Although it's enjoyable to make fun projects with an Arduino, there are also serious applications that can help with daily activities. One example of this is the weather-prediction LED by Mike's Lab. They use an Ethernet-enabled Arduino board to interrogate web-based weather information websites, and then display different colours or effects using an RGB LED. If you're not interested in weather, this could be a good framework for other Internet-based information retrieval and display system. View the following video for a complete explanation:
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If you're looking for an Ethernet-enabled Arduino-compatible board, consider one of Ethernet-enabled boards, such as the Freetronics EtherTen - the Arduino Uno-compatible with onboard Ethernet, microSD socket and optional PoE:
... or for more program space, I/O ports consider the Freetronics EtherMega - the Arduino Mega2560-compatible with onboard Ethernet, microSD socket and optional PoE:
