Ken,
Generaly serial data for 1 way communication requires a data wire and a ground.
2 way communication needs a second data wire. If you are using a serial Backpack on an LCD module then you need a power wire.
Regards
JS
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Wires
Ken,
Generaly serial data for 1 way communication requires a data wire and a ground.
2 way communication needs a second data wire. If you are using a serial Backpack on an LCD module then you need a power wire.
Regards
JS
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