ESP32 WROOM + ENC28J60

[Kishiro80]

I tried Using ENC28J60 with this library. I Initialized ENC and able to use it using EthernetENC - EthernetClient client;.

but when I tried to use this async request, it got some weird error,

Stack Error

Can anyone guide me on how to use ESP32 with this ethernet shield? I will attach my code and stack error here. This is my first time starting discussion, please be kind~.

... can someone tell me how to quote code??

Code:

#include <EthernetENC.h>
#include <SPI.h>
#include <AsyncHTTPRequest_Generic.h>
#include <Ticker.h>
#define ASYNC_HTTP_DEBUG_PORT Serial
#define _ASYNC_HTTP_LOGLEVEL_ 4

#define HTTP_REQUEST_INTERVAL     10


AsyncHTTPRequest request;
EthernetClient client;
Ticker ticker;


byte mac[] = {
  0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED   // here I put the mac of ESP32
};
IPAddress ip(192, 168, 0, 132); // This is the IP address I got in the output of DhcpAddressPrinter code
IPAddress serv(XX, XX, XX, XX); // This is my PC's IPv4 address

void sendRequest(void);

// Repeat forever, millis() resolution

void sendRequest(void)
{
  static bool requestOpenResult;

  if (request.readyState() == readyStateUnsent || request.readyState() == readyStateDone)
  { String link = "http://XX,XX,XX,XX/test/datacollect.php";
    requestOpenResult = request.open("GET", link.c_str());
    Serial.print("requestOpenResult ");
    Serial.println(requestOpenResult);
    if (requestOpenResult)
    {
      request.send();
    }
    else
    {
      Serial.println("Can't send bad request");
    }
  }
  else
  {
    Serial.println("Can't send request");
  }
}


void requestCB(void* optParm, AsyncHTTPRequest* request, int readyState)
{
  (void) optParm;

  if (readyState == readyStateDone)
  {
    Serial.println("\n**************************************");
    Serial.println(request->responseText());
    Serial.println("**************************************");

    request->setDebug(false);
  }
}

void setup() {
  Ethernet.init(33);  // ESP32 with Adafruit Featherwing Ethernet

  Serial.begin(9600);
  Serial.println("Ethernet WebServer Example");

  Ethernet.begin(mac, ip);

  if (Ethernet.hardwareStatus() == EthernetNoHardware) {
    Serial.println("Ethernet shield was not found.  Sorry, can't run without hardware. :(");
    while (true) {
      delay(1); // do nothing, no point running without Ethernet hardware
    }
  }
  if (Ethernet.linkStatus() == LinkOFF) {
    delay(500);
    if (Ethernet.linkStatus() == LinkOFF) {
      Serial.println("Ethernet cable is not connected.");
    }
  }
  
  Serial.print(F("AsyncHTTPRequest @ IP : "));
  Serial.println(Ethernet.localIP());
  Serial.println();

  request.setDebug(true);
  request.onReadyStateChange(requestCB);
  ticker.attach(HTTP_REQUEST_INTERVAL, sendRequest);
}


void loop() {

  if (client.connect(serv, 80)) {
    Serial.println("new client");

    client.print(String("GET http://XX,XX,XX,XX/test/datacollect.php\r\n") +
                 " HTTP/1.1\r\n" +
                 "Host: " + serv + "\r\n" +
                 "Connection: Keep-Alive\r\n\r\n");
    // output the value of each analog input pin
    Serial.println(String("GET http://XX,XX,XX,XX/test/datacollect.php") +
                   " HTTP/1.1\r\n" +
                   "Host: 54.179.26.156\r\n" +
                   "Connection: Keep-Alive\r\n\r\n");
    int maxloops = 0;

    // give the web browser time to receive the data
    while (!client.available() && maxloops < 1000)
    {
      maxloops++;
      delay(1); //delay 1 msec
    }
    if (client.available() > 0)
    {
      //read back one line from the server
      String line = client.readStringUntil('\r');
      Serial.println(line);
    }
    // close the connection:
    client.stop();
    Serial.println("client disconnected");

  }
}

[Kishiro80]

I stopped the backtrace by including this in my code. And the init is placed in setup

`

#include <tcpip_adapter.h>
void setup(){
//initialize Ethernet
tcpip_adapter_init();
} `

but now, after send, it just display cant send...

[khoih-prog]

Sorry, ESP32 + ENC28J60 combination is not supported now. Please have a look at Currently Supported Boards.

It's better to use the supported WT32-ETH01 (ESP32 + LAN8720) for your use-case