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Please Help! Meter CTD Gen2 being blocked by Yosemitech 511-a

Home Forums Environmental Sensors Please Help! Meter CTD Gen2 being blocked by Yosemitech 511-a

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    • #17563
      James_NZ
      Participant
        Hi everyone,

        This problem has been causing me trouble for nearly a year, but it has become unworkable with installation of Gen2 Meter CTD sensors.

        My problem: Meter CTD (SDI12) and

      • #17564
        Sara Damiano
        Moderator
          The ModularSensors library is running the SDI-12 sensors in “concurrent” mode and the modbus communication only happens when initiated by the logger.  So the two sensors really should not
        • #17566
          Shannon Hicks
          Moderator
            We’ve been using Y-511a sensors together with Gen 2 Hydros21 CTD sensors and have had no problems with communication, however we’re using our own modbus adapter (based on a MAX13412 chip)
          • #17569
            James_NZ
            Participant
              Thank you both for your reply.  Okay, so it seems that I may be barking up the wrong tree with that one.  I will try Sara’s build flag to see if that works, but I’m not holding my breath
            • #17573
              James_NZ
              Participant

                @shicks, would you mind publishing your Y-511a +  Gen 2 Hydros21 CTD code so I can ensure I haven’t done anything wrong on that front?

                Thanks in advance.

                James

                 

              • #17574
                Shannon Hicks
                Moderator
                  Here’s my code that has been successfully working on a Mayfly v1.1 RevB board, with a Hydros21 connected to the D4-7 Grove jack (with jumper set to the switched 3v setting) and a Y-511a and our
                • #17581
                  James_NZ
                  Participant
                    Hi @shicks and  @srgdamiano.  You’re not going to believe it but the additio
                  • #18239
                    mbullard
                    Participant
                      (I am placing this comment here rather than start a new topic because of similarities)

                      We have two stations that developed the same problem in August of 2023. One station is here: 

                      • #18243
                        Shannon Hicks
                        Moderator
                          The Yosemitech Y-511A needs 12v to operate, so it won’t be happy if you modify the Mayfly jumper to set the 12v output to 9v.  I’m not familiar with the operation of the modbus wing you&#
                      • #18253
                        mbullard
                        Participant
                          Thank you for the quick response, we are looking forward to the new modbus adater.  Meanwhile, we made some quick changes to  existing wingboards to power the Y-511A from the 12v available on the V1
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