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c7fa251 Nov 19, 2018
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#include <WiFi.h> //Wifi library
#include "esp_wpa2.h" //wpa2 library for connections to Enterprise networks
#define EAP_IDENTITY "login" //if connecting from another corporation, use identity@organisation.domain in Eduroam
#define EAP_PASSWORD "password" //your Eduroam password
const char* ssid = "eduroam"; // Eduroam SSID
const char* host = "arduino.php5.sk"; //external server domain for HTTP connection after authentification
int counter = 0;
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); //init wifi mode
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 --> identity and username is same
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 settings to default
esp_wifi_sta_wpa2_ent_enable(&config); //set config settings to enable function
WiFi.begin(ssid); //connect to wifi
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
counter++;
if(counter>=60){ //after 30 seconds timeout - reset board
ESP.restart();
}
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address set: ");
Serial.println(WiFi.localIP()); //print LAN IP
}
void loop() {
if (WiFi.status() == WL_CONNECTED) { //if we are connected to Eduroam network
counter = 0; //reset counter
Serial.println("Wifi is still connected with IP: ");
Serial.println(WiFi.localIP()); //inform user about his IP address
}else if (WiFi.status() != WL_CONNECTED) { //if we lost connection, retry
WiFi.begin(ssid);
}
while (WiFi.status() != WL_CONNECTED) { //during lost connection, print dots
delay(500);
Serial.print(".");
counter++;
if(counter>=60){ //30 seconds timeout - reset board
ESP.restart();
}
}
Serial.print("Connecting to website: ");
Serial.println(host);
WiFiClient client;
if (client.connect(host, 80)) {
String url = "/rele/rele1.txt";
client.print(String("GET ") + url + " HTTP/1.1\r\n" + "Host: " + host + "\r\n" + "User-Agent: ESP32\r\n" + "Connection: close\r\n\r\n");
while (client.connected()) {
String line = client.readStringUntil('\n');
if (line == "\r") {
break;
}
}
String line = client.readStringUntil('\n');
Serial.println(line);
}else{
Serial.println("Connection unsucessful");
}
}