PicDude wrote:
>> CAN is differential, and you get the lowest
>> protocol levels implemented in hardware right in the microcontroller.
>
> But differential means I would need 2 wires for each direction, or 6
> wires total including power and ground, right?

No.  CAN is a single signal bus.  That signal is implemented as a
differential pair, so it requires two wires.  With ground, that's a minimum
of 3 wires.  If you want to bus around power too, then you need 4 wires.


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