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Testing TTL-RS485 Adapters

Home Forums Mayfly Data Logger Testing TTL-RS485 Adapters

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    • #15551
      James_NZ
      Participant
        Hi all,

        I am going the the process of building 10 x modbus wings for Yosemitech sensors. Most people are probably aware of the lack of quality control on these adapters, so I would like to test them

      • #15552
        Shannon Hicks
        Moderator
          It depends on what kind of pinout is on the adapter board.  I’m not familiar with them since I don’t use them, but you could probably make a test jig with pogo pins, or if the boards have
        • #15553
          Anthony Aufdenkampe
          Participant
            James, we’ve been playing with hardware designed for this for quite some time (as a subfolder in our SensorModbusMaster repo), and
          • #15555
            Anthony Aufdenkampe
            Participant

              James, by the way, I would suggest that you NOT solder anything to the wing headers. Our two options just plug into them and can be removed anytime, just like an Arduino shield.

            • #15558
              James_NZ
              Participant
                Hi @shicks. Thank you. I was considering pogo pins. I assume you just solder them in and push the adapter board down to test? I guess I could also solder female headers into the wingshield holes and m
              • #15560
                Anthony Aufdenkampe
                Participant
                  James, I’m glad to see that you’re using our DIY Mayfly-Modbus-Wing. Yes, soldering the DIY windshield is requi
                • #15561
                  James_NZ
                  Participant
                    Hi @aufdenkampe,

                    That’s really good news.  Yes I was reading through some historical issues on git-hub about problems with the Polo

                  • #15562
                    James_NZ
                    Participant

                      Also, for anyone who is interested.  My solution to testing multiple TTL-RS485 adapters with one rig can be seen in the attached photo.

                      James

                    • #15567
                      Anthony Aufdenkampe
                      Participant
                        @james-dareboprc-govt-nz, those power issues you came across on GitHub (regarding getting the brush to spin and wondering about setting the spin rate) were quite old (2017?) when we first started usin
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