += i;
              s += " ["; s += owaddr[i]; 
              s += "] : "; s += owtemp[i]; 
              s +=  "c<br />\n";
              xml += "<temp"; xml += i;  xml +=">";
              xml += owtemp[i];
              xml += "</temp"; xml += i;  xml +=">";
              json += "\"";  json += owaddr[i]; json += "\": "; 
              json += "\"";  json += owtemp[i]; json += "\",";
            }
          }
      s += "</td><td>&nbsp</td><td>";

      s += "<form action=\"/index.php\" method=\"post\"> \
      ApiURL: <input type=\"text\" name=\"api_url_script_url\" value=\""+api_url_script_url+"\" ><br /> \n";
      s += "PIN: <input type=\"text\" size=\"4\" name=\"pin\" value=\""+pin+"\" > <br />\n";       

      s += "<label for=\"temp_max\">temp_max (С)</label><input type=\"number\"  name=\"temp_max\" value=\""+String(temp_max)+"\" min=\"0\" max=\"40\" step=\"1\" id=\"temp_max\"><br />";
      xml += "<temp_max>"; xml+=temp_max;   xml+="</temp_max>";
      json += "\"temp_max\": \""; json +=temp_max;   json +="\",";   

      s += "<label for=\"temp_delta\">temp_delta С</label><input type=\"number\"  name=\"temp_delta\" value=\""+String(temp_delta)+"\" min=\"1\" max=\"5\" step=\"1\" id=\"temp_delta\"><br />";
      xml += "<temp_delta>"; xml+=temp_delta;   xml+="</temp_delta>";
      json += "\"temp_delta\": \""; json +=temp_delta;   json +="\",";         

  /*    String sel0,sel1="";  if(temp_auto==1) sel1="selected";  else sel0="selected";
      s += "<label for=\"temp_auto\">temp_auto</label> <select name=\"temp_auto\"> <option value=\"0\" " + sel0 + ">Disable</option> <option value=\"1\" " + sel1 + ">temp_auto</option>  </select>   <br />";
      xml += "<temp_auto>"; xml+=temp_auto;   xml+="</temp_auto>";
      json += "\"temp_auto\": \""; json +=temp_auto;   json +="\",";   
*/
      s += "&nbsp; &nbsp; <input type=\"submit\" value=\"SAVE\"> </form>"; 
      
      s += "<hr>FreeMem = ";      s += round(ESP.getFreeHeap()/1024);   s += " kB<br /> \n";
      s += "Uptime = ";    s += round(millis() / (1000 * 60 * 60));   s += " hours <br />\n";
      xml += "<Uptime>"; xml+=round(millis() / (1000 * 60 * 60));   xml+="</Uptime>";
      json += "\"Uptime\": \""; json +=round(millis() / (1000 * 60 * 60));   json +="\",";
      s += "MAC: "; s += chip_id; s += " <br /> \n";
      xml += "<MAC>"; xml+=chip_id;   xml+="</MAC>";
      json += "\"MAC\": \""; json +=chip_id;   json +="\"";
      s += "</td></tr></table><hr>";
       s += "<pre>";
//      s += "Available input Params: temp_max[int], temp_delta[int], temp_auto[on/off], r5[on/off] <br />\n";
      s += "URI: ";         s += server.uri();   s += "<br />\n";
      s += " Method: ";    s += ( server.method() == HTTP_GET ) ? "GET" : "POST";  s += "\n";
          for ( uint8_t i = 0; i < server.args(); i++ ) {  s += " " + server.argName ( i ) + ": " + server.arg ( i ) + "<br />\n";      }
      s += " Arguments: "; s += server.args();  s += "<br />\n";
      s += owstat; 
      s += "<br /></pre>\n";
      xml += "</params>";
      json += "}";
      
