Initial add of Timothy Twillman's Arduino Midi library 1.2.2

6 files changed, 1517 insertions, 0 deletions

diff --git a/LGPL.txt b/LGPL.txt
new file mode 100755
index 0000000..b1e3f5a
--- /dev/null
+++ b/LGPL.txt
@@ -0,0 +1,504 @@
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diff --git a/Midi.cpp b/Midi.cpp
new file mode 100644
index 0000000..612b4bb
--- /dev/null
+++ b/Midi.cpp
@@ -0,0 +1,482 @@
+/*  Midi.cpp: Code for MIDI processing library, Arduino version
+ *
+ *             (c) 2003-2008 Tymm Twillman <tymm@booyaka.com>
+ *
+ *  This file is part of Tymm's Arduino Midi Library.
+ *
+ *  Tymm's Arduino Midi Library is free software: you can redistribute it
+ *  and/or modify it under the terms of the GNU Lesser General Public 
+ *  License as published by the Free Software Foundation, either version 2.1 
+ *  of the License, or (at your option) any later version.
+ *
+ *  Tymm's Arduino Midi Library is distributed in the hope that it will be
+ *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with Tymm's Arduino Midi Library.  If not, see
+ *  <http://www.gnu.org/licenses/>.
+ */
+ 
+#include "HardwareSerial.h"
+#include "WConstants.h"
+#include "Midi.h"
+
+
+// This is used for tracking when we're processing a proprietary stream of data
+//  The assigned value is arbitrary; just for internal use.
+static const int MODE_PROPRIETARY = 0xff;
+
+
+// These are midi status message types as sent on the wire
+static const int STATUS_EVENT_NOTE_OFF        = 0x80;
+static const int STATUS_EVENT_NOTE_ON         = 0x90;
+static const int STATUS_EVENT_VELOCITY_CHANGE = 0xA0;
+static const int STATUS_EVENT_CONTROL_CHANGE  = 0xB0;
+static const int STATUS_EVENT_PROGRAM_CHANGE  = 0xC0;
+static const int STATUS_AFTER_TOUCH           = 0xD0;
+static const int STATUS_PITCH_CHANGE          = 0xE0;
+static const int STATUS_START_PROPRIETARY     = 0xF0;
+static const int STATUS_SONG_POSITION         = 0xF2;
+static const int STATUS_SONG_SELECT           = 0xF3;
+static const int STATUS_TUNE_REQUEST          = 0xF6;
+static const int STATUS_END_PROPRIETARY       = 0xF7;
+static const int STATUS_SYNC                  = 0xF8;
+static const int STATUS_START                 = 0xFA;
+static const int STATUS_CONTINUE              = 0xFB;
+static const int STATUS_STOP                  = 0xFC;
+static const int STATUS_ACTIVE_SENSE          = 0xFE;
+static const int STATUS_RESET                 = 0xFF;
+    
+
+
+// Handle decoding incoming MIDI traffic a byte at a time -- remembers
+//  what it needs to from one call to the next.
+//
+//  This is a private function & not meant to be called from outside this class.
+//  It's used whenever data is available from the serial port.
+//
+void Midi::recvByte(int byte)
+{
+    int tmp;
+    int channel;
+    int bigval;           /*  temp 14-bit value for pitch, song pos */
+
+
+    if (recvMode_ & MODE_PROPRIETARY
+      && byte != STATUS_END_PROPRIETARY)
+    {
+        /* If proprietary handling compiled in, just pass all data received
+         *  after a START_PROPRIETARY event to proprietary_decode
+         *  until get an END_PROPRIETARY event
+         */
+
+#ifdef CONFIG_MIDI_PROPRIETARY
+        proprietaryDecode(byte);
+#endif
+
+        return;
+    }
+
+    if (byte & 0x80) {
+    
+        /* All < 0xf0 events get at least 1 arg byte so
+         *  it's ok to mask off the low 4 bits to figure
+         *  out how to handle the event for < 0xf0 events.
