---
title: "220012 TCP/IP Relay Controller"
url: "https://maker.wiznet.io/rena/resellers/220012-tcp-ip-relay-controller/"
markdown_url: "https://maker.wiznet.io/rena/resellers/220012-tcp-ip-relay-controller/md"
type: "VAR: Value-Added Reseller Products"
author: "Kallio Designs"
author_url: "https://www.tindie.com/products/kallio-designs/220012-tcpip-relay-controller/"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "Kallio Designs"
original_url: "https://www.tindie.com/products/kallio-designs/220012-tcpip-relay-controller/"
published: "2022-12-29"
language: "en"
hardware: ["WIZnet W5500"]
likes: 0
views: 502
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# 220012 TCP/IP Relay Controller

> Control relays and external relay boards via wired ethernet / LAN connection. 3 Digital inputs, 2 internal relays, expandable to 130 relays.

Original author: Kallio Designs (source: https://www.tindie.com/products/kallio-designs/220012-tcpip-relay-controller/)

## 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

#### **Product summary**

A device that allows reading 3 digital inputs and controlling 2 relays through TCP/IP communication. Extendable with 8 relay modules.

#### **Features**

- TCP/IP control

- 2 dry-contact relays

- 3 Digital inputs

- Expandable to 130 relays

- 17-30 VDC operation

- TCP/IP to I2C bridge

**Original Link: **[**https://www.tindie.com/products/kallio-designs/220012-tcpip-relay-controller**](https://www.tindie.com/products/kallio-designs/220012-tcpip-relay-controller)

---

Source: https://maker.wiznet.io/rena/resellers/220012-tcp-ip-relay-controller/