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| 1 | +//Sketch edited by: Martin Chlebovec |
| 2 | +//Personal website: https://arduino.php5.sk |
| 3 | +#include "esp_wpa2.h" |
| 4 | +#include <WiFi.h> |
| 5 | +#define EAP_IDENTITY "login@university.domain" //eduroam login --> identity@youruniversity.domain |
| 6 | +#define EAP_PASSWORD "password" //your Eduroam password |
| 7 | +String line; //variable for response |
| 8 | +const char* ssid = "eduroam"; // Eduroam SSID |
| 9 | +const char* host = "arduino.php5.sk"; //external server domain for HTTP connection after authentification |
| 10 | +void setup() { |
| 11 | + Serial.begin(115200); |
| 12 | + delay(10); |
| 13 | + Serial.println(); |
| 14 | + Serial.print("Connecting to network: "); |
| 15 | + Serial.println(ssid); |
| 16 | + WiFi.disconnect(true); //disconnect form wifi to set new wifi connection |
| 17 | + esp_wifi_sta_wpa2_ent_set_identity((uint8_t *)EAP_IDENTITY, strlen(EAP_IDENTITY)); //provide identity |
| 18 | + esp_wifi_sta_wpa2_ent_set_username((uint8_t *)EAP_IDENTITY, strlen(EAP_IDENTITY)); //provide username |
| 19 | + esp_wifi_sta_wpa2_ent_set_password((uint8_t *)EAP_PASSWORD, strlen(EAP_PASSWORD)); //provide password |
| 20 | + esp_wpa2_config_t config = WPA2_CONFIG_INIT_DEFAULT(); //set config to default (fixed for 2018 and Arduino 1.8.5+) |
| 21 | + esp_wifi_sta_wpa2_ent_enable(&config); //set config to enable function (fixed for 2018 and Arduino 1.8.5+) |
| 22 | + WiFi.begin(ssid); //connect to Eduroam function |
| 23 | + WiFi.setHostname("ESP32Name"); //set Hostname for your device - not neccesary |
| 24 | + while (WiFi.status() != WL_CONNECTED) { |
| 25 | + delay(500); |
| 26 | + Serial.print("."); |
| 27 | + } |
| 28 | + Serial.println(""); |
| 29 | + Serial.println("WiFi connected"); |
| 30 | + Serial.println("IP address set: "); |
| 31 | + Serial.println(WiFi.localIP()); //print LAN IP |
| 32 | + |
| 33 | +} |
| 34 | +void loop() { |
| 35 | + delay(5000); |
| 36 | + if (WiFi.status() != WL_CONNECTED) { //if we lost connection, retry |
| 37 | + WiFi.begin(ssid); |
| 38 | + delay(500); |
| 39 | +} |
| 40 | + Serial.print("Connecting to website: "); |
| 41 | + Serial.println(host); |
| 42 | + WiFiClient client; |
| 43 | + if (!client.connect(host, 80)) { // HTTP connection on port 80 |
| 44 | + Serial.println("Connection lost! - Failed response"); |
| 45 | + } |
| 46 | + String url = "/rele/rele1.txt"; //read .txt file |
| 47 | + Serial.print("Requesting URL: "); |
| 48 | + Serial.println(url); |
| 49 | + client.print(String("GET ") + url + " HTTP/1.1\r\n" + "Host: " + host + "\r\n" + "Connection: close\r\n\r\n"); |
| 50 | + unsigned long timeout = millis(); |
| 51 | + while (client.available() == 0) { |
| 52 | + if (millis() - timeout > 5000) { |
| 53 | + Serial.println("Client timed out! - retry"); |
| 54 | + } |
| 55 | + } |
| 56 | + while(client.available()) { |
| 57 | + line = client.readStringUntil('\n'); |
| 58 | + Serial.println(line); |
| 59 | + } |
| 60 | + Serial.println(); |
| 61 | + Serial.println("End connection"); |
| 62 | + client.stop(); |
| 63 | +} |
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