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Reply To: Code change for Meter Hydros 21 CTD

Home Forums Mayfly Data Logger Code change for Meter Hydros 21 CTD Reply To: Code change for Meter Hydros 21 CTD

Shannon Hicks

    Yes, the update made to the ModularSensors code in in order to fix Hydros 21 is backwards compatible.  I mentioned it last week in this post: https://www.envirodiy.org/topic/hydros-21-decagon-ctd-reading-error/#post-17066

    It seems that in the past year Meter Group made some changes to the amount of time the CTD sensors need to take a measurement, so we increased the wait time from 500 milliseconds to 1000 milliseconds.  If you use the new code to talk to an older sensor, all you’re doing is waiting an extra half second, so there’s no reason to keep the old code.