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* Add support for newer mobile OS changes. Took me quite a while to figure this out, but according to this issue (https://github.com/espressif/arduino-esp32/issues/1037), in order to get a captive notification to show or the popup to open, the DNS server must resolve to a public IP. It will not work with a pivate one (e.g. 192.168.4.1). On Android, a notification ("Register with Network") is displayed in top left notification bar. On IOS, the login popup is displayed. * Add support for newer mobile OS changes. Took me quite a while to figure this out, but according to this issue (espressif/arduino-esp32#1037), in order to get a captive notification to show or the popup to open, the DNS server must resolve to a public IP. It will not work with a pivate one (e.g. 192.168.4.1). On Android, a notification ("Register with Network") is displayed in top left notification bar. On IOS, the login popup is displayed.
35 lines
1009 B
C++
35 lines
1009 B
C++
#include <ESP8266WiFi.h>
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#include <DNSServer.h>
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#include <ESP8266WebServer.h>
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const byte DNS_PORT = 53;
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IPAddress apIP(172, 217, 28, 1);
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DNSServer dnsServer;
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ESP8266WebServer webServer(80);
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String responseHTML = ""
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"<!DOCTYPE html><html><head><title>CaptivePortal</title></head><body>"
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"<h1>Hello World!</h1><p>This is a captive portal example. All requests will "
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"be redirected here.</p></body></html>";
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void setup() {
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WiFi.mode(WIFI_AP);
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WiFi.softAPConfig(apIP, apIP, IPAddress(255, 255, 255, 0));
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WiFi.softAP("DNSServer CaptivePortal example");
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// if DNSServer is started with "*" for domain name, it will reply with
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// provided IP to all DNS request
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dnsServer.start(DNS_PORT, "*", apIP);
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// replay to all requests with same HTML
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webServer.onNotFound([]() {
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webServer.send(200, "text/html", responseHTML);
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});
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webServer.begin();
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}
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void loop() {
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dnsServer.processNextRequest();
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webServer.handleClient();
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}
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