Two arduino Atmega communicating true ENC28J60 ethernet shield help wanted

Projects Networking, Protocols, and Devices
1

Hi all you brilliant people.

Ethernet is a' know almost nothing for me, and been searching for answers for some while now. so far no real luck.
I'm building my own underwater ROV so far rated for about 400 meters. i could use RS485 for communication but then my free gift cable would be of no use. so my only hope is to make 2 arduino's speak forth and back true Ethernet over power-line. witch seems like a good idea.
my problem is i have a hard time to find useful info about getting 2 arduino's speak together via Ethernet.
i have 15 different values i need to get from the control unit down to the ROV, and 8 different values back to the surface.
every 30 millis or so(just a guess) might be 50 or 70.
so far i get the hello world and other small examples such as web server and web switch all the way true the entire cable using 240 volt and Ethernet over power-line adapters, I'm also almost finished rebuilding both Ethernet over power-line adapters to run on 24 volts as well, just for the safety measures. So so far so good.
Anyone with any skills to get 2 arduino's exchange different values true the ENC28J60 Ethernet shield ?
Any reply would be highly appreciated.

Best regards to all of you and hope for some answers.

2

Hi Nesredna,

I am planing to embark on a very similar adventure. ROV, 500 feet two thread wire, ethernet over power line... I have two arduinos joined through two ENC28J60 and I have no idea how to get them to talk. I looked everywhere and can't find any info.

How is your project going along?

Thanks!

  • Blaise
3

Jeeezz been a while since I've been one this forum. Sorry for a late reply. Somehow I kinda put all my projects on hold.
I finnally settled on rs485 as standard an using easytransfer libary as my best companion. In half dublex 225000 baud using 4 wires 1 common ground 1 tx 1 rx and the 4 as video feed from rov. Works really fine with more than 700 meters of 4 wire double twisted pair cable. Finnally im on the rigth track
All variabels are declared and send down and up in less than 40 milliseconds in turn making the latancy of the rov minimal.