The Arduino WiFi Shield offers the optimal surface to integrate your Arduino wirelessly into your home network or to make it accessible to the World Wide Web. Thanks to the Micro SD card slot, you have the opportunity to realize a simple rnWeb server with which your periphery can be easily controlled. However, the shield is more than just the wireless alternative of the rnEthernet shield. The board has its own rn32 bit controller, the AVR32UC3. This can be played via the rnMicro USB port with the latest firmware or even with your own stand-alone programs. For your own programs, however, you should have the appropriate C skills. The entire rnFirmware is Arduino typical open source and makes rnDevelopment.rnrnThe WLAN module is the HDG104 from H&D Wireless. This rnist is able to connect to 802.11b/g networks that are encrypted with WEP rnoder WPA2. The data then runs via the AVR32UC3, which takes over rndie background work, and is then passed through the SPI port rnan the Arduino. This means that you only need to easily adjust the programs you have written for the Ethernet module. Specifications: rn Controller: AVR 32UC3 (32-bit) rn - WLAN Module: HDG104 by H&D Wireless rn - Standard: 802.11b/grn - Encryption: WEP and WPA2rn - Logs: TCP and UDPrn - microSD card slot: Jarn cable voltage: micro USB port.