ESP32 Captive Portal Search Engine Code
#include <WiFi.h> #include <DNSServer.h> #include <WebServer.h> #include <HTTPClient.h> #include <WiFiClientSecure.h> #include <ArduinoJson.h> // ---------------- USER CONFIGURATION ---------------- // Backend Router (Internet connection for ESP32) const char* sta_ssid = "Airtel_X"; // Aapka router ka naam const char* sta_pass = "Gau@0369"; // Aapka router ka password // ESP32 Access Point (Network name for users) const char* ap_ssid = "ESP32 SEARCH ENGINE"; // AP Name jo mobile mein show hoga // ---------------------------------------------------- const byte DNS_PORT = 53; DNSServer dnsServer; WebServer server(80); // Function to safely encode search queries for URL (e.g. "Elon Musk" -> "Elon%20Musk") String urlEncode(String str) { String encodedString = ""; char c; char code0; char code1; for (int i = 0; i < str.lengt...