   if(server.uri()=="/index.php" )  
    {
      if (!server.authenticate("admin", pin.c_str() ))
      //Basic Auth Method with Custom realm and Failure Response
      //return server.requestAuthentication(BASIC_AUTH, www_realm, authFailResponse);
      //Digest Auth Method with realm="Login Required" and empty Failure Response
      //return server.requestAuthentication(DIGEST_AUTH);
      //Digest Auth Method with Custom realm and empty Failure Response
      //return server.requestAuthentication(DIGEST_AUTH, www_realm);
      //Digest Auth Method with Custom realm and Failure Response
    {
      return server.requestAuthentication(DIGEST_AUTH);
    }
     if(logout==false)
     server.send ( 200, "text/html", footer + s + bottom );
     else
     server.send ( 401, "text/html", footer + www_menu + "401: Unauthorized"+bottom);
  }

   if(server.uri()=="/index.xml")  server.send ( 200, "text/xml", xml ); 
   if(server.uri()=="/index.json")  server.send ( 200, "application/json", json ); 
}


void key_event()
{
  if(!tm_flag && !dht_get_flag) key_flag = true;
}


void dht_get_event()
{
  if(!tm_flag ) dht_get_flag = true;
}

void tm_event()
{
  tm_flag=true;
}

void setup() 
{
    Serial.begin(115200); 
    Serial.println("System inits");

      pinMode(5, OUTPUT); digitalWrite(relay5, LOW);
      pinMode(2, OUTPUT); digitalWrite(2, LOW); // BUILTLED
      pinMode(12, INPUT); 
       Serial.println("Set timers");
       dht_get.attach(302, dht_get_event);  // 937
       tim.attach(30.0, tm_event);
       key_r.attach(1.0, key_event);   //0.3
     //chip_id = ESP.getChipId();
     chip_id = WiFi.macAddress(); 
    Serial.println("WiFi manager start");
    //WiFiManager, Local intialization. Once its business is done, there is no need to keep it around
    WiFiManager wm;

  wm.setConfigPortalTimeout(30); // auto close configportal after n seconds
    bool res;
    // res = wm.autoConnect(); // auto generated AP name from chipid
    // res = wm.autoConnect("AutoConnectAP"); // anonymous ap
    res = wm.autoConnect("ESP-AP","12344321"); // password protected ap

    if(!res) {
        Serial.println("Failed to connect");
        // ESP.restart();
    } 
    else {
        //if you get here you have connected to the WiFi    
        Serial.println("connected...! :)");
    }
      delay(1000);
/////////////////// eeprom
      Serial.println("Read EEPROM settings");
      EEPROM.begin(1024); 
//      карта значений 
      int addr, val;
      EEPROM.get(0, val); 
      if(val<10000) pin=String(val); 
      Serial.println("PIN: "+pin);    val=0;

      EEPROM.get(4, val); if(val<500)   temp_max=val; Serial.println("temp_max: " + String(val)); val=0;
      EEPROM.get(8, val); if(val<500)   temp_delta=val; Serial.println("temp_delta: " + String(val)); val=0;

      Serial.print("reading api_script_url.. Size:");
      EEPROM.get(30, val);
      Serial.println(val); 
         char t;
      if(val>0 && val<150)
        for (int i = 0;  i < val;  i++)
        { EEPROM.get(34+i, t);  
          api_url_script_url+=t;            
        }
      Serial.println(api_url_script_url);
         int slsh=0;
         for (int i = 1;  i < api_url_script_url.length();  i++) {
          if(api_url_script_url[i]=='/') slsh++;
          if(slsh==2 && api_url_script_url[i]!='/') 
                host += api_url_script_url[i];
          if(slsh>2 ) url += api_url_script_url[i];
         }
//   Serial.print(api_url_script_url.length());   Serial.println(api_url_script_url);
      Serial.println("Host:" + host +" url" + url + ".  ");
      if(api_url_script_url.substring(0,4)!="http") 
      { Serial.println("Host not valid:" + api_url_script_url.substring(0,5)); host=""; 
      }

               
    // Start the server
  server.on ( "/", handleRoot );
  //server.on ( "/test.svg", drawGraph );
  //server.on ( "/inline", []() {    server.send ( 200, "text/plain", "this works as well" );   } );
  server.onNotFound ( handleNotFound );    
  server.begin();
  snprintf ( footer, 400,
          "<html> <head> <title>Wemos D1 - SOLARs</title>\
  <style> body { background-color: #cccccc; font-family: Arial, Helvetica, Sans-Serif; Color: #000088; }  </style>\
   <meta name=\"viewport\" content=\"width=device-width, initial-scale=1\"> \
   </head> <body> \ 
   <h2>Wemos D1 - thermostat</h2>");
   snprintf ( bottom, 30, "</body> </html>"  );  
   