+         */
+
+        tmp = byte;
+
+        if (tmp < 0xf0)
+            tmp &= 0xf0;
+
+        switch (tmp) {
+            /* These status events take 2 bytes as arguments */
+            case STATUS_EVENT_NOTE_OFF:
+            case STATUS_EVENT_NOTE_ON:
+            case STATUS_EVENT_VELOCITY_CHANGE:
+            case STATUS_EVENT_CONTROL_CHANGE:
+            case STATUS_PITCH_CHANGE:
+            case STATUS_SONG_POSITION:
+                recvBytesNeeded_ = 2;
+                recvByteCount_ = 0;
+                recvEvent_ = byte;
+                break;
+
+            /* 1 byte arguments */
+            case STATUS_EVENT_PROGRAM_CHANGE:
+            case STATUS_AFTER_TOUCH:
+            case STATUS_SONG_SELECT:
+                recvBytesNeeded_ = 1;
+                recvByteCount_ = 0;
+                recvEvent_ = byte;
+                return;
+
+            /* No arguments ( > 0xf0 events) */
+            case STATUS_START_PROPRIETARY:
+                recvMode_ |= MODE_PROPRIETARY;
+
+#ifdef CONFIG_MIDI_PROPRIETARY
+                proprietaryDecodeStart();
+#endif
+
+                break;
+            case STATUS_END_PROPRIETARY:
+                recvMode_ &= ~MODE_PROPRIETARY;
+
+#ifdef CONFIG_MIDI_PROPRIETARY
+                proprietaryDecodeEnd();
+#endif
+
+                break;
+            case STATUS_TUNE_REQUEST:
+                handleTuneRequest();
+                break;
+            case STATUS_SYNC:
+                handleSync();
+                break;
+            case STATUS_START:
+                handleStart();
+                break;
+            case STATUS_CONTINUE:
+                handleContinue();
+                break;
+            case STATUS_STOP:
+                handleStop();
+                break;
+            case STATUS_ACTIVE_SENSE:
+                handleActiveSense();
+                break;
+            case STATUS_RESET:
+                handleReset();
+                break;
+        }
+
+        return;
+    }
+
+    if (++recvByteCount_ == recvBytesNeeded_) {
+        /* Copy out the channel (if applicable; in some cases this will be meaningless,
+         *  but in those cases the value will be ignored)
+         */
+        channel = (recvEvent_ & 0x0f) + 1;
+
+        tmp = recvEvent_;
+        if (tmp < 0xf0) {
+            tmp &= 0xf0;
+        }
+
+        /* See if this event matches our MIDI channel
+         *  (or we're accepting for all channels)
+         */
+        if (!channelIn_
+             || (channel == channelIn_)
+             || (tmp >= 0xf0))
+        {
+            switch (tmp) {
+                case STATUS_EVENT_NOTE_ON:
+                    /* If velocity is 0, it's actually a note off & should fall thru
+                     *  to the note off case
+                     */
+                    if (byte) {
+                        handleNoteOn(channel, recvArg0_, byte);
+                        break;
+                    }
+
+                case STATUS_EVENT_NOTE_OFF:
+                    handleNoteOff(channel, recvArg0_, byte);
+                    break;
+                case STATUS_EVENT_VELOCITY_CHANGE:
+                    handleVelocityChange(channel, recvArg0_, byte);
+                    break;
+                case STATUS_EVENT_CONTROL_CHANGE:
+                    handleControlChange(channel, recvArg0_, byte);
+                    break;
+                case STATUS_EVENT_PROGRAM_CHANGE:
+                    handleProgramChange(channel, byte);
+                    break;
+                case STATUS_AFTER_TOUCH:
+                    handleAfterTouch(channel, byte);
+                    break;
+                case STATUS_PITCH_CHANGE:
+                    bigval = (byte << 7) | recvArg0_;
+                    handlePitchChange(bigval);
+                    break;
+                case STATUS_SONG_POSITION:
+                    bigval = (byte << 7) | recvArg0_;
+                    handleSongPosition(bigval);
+                    break;
+                case STATUS_SONG_SELECT:
+                    handleSongSelect(byte);
+                    break;
+            }
+        }
+
+        /* Just reset the byte count; keep the same event -- might get more messages
+            trailing from current event.
