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    Write to serial port with Ruby [SOLVED!]

    Scheduled Pinned Locked Moved SketchyPhysics
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    • D Offline
      driven
      last edited by

      have either of you had a look at RubySerial
      http://artoo.io/blog/2014/07/18/introducing-rubyserial/#.VPMWVUKUmDA
      it's on my 'long' list but I haven't chased it up yet...
      john

      learn from the mistakes of others, you may not live long enough to make them all yourself...

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      • A Offline
        Anton_S
        last edited by

        Nice find, John!

        I find it very convincing as it has been kept up to date with latest Ruby version and doesn't require installation of Python. However, it does require Ruby FFI gem, which needs to have some tweaking before it can be used with SU.

        Anton

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        • B Offline
          Bas9999
          last edited by

          Hi Anton_S & driven,

          Wow, i really hope you can make this work!, so that we can use the new SU version to communicate with a serial port, we can make lots of cool things with Arduino & Raspberry.

          If i need to test something, let me know!

          Thanks in forward!

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          • B Offline
            Bas9999
            last edited by

            Hello Anton_S

            I've tested it with Sketchup 2015... 😍 , it works like a charm!

            This is the code to read data for the serial port so far...

            onstart{
              @serial = Serial.new('COM8', 9600)
            }
             
            ontick{
              MSketchyPhysics3.closeControlPanel if frame == 1
              $serialdata = eval(@serial.read(1024))
              logLine("Serial data; " + $serialdata.to_s)
              logLine("")
              logLine("")
              logLine("")
              logLine("")
              logLine("")
              logLine("")
            }
            
            onend{
              @serial.close
            }
            

            Thank you!, i see if i can make a script that SENDS data to the Arduino / Raspberry...

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            • M Offline
              mptak
              last edited by

              I see you tested it with SU2015...this confuses me. Were you using the 64 bit version of sketchup? Which Sketchy Physics download did you use? Thanks.

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              • A Offline
                Anton_S
                last edited by

                I'm glad it works with SU2014 😉

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                • B Offline
                  Bas9999
                  last edited by

                  @mptak said:

                  I see you tested it with SU2015...this confuses me. Were you using the 64 bit version of sketchup? Which Sketchy Physics download did you use? Thanks.

                  No, i used the 32-bit version of SU2015, sketchyphysics does not work on 64-bit (yet)

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                  • B Offline
                    Bas9999
                    last edited by

                    Hi All,

                    This is an example how to SEND data to the Arduino with SU 14/15, SketchyPhysics and Ruby Serial

                    First the Arduino programming, here is the code to lit the integrated LED on digital 13, when there is a serial "1" recieved, the LED goes out when there is a "0" recieved.

                    Arduino code:

                    String readString;
                    
                    void setup() {
                      pinMode(13, OUTPUT);
                      Serial.begin(9600);
                    }
                     
                    void loop() {
                      while (Serial.available()) {
                        delay(3);
                        if (Serial.available() >0) {
                          char c = Serial.read();
                          readString += c;
                        } 
                      }
                     
                      if (readString.length() >0) {
                        if (readString == "1") { digitalWrite(13, HIGH); }
                        if (readString == "0") { digitalWrite(13, LOW); }
                        readString = "";
                      } 
                    }
                    

                    Now...once programmed, create a sketchyphysics solid and paste this code in it:

                    onstart{
                      @serial = Serial.new('COM8', 9600)
                    }
                    
                    onclick{
                      @m = Sketchup.active_model.materials.add "My material"
                      group.material = @m
                      @m.color="Yellow"
                    
                      logLine("LED ON!")
                      @serial.write('1')
                    }
                    
                    onunclick{
                      @m = Sketchup.active_model.materials.add "My material"
                      group.material = @m
                      @m.color="White"
                    
                      logLine("LED OFF!")
                      @serial.write('0')
                    }
                    
                    ontick{
                      MSketchyPhysics3.closeControlPanel if frame == 1
                    }
                    
                    onend{
                      @serial.close
                    }
                    

                    How does this work?
                    When you run the script and click on the solid, the color will change to yellow and over the serial port a "1" will be send, de Arduino will recieve this "1" and will put on the LED light, when you release the mouse button, the model changes color back to white and a "0" will be sent, the Arduino recieves this and will put the LED light out!

                    Have fun!

                    Ps. Is there any code to read out a textbox or something (userinput possible?), where the user can specify the COMPORT and BAUDRATE?

                    SU_14_15_Ruby Serial Sketchup Sketchyphysics screen.jpg

                    I think i will start to create the 204/2015 walktrough soon!, this will be the banner for the
                    projects:
                    SketchyPhysics serial banner.jpg


                    SU_14_15 - Ruby Serial SEND Example with Sketchup Sketchyphysics.skp

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                    • B Offline
                      Bas9999
                      last edited by

                      Hi Anton_S

                      *EDIT SOLVED!!! SEE BELOW

                      Could you assist on this one?

                      When for example i use a diffrent baudrate (on purpose) i still get this error:
                      sp su15 serial recieve error baudrate.png

                      The original code was:

                      ontick{
                        MSketchyPhysics3.closeControlPanel if frame == 1
                        string_size = 1024
                        $serialdata = eval(@serial.read(string_size))
                      }
                      

                      I changed it to this, but that doesn't work:

                      ontick{
                        MSketchyPhysics3.closeControlPanel if frame == 1
                        string_size = 1024
                      
                        begin
                          $serialdata = eval(@serial.read(string_size))
                        rescue RubySerial;;Exception => e
                          @serial.close if @serial
                          MSketchyPhysics3;;SketchyPhysicsClient.physicsReset
                          UI.messagebox("ERROR!")
                        end
                      }
                      

                      How to catch this error?

