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Teaching an Embedded Web Server Class

BTW, if you're up here in New York and want to learn about making embedded devices that act like web servers, I'm teaching a two hour class on the subject on March 28th at NYC Resistor. After the class, I'll be putting my materials online, but I'm still working on everything right now.

You can get details on the class at http://www.eventbrite.com/event/302042417.

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I went to a session on hacking microcontrollers, and another on XBee wireless today at E-Tech. It has me itching to build cool gadgets.

What sort of stuff are you Making? :-)

The class is about making nano-web servers that you can use to read sensors or control outputs. I've been working on the code for that off-and-on for a couple of weeks. I've also got some ideas for code patches for the Arduino support library, and I'd like to make a RGB LED shield for the Arduinos where three TI TLC9540 chips are used to drive a 4x4 matrix. I've also got the idea of using the RGB LEDs along with a video input circuit to make a homemade backlight that matches the wall color with the dominant color on a TV screen.

I wish I was in New York, because it's a really interesting topic for me. Arduinos are the coolest freaking invention.

Yeah, having hands on classes and people to bounce ideas off is really great. However, I know there's some interest in Austin. There seemed to be some effort to setup an Austin hackerspace (http://austinhackerspace.org/), and the Austin Robot Group (http://wiki.therobotgroup.org/wiki/Main_Page) has probably done some things with them.

Wish I was close enough to take the class. I'm curious to see the materials when you post them online.

I'm starting to visualize a wifi, web-based drip irrigation controller. But the rest of the veggie beds need to go in first...

hand on lab

Do you plan to post hand on code on this shield? thank you

Yes, the whole project has a website at http://webduino.googlecode.com. I've already updated it to version 1.1 and several people have used it for projects.

does it work without ethernet shield?

Does webduino works with WIZ811MJ along on the PCB without the Ethernet Shield? Or, does it work with adafruit eithernet shield? Try to save a few bucks... Thank you.

Re: does it work without ethernet shield?

You can use the ladyada shield with the Wiznet module; in that configuration, it's electrically the same as the Arduino Ethernet shield. However, using the module does increase the vertical height of the board, which means you can't stack another shield on top.

NKCElectronics has a cheaper compatible shield kit for $30 -- check out http://www.nkcelectronics.com/nkc-ethernet-shield-for-arduino-mega--duemilanove--diecimila-diy-kit.html . It's $32, but you do have to solder it up yourself.

Re: does it work without ethernet shield?

I'm not sure how you'd interface to the WIZ811MJ without a shield of some sort. If you built your own Arduino-compatible board, you could include the Ethernet shield directly on it, and as long as it was the same signals as the official shield, it should work.

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