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Description
It would be nice that if the AP is opened, all requests to all URLs would get redirected to the configuration page. See the CaptivePortal example:
#include <ESP8266WiFi.h>
#include <DNSServer.h>
#include <ESP8266WebServer.h>
const byte DNS_PORT = 53;
IPAddress apIP(192, 168, 1, 1);
DNSServer dnsServer;
ESP8266WebServer webServer(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() {
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();
}
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