Buy the ET-WEB51 TCP/IP Ethernet Web Control Board online for just USD $89.00.

As a value-added bonus get the matching Keil C51/ 8051 port of the uIP v0.9 TCP/IP stack for FREE!.

The ET-WEB51 TCP/IP Ethernet Web Control Board comes preloaded with TCP/IP software that allows you to control outputs, sense inputs and write text to an LCD. All this across the Internet via a standard browser. As a value-added bonus a matching port of the world's premier embedded TCP/IP CGI webserver software is included at no additional cost. Written in well documented C code, uIP v0.9 will allow you to write your own dynamic embedded webpages, as well as to experiment with other protocols such as FTP, SMTP, TELNET, Webclient, etc. This is a super value package for those wishing to program their own applications with the TCP/IP protocol suite.

ET have produced a remarkable board in the WEB51. It is based on the popular Atmel AT89C51RD2 microcontroller, and features the RealTek RTL8019AS full-duplex ethernet controller chip. You get a huge 64K In-System-Programmable FLASH memory for code and web content, backed up by up to a further 4 optional, I2C addressable EEPROM memory chips. There is space onboard for a battery backed DS1307 real time clock chip, as well as options to expand the standard RS232 communication channel for RS485/RS422 communication.