Thread: PW3 Extending serial port cables outside Kindle without cutting any holes, possible?
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Old 02-14-2020, 02:07 PM   #3
Quoth
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Use the wires out of a Cat5 patch cord, USB cable or old earphone cable.

You can get simple TTL serial BT modules. I saw a photo of one inside a DXG. Or use a "stereo" 2.5mm jack socket.
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