ESP32_POE_ISO ethernet example doesnt work

[Bart_123]

I copied the Ethernet example from the Olimex side into the Arduino IDE but I get errors. The link that I used is ==>
"arduino-esp32/libraries/Ethernet/examples/ETH_LAN8720/ETH_LAN8720.ino"
the errors are the following:

C:\Users\bno\Documents\Home_Assistant\arduino_sketch\test\test_met_eth\eth_test\eth_test.ino: In function 'void WiFiEvent(system_event_id_t)':
eth_test:12:10: error: 'ARDUINO_EVENT_ETH_START' was not declared in this scope
    case ARDUINO_EVENT_ETH_START:
          ^
eth_test:17:10: error: 'ARDUINO_EVENT_ETH_CONNECTED' was not declared in this scope
    case ARDUINO_EVENT_ETH_CONNECTED:
          ^
eth_test:20:10: error: 'ARDUINO_EVENT_ETH_GOT_IP' was not declared in this scope
    case ARDUINO_EVENT_ETH_GOT_IP:
          ^
eth_test:33:10: error: 'ARDUINO_EVENT_ETH_DISCONNECTED' was not declared in this scope
    case ARDUINO_EVENT_ETH_DISCONNECTED:
          ^
eth_test:37:10: error: 'ARDUINO_EVENT_ETH_STOP' was not declared in this scope
    case ARDUINO_EVENT_ETH_STOP:
          ^
exit status 1
'ARDUINO_EVENT_ETH_START' was not declared in this scope



I have copied the code below to show ==>

/*
    This sketch shows the Ethernet event usage
*/

#include <ETH.h>

static bool eth_connected = false;

void WiFiEvent(WiFiEvent_t event)
{
  switch (event) {
    case ARDUINO_EVENT_ETH_START:
      Serial.println("ETH Started");
      //set eth hostname here
      ETH.setHostname("esp32-ethernet");
      break;
    case ARDUINO_EVENT_ETH_CONNECTED:
      Serial.println("ETH Connected");
      break;
    case ARDUINO_EVENT_ETH_GOT_IP:
      Serial.print("ETH MAC: ");
      Serial.print(ETH.macAddress());
      Serial.print(", IPv4: ");
      Serial.print(ETH.localIP());
      if (ETH.fullDuplex()) {
        Serial.print(", FULL_DUPLEX");
      }
      Serial.print(", ");
      Serial.print(ETH.linkSpeed());
      Serial.println("Mbps");
      eth_connected = true;
      break;
    case ARDUINO_EVENT_ETH_DISCONNECTED:
      Serial.println("ETH Disconnected");
      eth_connected = false;
      break;
    case ARDUINO_EVENT_ETH_STOP:
      Serial.println("ETH Stopped");
      eth_connected = false;
      break;
    default:
      break;
  }
}

void testClient(const char * host, uint16_t port)
{
  Serial.print("\nconnecting to ");
  Serial.println(host);

  WiFiClient client;
  if (!client.connect(host, port)) {
    Serial.println("connection failed");
    return;
  }
  client.printf("GET / HTTP/1.1\r\nHost: %s\r\n\r\n", host);
  while (client.connected() && !client.available());
  while (client.available()) {
    Serial.write(client.read());
  }

  Serial.println("closing connection\n");
  client.stop();
}

void setup()
{
  Serial.begin(115200);
  WiFi.onEvent(WiFiEvent);
  ETH.begin();
}


void loop()
{
  if (eth_connected) {
    testClient("google.com", 80);
  }
  delay(10000);
}

[LubOlimex]

Can you point me where exactly did you download this example from? Which page exactly contains the link to download it?

Meanwhile check this document: https://www.olimex.com/Products/IoT/ESP32/_resources/Arudino-ESP32.txt

[Bart_123]

Dear LubOlimex,

Thanks for the fast reply.
Apparently I got the software from the Arduino site.
I used the link you advised me and I saw the following difference in
the software.
The enumeration in the events are different:
SYSTEM_EVENT_ETH_START:
SYSTEM_EVENT_ETH_CONNECTED:
.....
.....
In the software I used, it was
ARDUINO_EVENT_ETH_START:
ARDUINO_EVENT_ETH_CONNECTED:
.....
.....

I changed all "ARDUINO" with "SYSTEM" and everything works fine.

Again, thanks for the fast and good support.

Bart.

[Drjaymz]

Dear LubOlimex,

Thanks for the fast reply.
Apparently I got the software from the Arduino site.
I used the link you advised me and I saw the following difference in
the software.
The enumeration in the events are different:
SYSTEM_EVENT_ETH_START:
SYSTEM_EVENT_ETH_CONNECTED:
.....
.....
In the software I used, it was
ARDUINO_EVENT_ETH_START:
ARDUINO_EVENT_ETH_CONNECTED:
.....
.....

I changed all "ARDUINO" with "SYSTEM" and everything works fine.

Again, thanks for the fast and good support.

Bart.

For anyone else - yes the example needs updating not your framework. This changed in 2021. 

Example should be:

Code Select Expand

void WiFiEvent(WiFiEvent_t event)
{
  //debug.println("info: WiFiEvent Received");
  switch (event)
  {
  case ARDUINO_EVENT_ETH_START:
    debug.println("ETH Started");
    // set eth hostname here
    ETH.setHostname("esp32-ethernet");
    break;
  case ARDUINO_EVENT_ETH_CONNECTED:
    debug.println("ETH Connected");
    break;
  case ARDUINO_EVENT_ETH_GOT_IP:
    debug.print("ETH MAC: ");
    debug.print(ETH.macAddress());
    debug.print(", IPv4: ");
    debug.print(ETH.localIP());
    if (ETH.fullDuplex())
    {
      debug.print(", FULL_DUPLEX");
    }
    debug.print(", ");
    debug.print(ETH.linkSpeed());
    debug.println("Mbps");
    eth_connected = true;
    break;
  case ARDUINO_EVENT_ETH_DISCONNECTED:
    debug.println("ETH Disconnected");
    eth_connected = false;
    break;
  case ARDUINO_EVENT_ETH_STOP:
    debug.println("ETH Stopped");
    eth_connected = false;
    break;
  default:
    break;
  }
}


[kleurbleur]

......

Hero! Wasted 3 hours of my live trying to figure out why a new POE-ISO board with example code did not work.