---
title: "Situation detection and control device using Ethernet (W5100)"
url: "https://maker.wiznet.io/annjaison/projects/situation-detection-and-control-device-using-ethernet-w5100/"
markdown_url: "https://maker.wiznet.io/annjaison/projects/situation-detection-and-control-device-using-ethernet-w5100/md"
type: "UCC: User Created Content"
author: "annjaison"
author_url: "https://maker.wiznet.io/annjaison/"
original_url: "https://m.blog.naver.com/123gtf/221346902145"
published: "2022-11-29"
language: "en"
likes: 2
views: 682
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# Situation detection and control device using Ethernet (W5100)

> This is a circuit capable of real-time monitoring and related control using the Arduino Ethernet Shield (W5100) to use Ethernet.

Original source: https://m.blog.naver.com/123gtf/221346902145

## Article

This is a circuit capable of real-time monitoring and related control using the Arduino Ethernet Shield (W5100) to use Ethernet.

As a preliminary work to review the possibility of actual implementation, this is a circuit made using Arduino MEGA 2560 as a central processing board.

Starting with a CDS sensor to detect whether or not there is light, two DHT temperature and humidity sensors to measure real-time temperature and humidity in two places, and two 100A Max current sensors to measure high-current AC current are connected by cables to the circuit. . Arduino Mega acquires and calculates the sensor data through the sensors described above, and transmits the data to the online server. At this time, the Arduino Ethernet Shield (W5100) transmits the related protocol to the server.

It is not an Arduino Ethernet monitoring device using a simple Ethernet module (W5100), but a control function is also implemented, so an online UI can be configured to control each relay by "specific time", "temperature", and "user command". It is also designed to be controlled remotely, including

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Source: https://maker.wiznet.io/annjaison/projects/situation-detection-and-control-device-using-ethernet-w5100/