I have a scenario where I have an OBD-II interface transmitting data via CAN across six wires to a display. I will have power on either side of the wires, but I cannot assume that the wires will have LOS (cable will be tucked away, so IR isn't an option). I would essentially like to cut the wires, and transmit the data wirelessly between the two ends.

I have done a little reasearch and found these encoders/decoders.

These encoders/decoders will not transmit data. Apparently they just litterally encode/decode wired signals. But as little knowledge as I have on this topic, I'm not sure if they will accomplish what I'm after.

  • 4
    \$\begingroup\$ What's the justification of going wireless? There doesn't appear to be any? \$\endgroup\$ – Andy aka Jul 17 '14 at 20:51
  • \$\begingroup\$ Mostly aesthetic reasons, not needing to run wires all over the car, etc.. Also, it is potentially useful to use this display/tool while under the hood of a car. You would either need two (vendor specific) connection wires, or one wire that wasn't tucked into the dashboard/hidden. \$\endgroup\$ – Ryan Jul 17 '14 at 20:53
  • \$\begingroup\$ The items you have linked are actually encoders/decoders - they still need wires to communicate serially with each other - they are not wireless. \$\endgroup\$ – Andy aka Jul 17 '14 at 20:54
  • \$\begingroup\$ Why don't you google wireless can transceivers? \$\endgroup\$ – Andy aka Jul 17 '14 at 20:58
  • \$\begingroup\$ I did google, just not correctly apparently. I found some things that may work, but I don't know enough about CAN signals. Would something like this do the trick: sparkfun.com/products/12031 \$\endgroup\$ – Ryan Jul 17 '14 at 21:08

There are lots of ODBII connectors on eBay from China that have bluetooth built in to them. I'd use one of those.


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