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I have GSM modem that has MAX232 interface for RX/TX/GND on three pins. Is it possible to interface Arduino in some way?

Tnx for help.

asked Mar 18, 2015 at 11:50

1 Answer 1

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Yes, with another MAX232, or bypass the MAX232 somehow.

answered Mar 18, 2015 at 11:58
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    Tnx, should lines be exchanged on another max232? rx,tx->tx,rx Commented Mar 18, 2015 at 12:00
  • Of course. Otherwise you'll be transmitting to a transmit pin, not a receive pin. Commented Mar 18, 2015 at 12:07
  • Thank you for confirmation, something else doesn't work :) Commented Mar 18, 2015 at 12:08

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