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Hieromon / AutoConnect

An Arduino library for ESP8266/ESP32 WLAN configuration at runtime with the Web interface

Home Page:https://hieromon.github.io/AutoConnect/

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esp32ap beg a password

tripod2 opened this issue · comments

commented

using android and esp32-s2/esp32cam
i see the esp32ap on smartphone and when i connect it beg password
using 123456789 output wrong password
https://github.com/Hieromon/AutoConnect/tree/master/examples)/WebCamServer/
https://github.com/Hieromon/AutoConnect/tree/master/examples)/FetchLED/

commented

This could be a problem known as captive portal limitation on some android platforms, which may be avoided by adjusting the IP address of the DNS activated in SoftAP for android.

Try AutoConnectConfig::apip with 8.8.4.4.

Also, You can take advantage of the following verification sketch to make sure your android device is compliant. This is a captive portal demonstration that the ESP32 Arduino core has included as an example for the DNS Server library, with the addition of password authentication.

#include <Arduino.h>
#include <WiFi.h>
#include <DNSServer.h>

const byte DNS_PORT = 53;
IPAddress apIP(8,8,4,4);
DNSServer dnsServer;
WiFiServer server(80);

String responseHTML = ""
  "<!DOCTYPE html><html><head><title>CaptivePortal</title></head><body>"
  "<h1>Hello World!</h1><p>This is a captive portal example. All requests will "
  "be redirected here.</p></body></html>";

void setup() {
  delay(1000);
  Serial.begin(115200);
  Serial.println();

  WiFi.mode(WIFI_AP);
  WiFi.softAP("esp32ap", "12345678");
  WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));

  // if DNSServer is started with "*" for domain name, it will reply with
  // provided IP to all DNS request
  dnsServer.start(DNS_PORT, "*", apIP);

  server.begin();

  Serial.println("Server started");
}

void loop() {
  dnsServer.processNextRequest();
  WiFiClient client = server.available();   // listen for incoming clients

  if (client) {
    String currentLine = "";
    while (client.connected()) {
      if (client.available()) {
        char c = client.read();
        if (c == '\n') {
          if (currentLine.length() == 0) {
            client.println("HTTP/1.1 200 OK");
            client.println("Content-type:text/html");
            client.println();
            client.print(responseHTML);
            break;
          } else {
            currentLine = "";
          }
        } else if (c != '\r') {
          currentLine += c;
        }
      }
    }
    client.stop();
  }
}

Combine this sketch with your android device and open esp32ap. The password is 12345678. If the issue reproduces, the SoftAP IP address is not compatible with the Android platform.