You can buy a web platform kit for $35, including worldwide shipping. Have it assembled for $5 more.

The Dangerous Prototypes web platform is a tiny server designed for networked hacks where a full PC is inconvenient. There’s lots of interesting projects that bridge the internet to microcontrollers, but most of them have a PC in the middle to handle network stuff. This business card-sized internet appliance can connect to web services, control physical objects from a browser interface, or email sensor status reports; no PC intermediary required!

Introduction

Firmware

Links

Reference

See the example HardwareProfile.h file for a complete list of peripheral connections

I/O header

I/O PIC pin PORT# RP# output max input
1 35 A9 3.3v 5.5v
2 36 C3 19 3.3v 5.5v
3 37 C4 20 3.3v 5.5v
4 38 C5 21 3.3v 5.5v
5 42 B6 6 3.3v 5.5v
6 41 B5 5 3.3v 5.5v
7 44 B8 8 3.3v 5.5v
8 43 B7 7 3.3v 5.5v
9 GND
10 3v3

LEDs

LED PIC pin PORT#
LD1 32 A8
LD2 35 A9
SD 12 A10

License

The web platform is a development board and we believe that you should be able to use it (or parts of it) however you want. We release our parts of the PCB and schematic into the public domain (or creative commons 0, your choice), but the FTDI chip and USB jack are from a CC-BY-SA part library from SparkFun (that was formerly CC-BY-SA-NC). We haven’t had a chance to update the boards to remove those parts, if you take them out you can have our work under CC-0.