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Reply To: Logging Mayfly with Decagon SDI-12 Sensor

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2020-08-18 at 12:57 PM #14484
neilh20
Participant

    Just an FYI,  as I understand the SDI-12 spec, the receiving instrument should receive 3.5V for a ‘0’ or space.   The mayfly port is only capable of supplying 3.3V – so it may work for most SDI-12 instruments, and is working for one SDI-12 instrument I’m using

    Typically with off-spec issues, things can work on some instruments and then not  on others. So hopefully the problem is something simple, but just sharing my analysis.

    Attachments:

    1. SDI-12_version1_4-Table1-VoltageLevels-1.jpg