= W5100-SPI board = This is a very small SPI connected Ethernet TCP/IP module using the [http://www.wiznet.co.kr WIZnet] W5100 chip. W5100 is a hardwired TCP/IP processor. [[Image(W5100-SPI:W5100-arduino.JPG, 500px)]] It required a small fix to make the board work. The bug was about the center tap of transformer. This module works with Arduino. It is compatible with the [http://arduino.cc/en/Reference/Ethernet Arduino Ethernet library] in the Arduino 0012 distribution. [[Image(W5100-SPI:W5100-built.JPG, 500px)]] I have started this project before this summer. I have ordered manufacture of PCB on September, and I received it on October. I spent 3 hours to solder. I regret that I choose 1005 (metric) SMD LCR devices. The main chip is 0.4mm pitch 80 pins LQFP. [[Image(wiki:W5100-SPI:W5100-board.JPG, 500px)]] [[Image(W5100-SPI:W5100-SPI.brd.png, 500px)]] I am now working on a [wiki:AVR-W5100 single board W5100 with AVR board]. ''(2008/10/17 - sgk)''