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Ethernet library

With the Arduino Ethernet Shield, this library allows an Arduino board to connect to the internet. It can serve as either a server accepting incoming connections or a client making outgoing ones. The library supports up to four concurrent connection (incoming or outgoing or a combination).

Ethernet class

The Ethernet class initializes the ethernet library and network settings.

• begin()

Server class

The Server class creates servers which can send data to and receive data from connected clients (programs running on other computers or devices).

• Server()
• begin()
• available()
• write()
• print()
• println()

Client class

The client class creates clients that can connect to servers and send and receive data.

• Client()
• connected()
• connect()
• write()
• print()
• println()
• available()
• read()
• flush()
• stop()

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The text of the Arduino reference is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.