If you have an Arduino and an Ethernet shield, you can utilize Arduino as a web server.
You can receive data from a sensor using the web to control the sensor.
However, there is one thing you should keep in mind.
In the case of using a local IP, you cannot access the Internet. If you want to access the Internet, you should use a public IP address.
You can utilize this in a variety of fields below.
2. Examples on wiznetmuseum.com
2.1 Make a Web Server with Ethernet Shield Arduino+
In this case, a private IP is used to develop a web server so it could communicate locally. It can also just receive data.
Tags: arduino, Ethernet, shield, web, server,
2.2 Arduino Web Server LED Control
In this example, it can control a LED on/off.
Tags: arduino, Ethernet, shield, web, server, controlLED
WIZnet Museum: http://wiznetmuseum.com/portfolio-items/arduino-web-server-led-control/
2.3 Garage-Door Web Server
In this case, it is an upgraded version based on the examples above.
Essentially, the web server detects when the door is opening/closing.
If you have an idea, you can apply the web server like this.
Tags: arduino, Ethernet, shield, web, server, doorDetector
WIZnet Museum: http://wiznetmuseum.com/portfolio-items/garage-door-web-server/
2.4 Arduino Web Server Data Logger
Last example I’ll cover is a data logger. You can use the web server to log data.
This project needs a SD card to store sensor data, which can be viewed on a web page.
Tags: arduino, Ethernet, shield, web, server, data logger
WIZnet Museum: http://wiznetmuseum.com/portfolio-items/arduino-web-server-data-logger/
Curator: Tom from WIZnet