---
title: "Custom device using W5500"
url: "https://maker.wiznet.io/jaden/projects/custom-device-using-w5500/"
markdown_url: "https://maker.wiznet.io/jaden/projects/custom-device-using-w5500/md"
type: "UCC: User Created Content"
author: "부영"
author_url: "https://cafe.naver.com/carroty/386267?art=ZXh0ZXJuYWwtc2VydmljZS1uYXZlci1zZWFyY2gtY2FmZS1wcg.eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJjYWZlVHlwZSI6IkNBRkVfVVJMIiwiY2FmZVVybCI6ImNhcnJvdHkiLCJhcnRpY2xlSWQiOjM4NjI2NywiaXNzdWVkQXQiOjE2OTY0OTMzNzI1ODd9.VlxpA9otV3C0JDVr17YfVU1chVZyUIRTkJjz04JVy_0"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "부영"
original_url: "https://cafe.naver.com/carroty/386267?art=ZXh0ZXJuYWwtc2VydmljZS1uYXZlci1zZWFyY2gtY2FmZS1wcg.eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJjYWZlVHlwZSI6IkNBRkVfVVJMIiwiY2FmZVVybCI6ImNhcnJvdHkiLCJhcnRpY2xlSWQiOjM4NjI2NywiaXNzdWVkQXQiOjE2OTY0OTMzNzI1ODd9.VlxpA9otV3C0JDVr17YfVU1chVZyUIRTkJjz04JVy_0"
published: "2023-10-05"
language: "en"
hardware: ["WIZnet W5500", "MICROCHIP AVR128DA48-I/PT AVR128DA"]
likes: 0
views: 230
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# Custom device using W5500

> Custom device using W5500

Original author: 부영 (source: https://cafe.naver.com/carroty/386267?art=ZXh0ZXJuYWwtc2VydmljZS1uYXZlci1zZWFyY2gtY2FmZS1wcg.eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJjYWZlVHlwZSI6IkNBRkVfVVJMIiwiY2FmZVVybCI6ImNhcnJvdHkiLCJhcnRpY2xlSWQiOjM4NjI2NywiaXNzdWVkQXQiOjE2OTY0OTMzNzI1ODd9.VlxpA9otV3C0JDVr17YfVU1chVZyUIRTkJjz04JVy_0)

## Components

- **WIZnet W5500** x 1 ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5500))
- **MICROCHIP AVR128DA48-I/PT AVR128DA** x 1

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

This project is written by a user nicknamed 'Booyoung' who is active in a developer community in Korea.

He said that he had a board that used W7100A to communicate with TCP/UDP, but there was a setting problem in the field, so he replaced it with W5500 and developed it this time.

![](https://maker.wiznet.io/upload/ckeditor5/694017626%5F1696526750%2Epng)

The yellow part is the main MCU, AVR128DA, and the red part is our W5500.

![](https://maker.wiznet.io/upload/ckeditor5/694017626%5F1696526804%2Epng)

It has modified the FW so that it can be configured in the field to match the network environment used.

![](https://maker.wiznet.io/upload/ckeditor5/694017626%5F1696526893%2Epng)

The author checked the TCP communication by himself and also conducted an aging test.

In the text, he also mentioned that he was able to save about 1/5 of the chip cost by changing from W7100A -> W5500.

---

본 프로젝트는 국내의 한 개발자 커뮤니티에서 활동중인 '부영' 이라는 닉네임의 유저가 작성한 내용입니다.

W7100A를 사용하여 TCP/UDP 통신을 하는 보드가 있었는데 현장에서의 세팅 문제가 있어서 이번 기회에 W5500으로 교체하여 개발했다고 합니다.

![](https://maker.wiznet.io/upload/ckeditor5/694017626%5F1696526750%2Epng)

노란색 부분이 Main MCU인 AVR128DA 이고 빨간색 부분이 자사 W5500 입니다.

![](https://maker.wiznet.io/upload/ckeditor5/694017626%5F1696526804%2Epng)

사용되는 네트워크 환경에 맞게 현장에서 바로 세팅 가능하도록 FW를 수정하였다고 합니다.

![](https://maker.wiznet.io/upload/ckeditor5/694017626%5F1696526893%2Epng)

저자는 TCP 통신이 잘 되는지 직접 확인하였고 에이징 Test도 진행하였습니다.

본문에서 W7100A -> W5500 으로 변경하니 Chip 단가도 1/5 정도 절약할 수 있었다고 언급하기도 하였습니다.

---

Source: https://maker.wiznet.io/jaden/projects/custom-device-using-w5500/