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Topic: Ethernet Shield/Ethernet Microcontroller Question (Read 492 times) previous topic - next topic

NickPatey

Jan 08, 2013, 01:21 pm Last Edit: Jan 08, 2013, 02:17 pm by NickPatey Reason: 1
Im new to the arduino and am currently working on a school project, i was wondering what the difference would be between the following two:

-The Arduino Ethernet Microcontroller With PoE (http://tinyurl.com/a67mxoe)
-And the Arduino Uno USB Microcontroller Rev 3 with Arduino Ethernet Shield ( http://tinyurl.com/alhpypg , http://tinyurl.com/bz7tyuj )


I need the arduino to do some polling and send the data out via ethernet, is this possible with the ethernet microcontroller? (Im wondering this because getting the ethernet microcontroller would help save on physical space).



SurferTim

I have not used the Arduino Ethernet. It does not have a usb port built in, so take that into consideration. If you want that function, you will need a usb card.

The advantage of the ethernet shield is the ability to move it from device to device. If you find the Uno does not have the memory or digital pin capability you require, you can purchase a Mega2560 (like I did), and move the shield to it.

Nick_Pyner

#3
Jan 08, 2013, 03:48 pm Last Edit: Jan 08, 2013, 03:55 pm by Nick_Pyner Reason: 1
Either will do. I have a Uno with built-in Ethernet and a mega with separate shield. I believe both can use POE, I have never felt the need to use it with either.

(edit)
I'm amazed at what Tim wrote, and the price. If you want to go that way, I suspect you would be better off with an Etherten like mine.  It has USB, Ethernet and SD card all-in-one and seems competitively priced. I guess an Arduino with no USB has a place in this world, but surely not for a school project.

NickPatey

The Etherten looks pretty ideal for me actually, im just wondering about the coding, does the Etherten use the same code that the Arduinos use? If it doesnt i would stick with the Arduino because of the large library of existing programs and codes available.

So im assuming it can be be programmed through USB to poll data and send this data out via ethernet? I want to be 100% sure before ordering, because im on a limited schedule and want to avoid having to avoid another product if it doesnt meet my needs.

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