---
title: "Network Remote Control Smart Home Ethernet IP Normally Open Contact 2 Channel Relay Board"
url: "https://maker.wiznet.io/eric_g/resellers/network-remote-control-smart-home-ethernet-ip-normally-open-contact-2-channel-relay-board/"
markdown_url: "https://maker.wiznet.io/eric_g/resellers/network-remote-control-smart-home-ethernet-ip-normally-open-contact-2-channel-relay-board/md"
type: "VAR: Value-Added Reseller Products"
author: "yuznes"
author_url: "https://korean.alibaba.com/product-detail/network-remote-control-smart-home-Ethernet-60673757453.html"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "yuznes"
original_url: "https://korean.alibaba.com/product-detail/network-remote-control-smart-home-Ethernet-60673757453.html"
license: "GNU General Public License, version 3 or later (GPL3+)"
published: "2022-12-02"
language: "en"
tags: ["W5500"]
hardware: ["WIZnet W5500"]
likes: 3
views: 657
comments: 1
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# Network Remote Control Smart Home Ethernet IP Normally Open Contact 2 Channel Relay Board

> Two-way 10A relay controller, normally open and normally closed output, can be used for smart home control

Original author: yuznes (source: https://korean.alibaba.com/product-detail/network-remote-control-smart-home-Ethernet-60673757453.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

![](https://maker.wiznet.io/upload/ckeditor5/94080735%5F1670002813%2Epng)

**Product features**
1, support work TCP server, TCP client, UDP mode.
2, work in TCP server mode, support 4 client connections.
3, support MODBUS TCP protocol, support kingview.
4, support online update program, very convenient custom procedure.
5, The name of the device can be customized, and supports Chinese custom when the device does not need to record the cumbersome IP number.
6, you can customize the reliability of the beating packet time, broken network recovery.
7, using high-performance Cortex-M3 kernel 32-bit microcontroller (STM32F103C8), instead of the market 8-bit MCU, the network chip adopts the hardware protocol W5500 instead of ENC28J60.

**Very simple control instructions**

send on1 to open the first relay, same as the second control method to close the first relay. send read1 read first relay state like return on1 first road relay, first relay release return off1. Delay control such as send on1:02 said relay 2 seconds after release,: 12 said relay send 12 seconds after release, the most delay is 99 seconds.

**TCP MODBUS**
01, 1 operation code
This code is read relay status, relay address: first 0010, road 0011, second.
02, 5 operation code
This code is to control a single relay, relay address: first 0010, road 0011, second.
3, 0F operation code
This code is to control two relays, relay address: first 0010, road 0011, second.

**Product Use**
It can be used for access control, computer control, and remote control. Can control the network, and mobile phone remote control.

---

Source: https://maker.wiznet.io/eric_g/resellers/network-remote-control-smart-home-ethernet-ip-normally-open-contact-2-channel-relay-board/