+         */
+        recvByteCount_ = 0;
+    }
+    
+    recvArg0_ = byte;
+}
+
+
+// Try to read data at serial port & pass anything read to processing function
+void Midi::poll(void)
+{
+    int c;
+    
+    
+    // Just keep sucking data from serial port until it runs out, processing
+    //  MIDI messages as we go
+    while((c = serial_.read()) != -1) {
+        recvByte(c);
+    }
+}
+
+
+// Send Midi NOTE OFF message to a given channel, with note 0-127 and velocity 0-127
+void Midi::sendNoteOff(unsigned int channel, unsigned int note, unsigned int velocity)
+{
+    int status = STATUS_EVENT_NOTE_OFF | ((channel - 1) & 0x0f);
+    
+    
+    if (sendFullCommands_ || (lastStatusSent_ != status)) {
+        serial_.print(status, BYTE);
+    }
+    
+    serial_.print(note & 0x7f, BYTE);
+    serial_.print(velocity & 0x7f, BYTE);
+}
+
+
+// Send Midi NOTE ON message to a given channel, with note 0-127 and velocity 0-127
+void Midi::sendNoteOn(unsigned int channel, unsigned int note, unsigned int velocity)
+{
+    int status = STATUS_EVENT_NOTE_ON | ((channel - 1) & 0x0f);
+    
+    
+    if (sendFullCommands_ || (lastStatusSent_ != status)) {
+        serial_.print(status, BYTE);
+    }
+    
+    serial_.print(note & 0x7f, BYTE);
+    serial_.print(velocity & 0x7f, BYTE);
+}
+
+
+// Send a Midi VELOCITY CHANGE message to a given channel, with given note 0-127,
+//  and new velocity 0-127
+void Midi::sendVelocityChange(unsigned int channel, unsigned int note, unsigned int velocity)
+{
+    int status = STATUS_EVENT_VELOCITY_CHANGE | ((channel - 1) & 0x0f);
+    
+    
+    if (sendFullCommands_ || (lastStatusSent_ != status)) {
+        serial_.print(status, BYTE);
+    }
+    
+    serial_.print(note & 0x7f, BYTE);
+    serial_.print(velocity & 0x7f, BYTE);
+}
+
+
+// Send a Midi CC message to a given channel, as a given controller 0-127, with given
+//  value 0-127
+void Midi::sendControlChange(unsigned int channel, unsigned int controller, unsigned int value)
+{
+    int status = STATUS_EVENT_CONTROL_CHANGE | ((channel - 1) & 0x0f);
+    
+    
+    if (sendFullCommands_ || (lastStatusSent_ != status)) {
+        serial_.print(status, BYTE);
+    }
+    
+    serial_.print(controller & 0x7f, BYTE);
+    serial_.print(value & 0x7f, BYTE);
+}
+
+
+// Send a Midi PROGRAM CHANGE message to given channel, with program ID 0-127
+void Midi::sendProgramChange(unsigned int channel, unsigned int program)
+{
+    int status = STATUS_EVENT_PROGRAM_CHANGE | ((channel - 1) & 0x0f);
+    
+    
+    if (sendFullCommands_ || (lastStatusSent_ != status)) {
+        serial_.print(status, BYTE);
+    }
+
+    serial_.print(program & 0x7f, BYTE);
+}
+
+
+// Send a Midi AFTER TOUCH message to given channel, with velocity 0-127
+void Midi::sendAfterTouch(unsigned int channel, unsigned int velocity)
+{
+    int status = STATUS_AFTER_TOUCH | ((channel - 1) & 0x0f);
+    
+    
+    if (sendFullCommands_ || (lastStatusSent_ != status)) {
+        serial_.print(status, BYTE);
+    }
+
+    serial_.print(velocity & 0x7f, BYTE);
+}
+
+
+// Send a Midi PITCH CHANGE message, with a 14-bit pitch (always for all channels)
+void Midi::sendPitchChange(unsigned int pitch)
+{
+    serial_.print(STATUS_PITCH_CHANGE, BYTE);
+    serial_.print(pitch & 0x7f, BYTE);
+    serial_.print((pitch >> 7) & 0x7f, BYTE);
+}
+
+
+// Send a Midi SONG POSITION message, with a 14-bit position (always for all channels)
+void Midi::sendSongPosition(unsigned int position)
+{
+    serial_.print(STATUS_SONG_POSITION, BYTE);
+    serial_.print(position & 0x7f, BYTE);
+    serial_.print((position >> 7) & 0x7f, BYTE);
+}
+
+
+// Send a Midi SONG SELECT message, with a song ID of 0-127 (always for all channels)
+void Midi::sendSongSelect(unsigned int song)
+{
+    serial_.print(STATUS_SONG_SELECT, BYTE);
+    serial_.print(song & 0x7f, BYTE);
+}
+
+
+// Send a Midi TUNE REQUEST message (TUNE REQUEST is always for all channels)
+void Midi::sendTuneRequest(void)
+{
+    serial_.print(STATUS_TUNE_REQUEST, BYTE);
+}
+
+
+// Send a Midi SYNC message (SYNC is always for all channels)
+void Midi::sendSync(void)
+{
+    serial_.print(STATUS_SYNC, BYTE);
+}
+
+
+// Send a Midi START message (START is always for all channels)
+void Midi::sendStart(void)
+{
+    serial_.print(STATUS_START, BYTE);
+}
+
+
+// Send a Midi CONTINUE message (CONTINUE is always for all channels)
+void Midi::sendContinue(void)
+{
+    serial_.print(STATUS_CONTINUE, BYTE);
+}
+
+
+// Send a Midi STOP message (STOP is always for all channels)
+void Midi::sendStop(void)
+{
+    serial_.print(STATUS_STOP, BYTE);
+}
+
+
+// Send a Midi ACTIVE SENSE message (ACTIVE SENSE is always for all channels)
+void Midi::sendActiveSense(void)
+{
+    serial_.print(STATUS_ACTIVE_SENSE, BYTE);
+}
+
+
+// Send a Midi RESET message (RESET is always for all channels)
+void Midi::sendReset(void)
+{
+    serial_.print(STATUS_RESET, BYTE);
+}
+
+
+// Constructor -- set up defaults for variables, get ready for use (but don't
+//  take over serial port yet)
+Midi::Midi(HardwareSerial &serial) : serial_(serial)
+{
+    /* Not in proprietary stream */
+    recvMode_ = 0;
+    /* No bytes recevied */
+    recvByteCount_ = 0;
+    /* Not processing an event */
+    recvEvent_ = 0;
+    /* No arguments to the event we haven't received */
+    recvArg0_ = 0;
+    /* Not waiting for bytes to complete a message */
+    recvBytesNeeded_ = 0;
+    // There was no last event.
