---
title: "W5500 EtherCAT master shield board for Raspberry pi"
url: "https://maker.wiznet.io/WIZnet/resellers/w5500-ethercat-master-shield-board-for-raspberry-pi/"
markdown_url: "https://maker.wiznet.io/WIZnet/resellers/w5500-ethercat-master-shield-board-for-raspberry-pi/md"
type: "VAR: Value-Added Reseller Products"
author: "Ho Tam"
author_url: "http://www.simplerobot.net/2018/11/picat-schematics-and-sample-boards-for.html"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "Ho Tam"
original_url: "http://www.simplerobot.net/2018/11/picat-schematics-and-sample-boards-for.html"
published: "2023-04-17"
language: "en"
hardware: ["WIZnet W5500"]
likes: 0
views: 153
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# W5500 EtherCAT master shield board for Raspberry pi

> Realtime EtherCAT shield board (PiCAT)

Original author: Ho Tam (source: http://www.simplerobot.net/2018/11/picat-schematics-and-sample-boards-for.html)

## Components

- **WIZnet W5500** x 1 ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5500))

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/))

## Article

**INTRODUCTION**

We need to use external Ethernet chip (W5500) to archive hard-reatime EtherCAT Master on RPI. This post describes how to use available W5500 module and Raspberry pi to make your own EtherCAT master controller which we call PiCAT.

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Source: https://maker.wiznet.io/WIZnet/resellers/w5500-ethercat-master-shield-board-for-raspberry-pi/