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Arduino Ethernet Shield
sku: DEV-09026
Description: The Arduino Ethernet Shield allows an Arduino board to connect to the internet. It is based on the Wiznet W5100 ethernet chip providing a network (IP) stack capable of both TCP and UDP. The Arduino Ethernet Shield supports up to four simultaneous socket connections. Use the Ethernet library to write sketches which connect to the internet using the shield.The ethernet shield connects to an Arduino board using long wire-wrap headers which extend through the shield. This keeps the pin layout intact and allows another shield to be stacked on top.
Arduino uses digital pins 10, 11, 12, and 13 (SPI) to communicate with the W5100 on the ethernet shield. While using the Ethernet Shield, these pins cannot be used for general i/o.
The shield provides a standard RJ45 ethernet jack.
The reset button on the shield resets both the W5100 and the Arduino board.
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"The SD card slot on the shield is not supported by the Arduino software."
There's no point in including an SD slot, if the hardware won't recognize it in the first place.
B) Like the person above you actually wrote: There are several libraries not in the official distro but very easily added in that support it just fine.
Which leads me to add: I too would love to see that connector populated and would find it useful. I'm going to move on to buy the shield from somewhere that did. (Sadly lazy I know)
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1238295170/0
The SPI pins are not the same. I'm waiting to hear back from the guys on the Arduino forum to see if it's possible to make it work by moving the pins around since the SPI pins on the mega are not located under this shield once it is installed. It might yet be possible to make it work but as of right now, it seems that this shield is NOT compatible with the Arduino Mega.
by setting pins 10-13 to input they go into z-state which is effectively the same as cutting of the pins.
I would like to be able to stack some of the other shields more than one deep.