---
title: "w5500lwip2"
url: "https://maker.wiznet.io/Benjamin/projects/w5500lwip2/"
markdown_url: "https://maker.wiznet.io/Benjamin/projects/w5500lwip2/md"
type: "UCC: User Created Content"
author: "rjjrbatarao"
author_url: "https://github.com/rjjrbatarao/w5500lwip2"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "rjjrbatarao"
original_url: "https://github.com/rjjrbatarao/w5500lwip2"
published: "2024-07-08"
language: "en"
hardware: ["Espressif ESP8266 ESP-01", "WIZnet W5500"]
likes: 0
views: 1535
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# w5500lwip2

> w5500lwip Compatible with Ethernet Wiznet 5500 ESP32 and ESP8266 Static or DHCP Modes available. It is a very raw script but it works, also the dns server.

Original author: rjjrbatarao (source: https://github.com/rjjrbatarao/w5500lwip2)

## Components

- **Espressif ESP8266 ESP-01** x 1 ([docs](https://www.farnell.com/datasheets/2661567.pdf))
- **WIZnet W5500** x 1 ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5500))
- Software: **WIZnet RP2040-HAT-LWIP-C** ([docs](https://github.com/Wiznet/RP2040-HAT-LWIP-C))

WIZnet parts: W5500 ([Datasheet](https://docs.wiznet.io/Product/Chip/Ethernet/W5500/datasheet?utm_source=maker&utm_medium=project&utm_campaign=w5500), [product hub](https://maker.wiznet.io/products/w5500/))

## Documents and links

- [utility](https://github.com/rjjrbatarao/w5500lwip2/tree/main/utility) (code)

## Article

w5500lwip Compatible with Ethernet Wiznet 5500 ESP32 and ESP8266 Static or DHCP Modes available. It is a very raw script but it works, also the dns server.

What it needs to run:

Setup the wifi module "on" or at least "WiFi.mode(WIFI_OFF)" to bring up the lwip interface and the "WiFiClient"

Arduino's setup() example:

```c
static ip: uint8_t mac_addr[6] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xE }; 
IPAddress ip(192, 168, 1, 50);
 IPAddress subnet(255, 255, 255, 0);
  IPAddress gateway(192, 168, 1, 1); 
  IPAddress dns(192, 168, 1, 1); 
  Ethernet.begin(mac_addr,ip,subnet,gateway, dns);
  
  dhcp ip: Ethernet.begin(mac_addr);
```

to use some client just use: WiFiClient wifiClient; That's it!

!!! Note: the are a lot of work to do eg. handling link states, reconnections, transitions, Eth configuration things and so on... !!!

---

Source: https://maker.wiznet.io/Benjamin/projects/w5500lwip2/