A8 Ventilation control - Printable Version

Code:
/*

   This example show how to ping a remote machine using it's hostname

   Based on ESP8266-ping project



   https://github.com/bluemurder/esp8266-ping/tree/master



   NOTE:

   bool accessible=pinger.Ping(remote_host);

   This construction ALWAYS return "true" when using IP address

   in my tests this construction return "false" only when DNS name could not be resolved, that why i use response analise to set variable HAAccesible "true" or "false" in function pinger.OnReceive([](const PingerResponse& response)

   

   NOTE2:

   this project does not work in Arduino IDE v2.x, in Arduino IDE v1.8.x it is works properly 

*/



#include <Pinger.h>

#include <ESP8266WiFi.h>

extern "C"

{

#include <lwip/icmp.h> // needed for icmp packet definitions

}



// Set global to avoid object removing after setup() routine

Pinger pinger;



bool HAAccessible = false;

const char* ssid     = "stranger";

const char* password = "1234567890abcdef1234567890";

const char*remote_host = "192.168.7.6"; //Home Assistant host

int pinOut = 13; // D7 ESP8266 GPIO pin

bool stationConnected = false;

void setup()

{

  pinMode(pinOut, OUTPUT);

  // Connect to WiFi access point

  stationConnected = WiFi.begin(ssid, password);

  // Begin serial connection at 9600 baud

  Serial.begin(9600);



  // Check if connection errors

  if (!stationConnected)

  {

    Serial.println("Error, unable to connect specified WiFi network.");

  }



  // Wait connection completed

  Serial.print("Connecting to AP...");

  while (WiFi.status() != WL_CONNECTED)

  {

    delay(500);

    Serial.print(".");

  }

  Serial.print("WiFi connected \n");

}

  void loop()

  {

    //==========================

     pinger.OnReceive([](const PingerResponse& response)

  {

    if (response.ReceivedResponse)

    {

      Serial.printf(

        "Reply from %s: bytes=%d time=%lums TTL=%d\n",

        response.DestIPAddress.toString().c_str(),

        response.EchoMessageSize - sizeof(struct icmp_echo_hdr),

        response.ResponseTime,

        response.TimeToLive);

        HAAccessible=true;

    }

    else

    {

      Serial.printf("Request timed out.\n");

      HAAccessible=false;

    }



    // Return true to continue the ping sequence.

    // If current event returns false, the ping sequence is interrupted.

    return true;

  });

  

  pinger.OnEnd([](const PingerResponse& response)

  {

    // Evaluate lost packet percentage

    float loss = 100;

    if(response.TotalReceivedResponses > 0)

    {

      loss = (response.TotalSentRequests - response.TotalReceivedResponses) * 100 / response.TotalSentRequests;

    }

    

    // Print packet trip data

    Serial.printf(

      "Ping statistics for %s:\n",

      response.DestIPAddress.toString().c_str());

    Serial.printf(

      "    Packets: Sent = %lu, Received = %lu, Lost = %lu (%.2f%% loss),\n",

      response.TotalSentRequests,

      response.TotalReceivedResponses,

      response.TotalSentRequests - response.TotalReceivedResponses,

      loss);



    // Print time information

    if(response.TotalReceivedResponses > 0)

    {

      Serial.printf("Approximate round trip times in milli-seconds:\n");

      Serial.printf(

        "    Minimum = %lums, Maximum = %lums, Average = %.2fms\n",

        response.MinResponseTime,

        response.MaxResponseTime,

        response.AvgResponseTime);

    }

    

    // Print host data

    Serial.printf("Destination host data:\n");

    Serial.printf(

      "    IP address: %s\n",

      response.DestIPAddress.toString().c_str());

    if(response.DestMacAddress != nullptr)

    {

      Serial.printf(

        "    MAC address: " MACSTR "\n",

        MAC2STR(response.DestMacAddress->addr));

    }

    if(response.DestHostname != "")

    {

      Serial.printf(

        "    DNS name: %s\n",

        response.DestHostname.c_str());

    }



    return true;

  });

  //================================================

    

    while (WiFi.status() == WL_CONNECTED)

    {

      pinger.Ping(remote_host); 

      Serial.println(HAAccessible);

      if (HAAccessible==false)

      {

         digitalWrite(pinOut, LOW);

        Serial.println("HA NOT Accessible.");

        delay (10000);

      }

      else

      {

        digitalWrite(pinOut, HIGH);

        Serial.println("HA Accessible.");

        delay (10000);

      }

    }

     digitalWrite(pinOut, LOW);

     HAAccessible=false;

      Serial.println("HA NOT Accessible because WiFi disconnected.");

     

      //reconnect to wi-fi;

      stationConnected = WiFi.begin(ssid, password);

      // Check if connection errors

      if (!stationConnected)

      {

        Serial.println("Error, unable to connect specified WiFi network.");

      }



      // Wait connection completed

      Serial.print("Reconnecting to AP...");

      while (WiFi.status() != WL_CONNECTED)

      {

        delay(500);

        Serial.print(".");

      }

      Serial.print("WiFi connected \n");



  }