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Author Topic: Any way to add ethernet to Arduino cheaper than shield?  (Read 2730 times)
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I've found tutorials to build my own Arduino on perfboard for ~$5, is there a way to do the same with the ethernet shield? Anybody have any instructions on how to build an ethernet shield type thing on perfboard?

I would like to have it compatible with the Arduino Ethernet Library if possible too. Thanks!
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You might want to investigate the W5100 chip that is used on the ethernet shield. It's a surface mount chip only, so sticking it on perfboard will be a challenge.

Sparkfun sells them, for about $6, but there is a lot of stuff that needs to go with it. They also have this: http://www.sparkfun.com/products/9473
Full schematics available free of charge...
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I've found tutorials to build my own Arduino on perfboard for ~$5, is there a way to do the same with the ethernet shield? Anybody have any instructions on how to build an ethernet shield type thing on perfboard?

I would like to have it compatible with the Arduino Ethernet Library if possible too. Thanks!

You can use other Ethernet controller than Wiznet W5100 (for example, Microchip ENC28J60).
I'm writing a library for Arduino to this cheaper controller, you can see more information at: http://arduino.cc/forum/index.php/topic,56057.html
Please navigate through the pages of this topic and you'll see a list of photos of different modules and companies that sells these modules.
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Curso de Arduino (Arduino Course, in Brazil) - http://www.CursoDeArduino.com.br/

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You might want to investigate the W5100 chip that is used on the ethernet shield. It's a surface mount chip only, so sticking it on perfboard will be a challenge.

Sparkfun sells them, for about $6, but there is a lot of stuff that needs to go with it. They also have this: http://www.sparkfun.com/products/9473
Full schematics available free of charge...

That one from sparkfun seems to be perfect. Now I just need to figure out how to prototype it on a breadboard since the soldered headers are double rows and wouldn't work...
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You might want to investigate the W5100 chip that is used on the ethernet shield. It's a surface mount chip only, so sticking it on perfboard will be a challenge.

Sparkfun sells them, for about $6, but there is a lot of stuff that needs to go with it. They also have this: http://www.sparkfun.com/products/9473
Full schematics available free of charge...

I'd say a 8$ shield to connect that break out board to Arduino would be a hit... Anyone think that it would be possible to be below that price?
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There's an extended discussion of the pros and cons of the already mentioned http://www.sparkfun.com/products/9473 at that page.

The biggest "con" seems to be the two double rows of header pins... makes connecting via breadboard at least difficult, and probably impossible.

The price: $25.

A "proper" shield: $46

$21 is $21... but you have to count your time as worth SOMETHING!!!

I like "simple" too... but sometimes "simple" is buying the better board in the first place.

The Ethernet shield Sparkfun is selling... when they can get it in stock... also has a microSD slot, which opens numerous possibilities...

===
See also (not tested by me, but looks fine... $32...

http://www.seeedstudio.com/depot/wiznet-ethernet-shield-w5100-p-518.html

A shield. No memory card slot.

===
Take care when buying Ethernet shields that you have what is required by way of power. If you are not using a "standard" Arduino, you may not have a ready source of 3v3, and some Ethernet shields need it.

===
Take care if buying an old shield that reset issues are not going to annoy you.

===
If the board is not W5100 based, be sure you are prepared to work with a less extensively supported chip.

===
$37, W5100, some kind of memory card slot...

http://www.bizoner.com/arduino-duemilanove-wiznet-w5100-ethernet-shield-p-209.html

===
$45, with POE for Ethernet and attached Arduino... lots of encouraging technical notes..
http://www.freetronics.com/products/ethernet-shield-with-poe

===
$32, with microSD, W5100... looks like it might be a version from the "official" Arduino stable...
http://www.freetronics.com/products/ethernet-shield-with-poe
.. and...
http://www.robotshop.com/ProductInfo.aspx?pc=RB-Ard-11
.. seems to be the same board, $40, more information.
... AND... at...
http://www.aliexpress.com/fm-store/604119/210881751-465060173/Arduino-Ethernet-Shield-Wiznet-W5100.html
... there's a suggestion that this board comes from tinyos electronics, China.
===

So many options! So little time!
« Last Edit: August 25, 2011, 12:19:34 am by tkbyd » Logged

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I have the seeedstudio one, bought it at there anniversary sail, so got it for a very nice price.

Pro's: it has holes with arduino and standard prototype spacing.

Con's: no sd card slot (I'm going to use it with a seeeduino stalker which has a card slot so no problem for me.

side note: earlier version of the official arduino ethernet shield had a none working sd card.

The freetronics one has lot's of improvements, so I had it high on my wish list.

Also the new arduino ethernet might be a alternative (arduino uno + ethernet shield in one):
http://store.arduino.cc/ww/index.php?main_page=product_info&cPath=11_12&products_id=141

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I have the ethernet shield rev5 w/o POE module ,bought it for 29€.

I think its great value , i was running a webserver in about 30 mins.

A basic W5100 module will cost you min 20€ (even ebay china stuff).

The ENC28J60 is a great chip but it does not contain a TCPIP stack like the W5100.
I found coding the w5100 shield is super easy with the arduino library
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I like the enc28j60. There are lots of shields and DIY projects out there. Its cheap and  comes in dip varieties so very easy to breadboard or solder which is a huge plus in my book. smiley
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Buy a combined unit - Nanode http://nanode.eu/
I've just built on, its a Arduino + Ethernet shield all in one.
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+1 for the Nanode, it's a nice little device.

I've also used this Wiznet board from Saelig: http://www.saelig.com/product/BRD001.htm.   Unlike the other Wiznet boards, this one doesn't have the odd dual-row headers on the bottom of the board; the only tricky bit is the .2 top-mounted header, but cables are easy enough to source for that.

Saelig carries A LOT of Wiznet products, and they are US based so shipping is much faster than seeed, itead, etc.  Select 'Wiznet' from the 'Shop by Supplier' box on the left side of the page.

BTW, they are also a supplier for the nifty 4D Systems OLED displays.  These are very, very nice and easy to integrate with.
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