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I am trying to communicate to a RevEd (PicAxe) OLED board:
http://www.picaxe.com/Hardware/Add-on-Modules/Budget-Serial-OLED-Module/

Which appears to idle high, much like RS-232.

1. Are the Serial protocols that Arduino uses spelled out anywhere?
2. Is there a way to set these kinds of "modes" in SoftSerial, or any other library?

(PS: I know I can re-write the firmware in the OLED, which may be my next option.)
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1. Are the Serial protocols that Arduino uses spelled out anywhere?

The datasheet of the ATmega328 is quite informative in these questions.

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2. Is there a way to set these kinds of "modes" in SoftSerial, or any other library?

The SoftwareSerial object has the ability to invert the signal.
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Thanks!
The extra SoftwareSerial parameter should be added to the docs on this site.

can you point me to that manual? My Google-foo wasn't sufficient to find it, I could only find the details listed on the hardware page.
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can you point me to that manual?

www.atmel.com/Images/doc8161.pdf
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Thanks, I did not catch that it is was the processor data sheet and not the board.
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