Hi to everyone, I'm trying to write some code to control a gprs module (with arduino pro). During a day I was getting crazy because the gprs module did not reply to AT commands. Today I tried to change the code (just change Serial. to altsoft in the print command, nothing more) to use altsoftseria…

problem with hardware serial, not with altsoftserial

system October 7, 2012, 5:54pm 6

Now, in the arduino pro 328, pin are rx 8 and tx 9.

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