---
title: "Arduino Web remote control Air conditioner with W5100"
url: "https://maker.wiznet.io/wiz_chandana/projects/arduino-web-remote-control-air-conditioner-with-w5100/"
markdown_url: "https://maker.wiznet.io/wiz_chandana/projects/arduino-web-remote-control-air-conditioner-with-w5100/md"
type: "UCC: User Created Content"
author: "APowerUniversal"
author_url: "http://www.superir.net/arduinoethernet.html"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "APowerUniversal"
original_url: "http://www.superir.net/arduinoethernet.html"
published: "2022-11-29"
language: "en"
hardware: ["WIZnet W5100"]
likes: 2
views: 919
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# Arduino Web remote control Air conditioner with W5100

> web remote control for my Air Condition (A/C)

Original author: APowerUniversal (source: http://www.superir.net/arduinoethernet.html)

## Components

- **WIZnet W5100** x 1 ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5100))

## Article

Arduino project to work as a web remote control for Air conditioner (A/C) .

Allows you to control your Arduino and your device (with IR signals) or other devices, lights with a relay from your web browser local or from anywhere in the world.

For example, you can start your home A/C from your office or before returning from a trip to set up the ideal temperature.

Here the author has tried to decode remote control IR signals and create IR library signals. Also used an IR led for transmit signal connected at digital pin and a temperature sensor connected at analog pin.

You can add and humidity sensor,PIR sensors,Laser sensors,Light sensors (LDR)...Another way is a universal remote control connected with arduino from digital output via transistor as switch with on/off button or other buttons.Also you can add MOSFETs and relays for other devices without IR signals for example electric infrared heating panels.

Connect your arduino board , ethernet card W5100+SD card with your modem-router.You must make an account DynDns first if you do not have static ip (you can work and local for example http://192.168.2.15 ) and set up your modem router with dyndns,ip,port.

Download the sketch and load to sd card with html file inside sketch.The user interface is a simple html page inside SD card for show a virtual remote control for A/C.

![](https://maker.wiznet.io/upload/ckeditor5/740234604%5F1669758564%2Ejpg)

You can send the author suggestions and ideas for improvement of the website graphics (virtual remote control image) and extension of the code for controlling other devices.He has created a library with IR code for A/C Toyotomi.You could find it from download page.

[Embedded media](https://www.youtube.com/embed/olONXqrKcL0)

[Embedded media](https://www.youtube.com/embed/Q2rD8NJFNqM)

---

Source: https://maker.wiznet.io/wiz_chandana/projects/arduino-web-remote-control-air-conditioner-with-w5100/