Initial add of Timothy Twillman's Arduino Midi library 1.2.2

1 files changed, 98 insertions, 0 deletions

diff --git a/examples/MidiReceiveExample/MidiReceiveExample.pde b/examples/MidiReceiveExample/MidiReceiveExample.pde
new file mode 100644
index 0000000..36a8c30
--- /dev/null
+++ b/examples/MidiReceiveExample/MidiReceiveExample.pde
@@ -0,0 +1,98 @@
+// This sketch turns on the LED at D13 when any "NOTE ON" message is received.
+//  It turns the LED off when any "NOTE OFF" message is received.
+//
+// (note that NOTE ON's with velocity = 0 are actually NOTE OFF's, and are
+//  treated as such)
+//
+// It's necessary to subclass Midi in order to handle receiving messages.  If
+//  you're only sending data, see MidiSendExample, which is a bit simpler.
+//
+// If you're both sending AND receiving you'll need to subclass like this,
+//  but only for receive functions.
+//
+
+#include "Midi.h"
+
+// To use the Midi class for receiving Midi messages, you need to subclass it.
+//  If you're a C++ person this makes sense; if not, just follow the example
+//  functions below.
+//
+// Basically, MyMidi here can do anything Midi can do -- it just has the ability
+//  to easily change what the functions do when different message types are received.
+//
+class MyMidi : public Midi {
+  public:
+  
+  // Need this to compile; it just hands things off to the Midi class.
+  MyMidi(HardwareSerial &s) : Midi(s) {}
+  
+  void handleNoteOn(unsigned int channel, unsigned int note, unsigned int velocity)
+  {
+    digitalWrite(13, HIGH);
+  }
+
+  void handleNoteOff(unsigned int channel, unsigned int note, unsigned int velocity)
+  {
+    digitalWrite(13, LOW);
+  }
+  
+  /* You can define any of these functions and they will be called when the
+     matching message type is received.  Otherwise those types of Midi messages
+     are just ignored.
+
+    For C++ folks: these are all declared virtual in the base class
+
+    void handleNoteOff(unsigned int channel, unsigned int note, unsigned int velocity);
+    void handleNoteOn(unsigned int channel, unsigned int note, unsigned int velocity);
+    void handleVelocityChange(unsigned int channel, unsigned int note, unsigned int velocity);
+    void handleControlChange(unsigned int channel, unsigned int controller, unsigned int value);
+    void handleProgramChange(unsigned int channel, unsigned int program);
+    void handleAfterTouch(unsigned int channel, unsigned int velocity);
+    void handlePitchChange(unsigned int pitch);
+    void handleSongPosition(unsigned int position);
+    void handleSongSelect(unsigned int song);
+    void handleRuneRequest(void);
+    void handleSync(void);
+    void handleStart(void);
+    void handleContinue(void);
+    void handleStop(void);
+    void handleActiveSense(void);
+    void handleReset(void);
+*/
+};
+
+// Create an instance of the MyMidi class.
+MyMidi midi(Serial);
+
+
+void setup()
+{
+  pinMode(13, OUTPUT);
+  
+  // This causes the midi object to listen to ALL Midi channels.  If a number
+  //  from 1-16 is passed, messages will be filtered so that any messages to
+  //  channels other than the given one will be ignored.
+  //
+  // Note that you can pass a second parameter as a baud rate, if you're doing
+  //  Midi protocol but using some other communication method (e.g. sending
+  //  Midi data from Max/MSP using the standard Arduino USB connection, you
+  //  can set the baud rate to something more standard and use the regular
+  //  Max serial object)
+  midi.begin(0);
+}
+
+
+void loop()
+{
+  // Must be called every time through loop() IF dealing with incoming MIDI --
+  //  if you're just sending MIDI out, you don't need to use poll().
+  //
+  // Make sure other code doesn't take too long to process or serial data
+  //  can get backed up (and you can end up with obnoxious latency that ears
+  //  don't like).
+  //
+  // The poll function will cause the midi code to suck data from the serial 
+  //  port and process it, and call any functions that are defined for handling
+  //  midi messages.
+  midi.poll();
+}