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Old 09-26-2019, 03:24 PM   #21
knc1
Going Viral
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Posts: 17,212
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Join Date: Feb 2012
Location: Central Texas
Device: No K1, PW2, KV, KOA
That is one confusing post.
Which Rx and which Tx are you speaking of in each instance?
(There are two (2) of each.)

You should see the connections as diagrammed:
Code:
Rx  <- Tx
Tx  -> Rx
Gnd <> Gnd
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