The Arduino WiFi Shield is the adapter plate for the WIZnet WIZ610wi WiFi module. This shield provides 802.11b/g connectivity, and is compatible with Duemilanove, Mega, and Uno platforms. This Shield can easily connect to the internet utilizing the widely used communications framework as WiFi.
The WIZ610wi WiFi module has a hardware TCP/IP stack, which makes it one of the most stable stacks in the market, without having to spend resources of the processor or microcontroller in communication tasks.
The Arduino WiFi Shield comes with a complete library of functions for data transmitting and WiFi configuration module developed by MCI.