Creating a powered serial bus using Rx and Tx

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hey,
i'm looking serial connection. have design constraint need have 2 way serial communication arduino, needs done on 2 wires. i've been contemplating concept while , still drawing blanks. can explain how concept works or how can build perform function?
thanks,
will

are asking how bet both power , comm on 2 wires?  or comm on 2 wires (without separate ground) otherwise powered device?



Arduino Forum > Using Arduino > Networking, Protocols, and Devices (Moderator: fabioc84) > Creating a powered serial bus using Rx and Tx


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