WPA2 - Enterprise

Eduroam sketch - ESP32

  • Doska preukazuje RADIUS serveru meno a heslo prostredníctvom AP - prístupového bodu
  • Pri pripojení z domácej organizácie stačí zadať identitu bez univerzity a domény. Pri pripojení z inej organizácie je nutné použiť identitu vrátane univerzity a domény
  • #include "esp_wpa2.h"
    #include <WiFi.h>
    #define EAP_IDENTITY "login@university.domain" //eduroam login --> identity@youruniversity.domain
    #define EAP_PASSWORD "password" //your Eduroam password
    String line; //variable for response
    const char* ssid = "eduroam"; // Eduroam SSID
    const char* host = "arduino.php5.sk"; //external server domain for HTTP connection after authentification
    void setup() {
      Serial.begin(115200);
      delay(10);
      Serial.println();
      Serial.print("Connecting to network: ");
      Serial.println(ssid);
      WiFi.disconnect(true);  //disconnect form wifi to set new wifi connection
      WiFi.mode(WIFI_STA);
      esp_wifi_sta_wpa2_ent_set_identity((uint8_t *)EAP_IDENTITY, strlen(EAP_IDENTITY)); //provide identity
      esp_wifi_sta_wpa2_ent_set_username((uint8_t *)EAP_IDENTITY, strlen(EAP_IDENTITY)); //provide username
      esp_wifi_sta_wpa2_ent_set_password((uint8_t *)EAP_PASSWORD, strlen(EAP_PASSWORD)); //provide password
      esp_wpa2_config_t config = WPA2_CONFIG_INIT_DEFAULT(); //set config to default (fixed for 2018 and Arduino 1.8.5+)
      esp_wifi_sta_wpa2_ent_enable(&config); //set config to enable function (fixed for 2018 and Arduino 1.8.5+)
      WiFi.begin(ssid); //connect to Eduroam function
      WiFi.setHostname("ESP32Name"); //set Hostname for your device - not neccesary
      while (WiFi.status() != WL_CONNECTED) {
        delay(500);
        Serial.print(".");
      }
      Serial.println("");
      Serial.println("WiFi connected");
      Serial.println("IP address set: "); 
      Serial.println(WiFi.localIP()); //print LAN IP
    
    }
    void loop() {
      delay(5000);
      if (WiFi.status() != WL_CONNECTED) { //if we lost connection, retry
        WiFi.begin(ssid);
        delay(500);        
    }
      Serial.print("Connecting to website: ");
      Serial.println(host);
      WiFiClient client;
      if (!client.connect(host, 80)) { // HTTP connection on port 80
        Serial.println("Connection lost! - Failed response");
      }
      String url = "/rele/rele1.txt"; //read .txt file    
      Serial.print("Requesting URL: ");
      Serial.println(url);
      client.print(String("GET ") + url + " HTTP/1.1\r\n" + "Host: " + host + "\r\n" + "Connection: close\r\n\r\n");
      unsigned long timeout = millis();
      while (client.available() == 0) {
        if (millis() - timeout > 5000) {
          Serial.println("Client timed out! - retry");
        }
      }
      while(client.available()) {
        line = client.readStringUntil('\n');
        Serial.println(line);  
      }
      Serial.println();
      Serial.println("End connection");
      client.stop();
    }