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    MINDSTORM, NXT-G & ISADORA

    Interfacing
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    • bruperB
      bruper
      last edited by

      exciting news gavspav you'reĀ  getting closer!

      17"MBP 2.93GHZ Core2Duo mid 2009 - OSX10.11.6 - 8GB, 1TBCrucial_SSD, izzy 3.0.7

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      • G
        gavspav Beta Silver
        last edited by

        Even closer now - got it working with the Pure Data sample patch and Isadora looked like it should work but then the batteries dies in the Nxt brick.

        Loads of batteries in them things. Send me some more!

        http://www.digitalfunfair.co.uk I'm using M1 MBP 14" mostly but sometimes use older Mac & Windows machines.

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        • bruperB
          bruper
          last edited by

          are you in London? I can take you some this w/e from Portugal šŸ™‚

          17"MBP 2.93GHZ Core2Duo mid 2009 - OSX10.11.6 - 8GB, 1TBCrucial_SSD, izzy 3.0.7

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          • G
            gavspav Beta Silver
            last edited by

            Ok finally I have some batteries and can now confirm that Isadora and LegoOsc DON'T work together!

            For some reason either LegoOsc or the NXT brick don't understand the OSC messages that Isadora is spitting out.
            The workaround would be to write some little bridging app in Max or PD that converts say midi to OSC that works.Ā 
            A simple if clumsy solution.

            http://www.digitalfunfair.co.uk I'm using M1 MBP 14" mostly but sometimes use older Mac & Windows machines.

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            • markM
              mark
              last edited by

              Dear Gavin,

              I can assure you that the OSC messages Isadora sends follow the standard. Have you tried turning off type tags? What kind of messages does the NXT brick expect? Is there any documentation on that?
              Best Wishes,
              Mark

              Media Artist & Creator of Isadora
              Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

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              • G
                gavspav Beta Silver
                last edited by

                Hmm well it could be human error but it really didn't seem like it. Maybe I'll have another look on Monday.

                If I turn off type tags then legoOsc doesn't receive/understand the incoming messages.
                I had the Pure Data example working and the legoosc java code reports the incoming OSC messages in its log window.
                I tried it with Isadora and had identical messages in the legoosc log window but the lego brick didn't respond. I assumed it was something to do with OSC message format as I have had Ā problems with this before (not just with Isadora).
                One thing which could potentially be causing problems is that the message is in the format /motorForward 0 i
                Could the spaces be causing an issue? Or the fact that I am sending integers?
                I'm straw clutching rather than employing logic.

                http://www.digitalfunfair.co.uk I'm using M1 MBP 14" mostly but sometimes use older Mac & Windows machines.

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                • markM
                  mark
                  last edited by

                  well what exactly comes after theĀ /motorForward part?

                  /motorForward is a valid OSC address.
                  But is the rest text? is the actual message "0 i" (less the quotes) ? Or???
                  Best Wishes,
                  Mark

                  Media Artist & Creator of Isadora
                  Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

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                  • bruperB
                    bruper
                    last edited by

                    may I send you some good vibes of encouragement not to give up??!! thank you

                    17"MBP 2.93GHZ Core2Duo mid 2009 - OSX10.11.6 - 8GB, 1TBCrucial_SSD, izzy 3.0.7

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                    • G
                      gavspav Beta Silver
                      last edited by

                      It's /motorForward i n

                      where i is the number of the motor and n is the speed of the motor.
                      So, "/motorForward 1 4" would tell motor 1 to turn quite slowly and
                      Ā "/motorForward 1 127" would tell it to turn alot quicker.
                      There are no quotes in the message - I just put those in. I've never seen an OSC message like that before normally its /address/ value but this is the way it seems to be with LegoOSC.
                      The pure data patch sends /MotorForward 1 $1 (where $1 is the value) and it works.
                      Isadora - I set the transmit address to /MotorForward 1 with the value determined by the value input of course.
                      Like I said the values received by LegoOsc look identical in the log window, except it don't work.

                      http://www.digitalfunfair.co.uk I'm using M1 MBP 14" mostly but sometimes use older Mac & Windows machines.

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                      • markM
                        mark
                        last edited by

                        Is it possible to send the Pure Data patch that outputs the working values. I could analyze them to see how they are different than what Isadora sends.

                        Best Wishes,
                        Mark

                        Media Artist & Creator of Isadora
                        Macintosh SE-30, 32 Mb RAM, MacOS 7.6, Dual Floppy Drives

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                        • G
                          gavspav Beta Silver
                          last edited by

                          Here we are. 2e4051-nxt.pd.zip

                          http://www.digitalfunfair.co.uk I'm using M1 MBP 14" mostly but sometimes use older Mac & Windows machines.

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