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I'm trying to do a simple LIN bus sniffing in my car with an Arduino. This should be possible with a simple voltage divider if I'm not wrong.

Would this schematic work?

0-12V in
       |
     [10k]
       |
       +-->0 to 4.86V out to Arduino
       |
     [6k8]
       |
      VEHICLE GND
blunde
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  • Why don't you use a LIN transceiver like [this one](https://www.onsemi.com/pub/Collateral/NCV7428-D.PDF) ? – Rohat Kılıç Feb 17 '20 at 10:39
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    I don't need to send any information, only listen for a given command. – blunde Feb 17 '20 at 10:44
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    Then you should use a buffer, anyways. It's not guaranteed to have 12VDC for the logic-hi on LIN, so you may not get ~5VDC on logic-hi. I would use a comparator plus a buffer. – Rohat Kılıç Feb 17 '20 at 10:47
  • This question has corresponding answer: https://electronics.stackexchange.com/questions/493172/connect-to-lin-bus-with-logic-level-shifter-as-transceiver – brigadir Apr 15 '20 at 08:49
  • Did you succeed with linbus sniffing on your car – obd2center pro Aug 28 '22 at 15:38
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    Does this answer your question? [Connect to LIN bus with logic level shifter as transceiver](https://electronics.stackexchange.com/questions/493172/connect-to-lin-bus-with-logic-level-shifter-as-transceiver) – Kuba hasn't forgotten Monica Aug 28 '22 at 15:52
  • @obd2centerpro No, i bought a LINbus sniffer module, but sold the car before i could test it :( – blunde Jan 05 '23 at 09:48

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