                      *EDIT SOLVED!!!
                      I just changed the line to:

                      $serialdata = @serial.read(string_size)
                      

                      so it's only:

                      ontick{
                        MSketchyPhysics3.closeControlPanel if frame == 1
                        $serialdata = eval(@serial.read(1024))
                      }
                      
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                      • P Offline
                        picpic020960
                        last edited by

                        Hello

                        fine !

                        but the link above is dead

                        https://googledrive.com/host/0B3qg8f4WrNdHdHVyLVFuaHRjOTA/ffi%20+%20rubyserial.zip

                        help and thanks

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                        • A Offline
                          Anton_S
                          last edited by

                          Hello Bas9999,

                          I managed to tweak ffi and rubyserial (suggested by driven) into the plugins for SU. Download
                          https://googledrive.com/host/0B3qg8f4WrNdHdHVyLVFuaHRjOTA/ffi + rubyserial.zip
                          ffi + rubyserial.zip and extract into the plugins folder. It should work on Windows with SU2014 and SU2015. The advantage of it is that it doesn't require Python to run.

                          Here is RubySerial usage Wiki: https://github.com/hybridgroup/rubyserial
                          This is how I think your code should look like:

                          
                          onstart {
                            @serial = Serial.new('COM8', 9600)
                          }
                          
                          ontick {
                            string_size = 1024
                            $serialdata = eval( @serial.read(string_size) )
                          }
                          
                          onend {
                            @serial.close
                          }
                          
                          

                          Note: If particular serial port does not exist, an error will be raised causing simulation to reset.

                          If you want ffi and rubyserial to work with SU2013 and prior, you should upgrade SU ruby msvcrt to 1.8.6 or later. Do this by going to SketchUp Program Files, to the path of SketchUp.exe, and replace msvcrt-ruby18.dll with the new one, which can be downloaded [url=https://googledrive.com/host/0B3qg8f4WrNdHdHVyLVFuaHRjOTA/msvcrt-ruby18.zip:196vcuuf]here[/url:196vcuuf].

                          Tell me how it goes as I don't think I have any serial ports to test myself.

                          Anton

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                          • A Offline
                            Anton_S
                            last edited by

                            That's strange. For some reason SketchyUcation can't parse the url properly. Try using this unparsed link instead: https://googledrive.com/host/0B3qg8f4WrNdHdHVyLVFuaHRjOTA/ffi + rubyserial.zip

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                            • P Offline
                              picpic020960
                              last edited by

                              Thanks

                              the download is OK

                              but other pb : i want to test the bas9999 example but

                              it's SU2015 version.

                              On my Vista dsktop only SU2014 supported.

                              Can everybody downgrade bas9999 sketchup model file from SU2015 to SU2014

                              More thanks

                              NB : maybe the serial port work with ruby without SU-Physics ?

                               if yes , how to ?
                              
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                              • TIGT Offline
                                TIG Moderator
                                last edited by

                                Here's a v2014 version SU_14_15 - Ruby Serial SEND Example with Sketchup Sketchyphysics[v2014].skp

                                TIG

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                                • A Offline
                                  Anton_S
                                  last edited by

                                  @picpic020960 said:

                                  NB : maybe the serial port work with ruby without SU-Physics ?
                                  if yes , how to ?

                                  Yes, Ruby Serial works without SketchyPhysics.

                                  It's easy to use:

                                  
                                  # Require the library
                                  require 'rubyserial'
                                  
                                  # Instantiate serial
                                  my_serial = Serial.new(address, baude_rate = 9600, data_bits = 8)
                                  
                                  # Get data and do whatever you want with it
                                  size = 1024
                                  data = my_serial.read(size)
                                  
                                  # Set data
                                  data = ""
                                  my_serial.write(data)
                                  
                                  # Close serial once you're done using it
                                  my_serial.close
                                  my_serial = nil
                                  
                                  

                                  See this link for more info: https://github.com/hybridgroup/rubyserial

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                                  • T Offline
                                    tomasz
                                    last edited by

                                    @anton_s said:

                                    Yes, Ruby Serial works without SketchyPhysics.

                                    I installed the 'rubyserial' gem, but the initialization of Serial.new("COM3")
                                    crashes for me in SU2019 Win 10.

                                    rubyserial-0.6.0.gem
                                    ffi-1.11.3-x64-mingw32.gem

                                    I will try to figure out why it does that.
                                    Does anyone have had a success with 'rubyserial' in SU2019?

                                    Author of [Thea Render for SketchUp](http://www.thearender.com/sketchup)

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                                    • T Offline
                                      tomasz
                                      last edited by

                                      I have found the answer. It is ffi gem crashing in Win10 in SU2017...18...19

                                      Link Preview Image
                                      SketchUp crashes when FFI is loaded in Windows 10

                                      Hi, I’m trying to load the FFI gem version (ffi-1.9.17-x64-mingw32) in Windows 10, Sketchup 2017 (maintenance build - 17.2.2555). Edit note: In my old post, I had only loaded the ffi_c.so file corresponding to ruby ver…

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                                      SketchUp Community (forums.sketchup.com)

                                      Author of [Thea Render for SketchUp](http://www.thearender.com/sketchup)

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