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From Beagleboard talk:BeagleBone Black FAQ
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15:57, 15 January 2014 Jkridner (talk | contribs)

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(Reply to misinformation regarding built-in serial connection)
20:28, 1 January 2014 Kostmo (talk | contribs)

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20:26, 1 January 2014 Kostmo (talk | contribs)

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According to this faq on and the faq entry on this page, one must purchase a dedicated 3.3V serial adapter for serial communication with the BeagleBone Black. However, I was able to connect using the provided USB cable and a virtual com port. On Linux, the command I used was:

   sudo screen /dev/ttyACM0 115200
20:26, 1 January 2014

Interesting point. That happens to be a "virtual" serial port and not a physical UART.

15:57, 15 January 2014