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Title: MOD-RS485-ISO or MOD-RS485 logic levels
Post by: dxmann on May 31, 2013, 01:33:53 PM

Hello!
I would ask which are the voltage levels of the RS232 port: i nee to connect its pin to 3.3v digital ports.
Thank you! :)
here are the modules:
https://www.olimex.com/Products/Modules/Interface/MOD-RS485-ISO/
https://www.olimex.com/Products/Modules/Interface/MOD-RS485/

Title: Re: MOD-RS485-ISO or MOD-RS485 logic levels
Post by: LubOlimex on June 03, 2013, 08:16:19 AM

Hello dxmann,

It's 3.3V and it is located on the UEXT. More info on UEXT: http://en.wikipedia.org/wiki/UEXT (http://en.wikipedia.org/wiki/UEXT).

Best regards,
Lub/OLIMEX

Olimex Support Forum

Others => UEXT => Topic started by: dxmann on May 31, 2013, 01:33:53 PM