  Serial.println(chip_id +"Server started");

  // Print the IP address
  Serial.println(WiFi.localIP());
  
  sensors.begin();  // Start up the library
          owstat = "";        
          owstat += sensors.getDeviceCount() ; owstat += " Devices";
          sensors.requestTemperatures(); 
          for (int i = 0;  i < sensors.getDeviceCount();  i++) {    
             sensors.getAddress(deviceAddress, i);
             String addr = "";
             for (uint8_t u = 0; u < 8; u++) 
                addr += deviceAddress[u], HEX;
             owaddr[i] = addr;
             owtemp[i] = sensors.getTempCByIndex(i);
          }
          for (int i = 0;  i < 8;  i++) {    
             owstat += "Sensor ";  owstat += i;
             owstat += "-"; owstat += owaddr[i];
             owstat += "-"; owstat += owtemp[i];
             owstat += "; ";
          }
              
              for (int k = 0;  k < 3;  k++) {
                delay(1000); 
                sensors.requestTemperatures(); 
                temp_arr[k] = sensors.getTempCByIndex(0);
                Serial.println(temp_arr[k]);
                        
              }
        
 }
 

void loop() 
{    
     if(tm_flag)       time_finc(); 
     if(key_flag && !dht_get_flag && !tm_flag)       key_reader(); 
     if(!key_flag && !dht_get_flag && !tm_flag) 
     {//  ArduinoOTA.handle(); 
      server.handleClient();// http_server();
     }
  
     if (!key_flag && !tm_flag && dht_get_flag) 
     {
      Serial.println("dht_get_flag");
// check wifi
    if(WiFi.status() != WL_CONNECTED) { 
      Serial.println("Not connected");
       //    wifi_connect(); 
           } else 
      { 
     //                     http_get_finc( 2, "141", digitalRead(0)); 
     //                     http_get_finc( 2, "142", digitalRead(2));
      time_update++;
          if(time_update>10)
          {
               http_get_finc( 1, "", 0); // sync time  
               time_update=0;
          }
      }  
          for (int i = 0;  i < 8;  i++) { 
            owaddr[i]=""; owtemp[i]=0;
          }
          owstat = "";        
          owstat += sensors.getDeviceCount() ; owstat += " Devices";
          sensors.requestTemperatures(); 
          for (int i = 0;  i < sensors.getDeviceCount();  i++) {    
             sensors.getAddress(deviceAddress, i);
             String addr = "";
             for (uint8_t u = 0; u < 8; u++) 
                addr += deviceAddress[u], HEX;
             owaddr[i] = addr;
             owtemp[i] = sensors.getTempCByIndex(i);
             String id = "4"; id += i;
           //  if(owtemp[i]<40 && owtemp[i]>-40)
           //  http_get_finc( 2, id, owtemp[i]); 
             Serial.print(i); Serial.print(owtemp[i]);  Serial.println(" c");
             
             if(temp_auto && i==0 && owtemp[i]<40 && owtemp[i]>-40)   // auto temp control
             {  
              temp_arr[temp_index] = owtemp[i];
              float temp_summ = 0; 
               Serial.print("Auto temp. arr:");
              for (int k = 0;  k < 3;  k++) {
                temp_summ = temp_summ + temp_arr[k]; 
                Serial.print(temp_arr[k]);  Serial.print("-");
              }
              Serial.print(" approx:");
              temp_real = temp_summ / 3;
              Serial.print(temp_real);
              if(temp_index==2) { temp_index = 0;  } else temp_index++;              
                  if(temp_real>=(temp_max+abs(temp_delta/2))) { Serial.println(" io 5 disable"); digitalWrite(relay5, LOW); }
                  if(temp_real<=(temp_max-abs(temp_delta/2))) { Serial.println(" io 5 enable"); digitalWrite(relay5, HIGH); }
             }
          }  
          
       dht_get_flag = false;
     }          
}