Serial comms jack wiring
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Serial comms jack wiring
Above instructions show both 2.5mm stereo jack tip/ring/base as DB9 2/3/5, or DB9 3/2/5. Only one is correct, which is it?
http://www.useasydocs.com/details/wire.htm
Wiring instructions for micro merely state 'prewired to jack'. Doesn't state which is where.