The current version is 1.7 available from https://github.com/sirleech/Webduino. Future development is hosted on GitHub with this site being a historical archive of the system at version 1.4.1.

This is an Arduino-based Web Server library, originally developed for a class at NYC Resistor. It's called Webduino, and it's an extensible web server library for the Arduino using the Wiznet-based Ethernet shields. It's released under the MIT license allowing all sorts of reuse. I've also put my not-quite-complete presentation up for viewing at http://j.mp/WebduinoPresentation .

I've got a few examples up right now -- the Buzz example interfaces with Zach's Danger Shield allowing you to remotely start and stop the speaker. We had a room full of students pinging my Arduino board on Saturday, buzzing me while I was lecturing. It was fun. The big Demo example shows how to setup an HTML form running on the device where you can read and write pins.

I hope to add a few more examples in the next few weeks, including a web-enabled fridge sign using a serial LCD and how to serve things other than just HTML text from the device. I also need to work on more documentation and finishing up my slides.

Installation Notes

With Arduino 0016 or earlier, put the WebServer.h file in the hardware/libraries/webduino subdirectory of the arduino tree.

With Arduino 0017 or later, add the Webduino folder to the "libraries" folder of your sketchbook directory. See http://arduino.cc/blog/?p=313 for more details on the new setup.

You can put the examples in your own sketchbook directory, or in hardware/libraries/webduino/examples, as you prefer.

If you get an error message when building the examples similar to "WebServer.h not found", it's a problem with where you put the Webduino folder. The server won't work if the header is directly in the libraries folder.

Supplemental Libraries

http://arduiniana.org/libraries/streaming/ - Streaming library to make it easy to do complex output on a class derived from Print. A simpler form of this is included in the Web_Demo sketch as the operator << template.

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1233499187 - Ethernet 2 library, a rewritten library for talking to the Ethernet shield that works a little better and takes less program space.

http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1238640832 - replacement for the Client.cpp file in the Arduino 15 Hardware/Library/Ethernet folder. This is also used with Ethernet2. You want to use this because it makes your server connections more reliable. I hope this becomes an official part of the Arduino 16 tools.

Presentation

Wedbuino Presentation on Google Docs.

Support Thread on Arduino.cc

"Introducing the Webduino web server library" discussion thread on the arduino.cc message board

Compatible Ethernet Shields

These have all been tested with the library successfully:

• Arduino Ethernet Shield, both original and updated microSD version
• adafruit Ethernet Shield w/ Wiznet 811MJ module
• NKC Electronics Ethernet Shield DIY Kit
• Freetronics Ethernet Shield

These shields are not compatible with the library at this time

• adafruit Ethernet Shield w/ XPort or XPort+ module; these talk to the XPort module over serial; to handle incoming connections, you would need to both configure the XPort module to listen to your server port and modify the processConnections code to look for a "carrier" on the serial line.
• Ethernet Adapter for MCU Projects from Seeed Studio; this shield uses the ENC28J60 chip which requires implementing your own TCP/IP stack in software