ESP32 and two W5500

proasnet · September 11, 2024, 9:47am

Dear all,
I am trying to find a solution on the Internet to connect two W5500 Ethernet shields to ESP32 (or Arduino Mega).
The reason is that I have a device with a Siemens S7-1200 PLC and HMI, which forms one private network in the machine, and I need to create a program for a gateway between this private network and reading data from the PLC, and a public one, where the MQTT service and the web interface will be .
Does any ethernet library for ESP32 allow this?
Thank you

Juraj · September 11, 2024, 11:34am

github.com

Networking-for-Arduino/EthernetESP32/blob/master/examples/TwoEthernets/TwoEthernets.ino

/**
 * Example for two Ethernet instances
 */

#include <EthernetESP32.h>
#include <MacAddress.h>

W5500Driver driver;
W5500Driver driver1(16);

EthernetClass Ethernet1;

void setup() {

  Serial.begin(115200);
  while (!Serial);

  Ethernet.init(driver);
  Ethernet1.init(driver1);

This file has been truncated. show original

proasnet · September 17, 2024, 5:58am

Thanks for the library tip. I will try it as soon as possible.

system · March 16, 2025, 5:59am

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ESP32 and two W5500

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