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This example is for Wiring version 1.0 build 0100+. If you have a previous version, use the examples included with your software. If you see any errors or have comments, please let us know.

Simple Serial communication by BARRAGAN http://barraganstudio.com
Demonstrates how to print data to the serial port. The data is received by MaxMSP. The MaxMSP patch is included below as text. Copy the text of the patch open a new patch in MaxMSP and paste.

    byte value = 0;

    void setup()
    {
      Serial.begin(9600);
    }

    void loop()
    {
      Serial.write(value);
      value = value + 1;
      delay(100);
    }

    /* MaxMSP patch copy, go to Max open a new patch and paste

    {
      "boxes" : [     {
          "box" :       {
            "maxclass" : "comment",
            "text" : "number object to see the data coming from the board",
            "patching_rect" : [ 150.0, 367.0, 293.0, 20.0 ],
            "id" : "obj-21",
            "fontname" : "Arial",
            "numinlets" : 1,
            "numoutlets" : 0,
            "fontsize" : 12.0
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "number",
            "patching_rect" : [ 54.0, 366.0, 50.0, 20.0 ],
            "id" : "obj-20",
            "fontname" : "Arial",
            "numinlets" : 1,
            "numoutlets" : 2,
            "fontsize" : 12.0,
            "outlettype" : [ "int", "bang" ]
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "comment",
            "text" : "toggle object to open/close the serial and start/stop the patch",
            "linecount" : 3,
            "patching_rect" : [ 97.0, 25.0, 150.0, 48.0 ],
            "id" : "obj-18",
            "fontname" : "Arial",
            "numinlets" : 1,
            "numoutlets" : 0,
            "fontsize" : 12.0
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "toggle",
            "patching_rect" : [ 54.0, 44.0, 20.0, 20.0 ],
            "id" : "obj-17",
            "numinlets" : 1,
            "numoutlets" : 1,
            "outlettype" : [ "int" ]
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "comment",
            "text" : "select object with two options, to trigger messages, close and port ",
            "linecount" : 2,
            "patching_rect" : [ 220.0, 114.0, 227.0, 34.0 ],
            "id" : "obj-16",
            "fontname" : "Arial",
            "numinlets" : 1,
            "numoutlets" : 0,
            "fontsize" : 12.0
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "newobj",
            "text" : "select 0 1",
            "patching_rect" : [ 147.0, 121.0, 62.0, 20.0 ],
            "id" : "obj-15",
            "fontname" : "Arial",
            "numinlets" : 1,
            "numoutlets" : 3,
            "fontsize" : 12.0,
            "outlettype" : [ "bang", "bang", "" ]
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "comment",
            "text" : "Queue-based metronome",
            "patching_rect" : [ 127.0, 89.0, 150.0, 20.0 ],
            "id" : "obj-14",
            "fontname" : "Arial",
            "numinlets" : 1,
            "numoutlets" : 0,
            "fontsize" : 12.0
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "newobj",
            "text" : "qmetro 10",
            "patching_rect" : [ 54.0, 102.0, 65.0, 20.0 ],
            "id" : "obj-13",
            "fontname" : "Arial",
            "numinlets" : 2,
            "numoutlets" : 1,
            "fontsize" : 12.0,
            "outlettype" : [ "bang" ]
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "comment",
            "text" : "The serial object, port at 9600bps",
            "patching_rect" : [ 150.0, 324.0, 188.0, 20.0 ],
            "id" : "obj-11",
            "fontname" : "Arial",
            "numinlets" : 1,
            "numoutlets" : 0,
            "fontsize" : 12.0
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "message",
            "text" : "close",
            "patching_rect" : [ 193.0, 269.0, 39.0, 18.0 ],
            "id" : "obj-10",
            "fontname" : "Arial",
            "numinlets" : 2,
            "numoutlets" : 1,
            "fontsize" : 12.0,
            "outlettype" : [ "" ]
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "comment",
            "text" : "add some message boxes and type their names for the basic communication, \"print\" (will print a list of serial ports), \"port a\" (to open the serial port) and \"close\" to close the serial port",
            "linecount" : 6,
            "patching_rect" : [ 257.0, 185.0, 175.0, 89.0 ],
            "id" : "obj-9",
            "fontname" : "Arial",
            "numinlets" : 1,
            "numoutlets" : 0,
            "fontsize" : 12.0
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "message",
            "text" : "print",
            "patching_rect" : [ 193.0, 187.0, 34.0, 18.0 ],
            "id" : "obj-8",
            "fontname" : "Arial",
            "numinlets" : 2,
            "numoutlets" : 1,
            "fontsize" : 12.0,
            "outlettype" : [ "" ]
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "message",
            "text" : "port a",
            "patching_rect" : [ 193.0, 222.0, 41.0, 18.0 ],
            "id" : "obj-7",
            "fontname" : "Arial",
            "numinlets" : 2,
            "numoutlets" : 1,
            "fontsize" : 12.0,
            "outlettype" : [ "" ]
          }

        }
    ,     {
          "box" :       {
            "maxclass" : "newobj",
            "text" : "serial a 9600",
            "patching_rect" : [ 54.0, 325.0, 79.0, 20.0 ],
            "id" : "obj-4",
            "fontname" : "Arial",
            "numinlets" : 1,
            "numoutlets" : 2,
            "fontsize" : 12.0,
            "outlettype" : [ "int", "" ]
          }

        }
     ],
      "lines" : [     {
          "patchline" :       {
            "source" : [ "obj-17", 0 ],
            "destination" : [ "obj-13", 0 ],
            "hidden" : 0,
            "midpoints" : [ 63.5, 82.5, 63.5, 82.5 ]
          }

        }
    ,     {
          "patchline" :       {
            "source" : [ "obj-17", 0 ],
            "destination" : [ "obj-15", 0 ],
            "hidden" : 0,
            "midpoints" : [ 63.5, 92.0, 156.5, 92.0 ]
          }

        }
    ,     {
          "patchline" :       {
            "source" : [ "obj-15", 1 ],
            "destination" : [ "obj-7", 0 ],
            "hidden" : 0,
            "midpoints" : [ 178.0, 219.0, 202.5, 219.0 ]
          }

        }
    ,     {
          "patchline" :       {
            "source" : [ "obj-7", 0 ],
            "destination" : [ "obj-4", 0 ],
            "hidden" : 0,
            "midpoints" : [ 202.5, 255.0, 63.5, 255.0 ]
          }

        }
    ,     {
          "patchline" :       {
            "source" : [ "obj-10", 0 ],
            "destination" : [ "obj-4", 0 ],
            "hidden" : 0,
            "midpoints" : [ 202.5, 309.0, 63.5, 309.0 ]
          }

        }
    ,     {
          "patchline" :       {
            "source" : [ "obj-4", 0 ],
            "destination" : [ "obj-20", 0 ],
            "hidden" : 0,
            "midpoints" : [  ]
          }

        }
    ,     {
          "patchline" :       {
            "source" : [ "obj-13", 0 ],
            "destination" : [ "obj-4", 0 ],
            "hidden" : 0,
            "midpoints" : [  ]
          }

        }
    ,     {
          "patchline" :       {
            "source" : [ "obj-15", 0 ],
            "destination" : [ "obj-10", 0 ],
            "hidden" : 0,
            "midpoints" : [ 156.5, 255.0, 202.5, 255.0 ]
          }

        }
    ,     {
          "patchline" :       {
            "source" : [ "obj-8", 0 ],
            "destination" : [ "obj-4", 0 ],
            "hidden" : 0,
            "midpoints" : [ 202.5, 207.0, 63.5, 207.0 ]
          }

        }
     ]
    }

    */