ESP8266 Community Forum

- Thu Nov 09, 2017 7:28 am #71680 Hello people!

I have a project that have one ESP8266 as AP and others ESP8266 as STA.
As it is obvious, the ESP stations conect on ESP AP.

When the station start and conect to AP, it send a hello with some parameters behind httpClient.
Look this:

Code: Select all#include "Arduino.h"
#include <EEPROM.h>
#include <ESP8266WiFi.h>
#include <ESP8266mDNS.h>
#include <FS.h>
#include <ESPAsyncTCP.h>
#include <ESPAsyncWebServer.h>
#include "AsyncJson.h"
#include "ArduinoJson.h"
#include <StreamString.h>
#include "TimeLib.h"
#include <ESP8266HTTPClient.h>
#include <stdio.h>
#include "lib.h"
#include "version.h"
#include "wifihwtypes.h"


void WiFiDCC::hello() {
#ifndef RELEASE
  Serial.printf_P( pgm_INFunction, "hello()", ESP.getFreeHeap() );
#endif

  HTTPClient http;
  String payload;
  String url;

  url = "http://" + wifi.gateway.toString() + "/gsr?qt=run&q=hello&hwType=" + hw.HW.Type + "&hwSN=" + lib.urlencode(searchSN()) + "&IP=" + wifi.IP.toString() + "&hwName=" + lib.urlencode(hw.hwName);

#ifndef RELEASE
  Serial.println(url);
#endif

  if ( WiFi.status() == WL_CONNECTED ) {
    http.begin(url);
    int httpCode = http.GET();
#ifndef RELEASE
    if (httpCode < 0) {
      Serial.printf("\n[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
    }
#endif

    payload = http.getString();
    http.end();

#ifndef RELEASE
    Serial.print("payload: ");
    Serial.println( payload );
#endif

    DynamicJsonBuffer jsonBuffer(32);
    JsonObject& root = jsonBuffer.parseObject(payload);
    IPWiFiStation = lib.strToIP(root["ip"]);
  } else {
#ifndef RELEASE
    Serial.println( F("Desconectado enquanto iniciava hello()") );
#endif
  }

  payload = String();
  url = String();


#ifndef RELEASE
  Serial.printf_P( pgm_OUTFunction, "hello()", ESP.getFreeHeap() );
#endif
}


The problem is: The hello() function works perfectly at the first time that is called.
Next call of hello(), I receive: -1 Connection Refused

Somebody have a tip, trick, a magic, or who know the answer for this?

Thanks a lot!

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Ricardo B. Pacheco