+    lastStatusSent_ = false;
+    // Don't send the extra bytes; just send deltas
+    sendFullCommands_ = false;
+
+    /* Listening to all channels */
+    channelIn_ = 0;
+}
+
+
+// Open the serial port and begin processing.
+void Midi::begin(unsigned int channel, unsigned long baud)
+{
+  channelIn_ = channel; 
+  serial_.begin(baud);
+}
+
+
+// Set (package-specific) parameters for the Midi instance
+void Midi::setParam(unsigned int param, unsigned int val)
+{
+    if (param == PARAM_SEND_FULL_COMMANDS) {
+        if (val) {
+            sendFullCommands_ = true;
+        } else {
+            sendFullCommands_ = false;
+        }
+    } else if (param == PARAM_CHANNEL_IN) {
+        channelIn_ = val;
+    }
+}
+
+
+// Get (package-specific) parameters for the Midi instance
+unsigned int Midi::getParam(unsigned int param)
+{
+    if (param == PARAM_SEND_FULL_COMMANDS) {
+        return sendFullCommands_;
+    } else if (param == PARAM_CHANNEL_IN) {
+        return channelIn_;
+    }
+    
+    return 0;
+}
+
+
+// Placeholders.  You should subclass the Midi base class and define these to have your 
+//  version called.
+void Midi::handleNoteOff(unsigned int channel, unsigned int note, unsigned int velocity) {}
+void Midi::handleNoteOn(unsigned int channel, unsigned int note, unsigned int velocity) {}
+void Midi::handleVelocityChange(unsigned int channel, unsigned int note, unsigned int velocity) {}
+void Midi::handleControlChange(unsigned int channel, unsigned int controller, unsigned int value) {}
+void Midi::handleProgramChange(unsigned int channel, unsigned int program) {}
+void Midi::handleAfterTouch(unsigned int channel, unsigned int velocity) {}
+void Midi::handlePitchChange(unsigned int pitch) {}
+void Midi::handleSongPosition(unsigned int position) {}
+void Midi::handleSongSelect(unsigned int song) {}
+void Midi::handleTuneRequest(void) {}
+void Midi::handleSync(void) {}
+void Midi::handleStart(void) {}
+void Midi::handleContinue(void) {}
+void Midi::handleStop(void) {}
+void Midi::handleActiveSense(void) {}
+void Midi::handleReset(void) {}
diff --git a/Midi.h b/Midi.h
new file mode 100644
index 0000000..5459e7e
--- /dev/null
+++ b/Midi.h
@@ -0,0 +1,191 @@
+/*
+ *  Midi.h: Header for MIDI processing library, Arduino version
+ *
+ *             (c) 2003-2008 Tymm Twillman <tymm@booyaka.com>
+ *
+ *  This file is part of Tymm's Arduino Midi Library.
+ *
+ *  Tymm's Arduino Midi Library is free software: you can redistribute it
+ *  and/or modify it under the terms of the GNU Lesser General Public 
+ *  License as published by the Free Software Foundation, either version 2.1
+ *  of the License, or (at your option) any later version.
