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Old 09-20-2012, 10:10 PM   #23
knc1
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Posts: 10,676
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Join Date: Feb 2012
Location: Central Texas
Device: Nothing KV or newer, not interested.
From that picture -
Pin 4 is ground,
Pin 1 is the (unused) power connection -

Now just sort out Pin 2 and Pin 3
One is TX, other is RX
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