How to port this to esp32 (Captive Portal)

Using Arduino Microcontrollers
1

Hi i need to change this program from esp8266 to esp32 or make one similar for the same application but at the moment of changing the libraries the code compile and chargue on the esp but doestn work and the esp32 begin to overheat doing nothing

#include <ESP8266WiFi.h>
#include <DNSServer.h>
#include <ESP8266WebServer.h>

const byte DNS_PORT = 53;
IPAddress apIP(172, 217, 28, 1);
DNSServer dnsServer;
ESP8266WebServer webServer(80);

String responseHTML = ""
                      "<!DOCTYPE html><html lang='en'><head>"
                      "<meta name='viewport' content='width=device-width'>"
                      "<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() {
  WiFi.mode(WIFI_AP);
  WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));
  WiFi.softAP("DNSServer CaptivePortal example");

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

  // replay to all requests with same HTML
  webServer.onNotFound([]() {
    webServer.send(200, "text/html", responseHTML);
  });
  webServer.begin();
}

void loop() {
  dnsServer.processNextRequest();
  webServer.handleClient();
}

this is how i tried to port the code but doestn work

#include <ESP_WiFiManager.h>
#include <WiFi.h>


const byte DNS_PORT = 53;
IPAddress apIP(172, 217, 28, 1);
DNSServer dnsServer;
WebServer webServer(80);

String responseHTML = ""
                      "<!DOCTYPE html><html lang='en'><head>"
                      "<meta name='viewport' content='width=device-width'>"
                      "<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() {
  WiFi.mode(WIFI_AP);
  WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));
  WiFi.softAP("DNSServer CaptivePortal example");

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

  // replay to all requests with same HTML
  webServer.onNotFound([]() {
    webServer.send(200, "text/html", responseHTML);
  });
  webServer.begin();
}

void loop() {
  dnsServer.processNextRequest();
  webServer.handleClient();
}
2

The easier you make it to read and copy the code the more likely it is that you will get help

Please follow the advice given in the link below when posting code

1 Like
3

Please post your best effort at changing the code to work on an ESP32

1 Like
4

thank you, i already edit the post

5

Moderator:
Please, use English forum.
Moved to English Microcontroller Section.

6

As far as I can tell most of the ESP8266 examples have been ported to ESP32. The examples are included with the ESP32 board package.

For example, after installing the ESP32 board package in the IDE, click on File > Examples > DNSServer > CaptivePortal.

7

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