Make OBD II uart 3.3v compatible

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BeinerF
Posts: 2
Joined: Tue Sep 26, 2017 3:37 pm

Make OBD II uart 3.3v compatible

Post by BeinerF »

Hi,
I got my hands on an OBD II uart adapter. As far as I understand the uart level is 5v. Is their an easy fix on the board, e.g. replacing a couple of resistors, to make the uart 3v3 compatible.
I would love to avoid a level shifter.
Thank you.
stanley
Site Admin
Posts: 1018
Joined: Sat Mar 01, 2014 3:15 am

Re: Make OBD II uart 3.3v compatible

Post by stanley »

The UART signal is 3.3v compatible.
BeinerF
Posts: 2
Joined: Tue Sep 26, 2017 3:37 pm

Re: Make OBD II uart 3.3v compatible

Post by BeinerF »

Sorted... Thanks!
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