+ *
+ *  Tymm's Arduino Midi Library is distributed in the hope that it will be
+ *  useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with Tymm's Arduino Midi Library.  If not, see
+ *  <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MIDI_H
+#define MIDI_H
+
+#include "HardwareSerial.h"
+
+
+/*
+ * This is the Midi class.  If you are just sending Midi data, you only need to make an
+ *  instance of the class, passing it your serial port -- in most cases it looks like
+ *
+ *   Midi midi(Serial);
+ *
+ *  then you don't need to do anything else; you can start using it to send Midi messages,
+ *  e.g.
+ *
+ *   midi.sendNoteOn(1, note, velocity);
+ *
+ * If you are using it to receive Midi data, it's a little more complex & you will need
+ *  to subclass the Midi class.
+ *
+ *  For people not used to C++ this may look confusing, but it's actually pretty easy.
+ *   Note that you only need to write the functions for event types you want to handle.
+ *   They should match the names & prototypes of the functions in the class; look at
+ *   the functions in the Midi class below that have the keyword "virtual" to see which
+ *   ones you can use.
+ *
+ *   Here's an example of one that takes NOTE ON, NOTE OFF, and CONTROL CHANGE:
+ *
+ *   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)
+ *     {
+ *         if (note == 40) {digitalWrite(13, HIGH); }
+ *     }
+ *
+ *     void handleNoteOff(unsigned int channel, unsigned int note, unsigned int velocity)
+ *     {
+ *       if (note == 40) { digitalWrite(13, LOW); }
+ *     }
+ *
+ *     void handleControlChange(unsigned int channel, unsigned int controller,
+ *                              unsigned int value)
+ *     {
+ *       analogWrite(6, value * 2);
+ *     }
+ *
+ *   Then you need to make an instance of this class:
+ *
+ *     MyMidi midi(Serial);
+ *
+ *   If receiving Midi data, you also need to call the poll function every time through
+ *    loop(); e.g.
+ *
+ *    void loop() {
+ *      midi.poll();
+ *    }
+ *
+ *   This causes the Midi class to read data from the serial port and process it.
+ */
+ 
+class Midi {
+private:
+    // The serial port used by this Midi instance (it takes complete control over the port)
+    HardwareSerial serial_;
+    
+    /* Private Receive Parameters */
+
+    // The channel this Midi instance receives data for (0 means all channels)
+    int channelIn_;
+
+    // These are for keeping track of partial Midi messages as bytes come in
+    int recvMode_;
+    int recvByteCount_;
+    int recvEvent_;
+    int recvArg0_;
+    int recvBytesNeeded_;
+    int lastStatusSent_;
+
+    /* Private Send Parameters */
+    
+    // This controls whether every Midi message gets a command byte sent with it
+    //  (Midi can just send a single command byte and then stream events without
+    //  sending the command each time)
+    bool sendFullCommands_;
+
+    /* Internal functions */
+    
+    // Called whenever data is read from the serial port
+    void recvByte(int byte);
+    
+    // This doesn't work -- by making it private, we ensure nobody ever calls it
+    Midi();
+    
+public:
+    // Set this parameter to anything other than 0 to cause every MIDI update to
+    //  include a copy of the current event (e.g. for every note off to include
+    //  the NOTE OFF event) -- by default, if an event is the same type of event as
+    //  the last one sent, the event byte isn't sent; just the new note/velocity
+    static const unsigned int PARAM_SEND_FULL_COMMANDS = 0x1000;
+    
+    // Use this parameter to update the channel the MIDI code is looking for messages
+    //  to.  0 means "all channels".
+    static const unsigned int PARAM_CHANNEL_IN         = 0x1001;
+    
+    
+    // Constructor -- generally just use e.g. "Midi midi(Serial);"
+    Midi(HardwareSerial &serial);
+    
+    // Call to start the serial port, at given baud.  For many applications
+    //  the default parameters are just fine (which will cause messages for all
+    //  MIDI channels to be delivered)
+    void begin(unsigned int channel = 0, unsigned long baud = 31250);
+    
+    
+    // Changes the updateable parameters (params are Midi::PARAM_SEND_FULL_COMMANDS or 
+    //  Midi::PARAM_CHANNEL_IN -- see above for what they mean)
+    void setParam(unsigned int param, unsigned int val);
+    
+    // Get current values for the user updateable parameters (params, etc same as above)
+    unsigned int getParam(unsigned int param);
+    
+    
+    // poll() should be called every time through loop() IF dealing with incoming MIDI
+    //  (if you're only SENDING MIDI events from the Arduino, you don't need to call
+    //  poll); it causes data to be read from the serial port and processed.
+    void poll();
+
+    // Call these to send MIDI messages of the given types
+    void sendNoteOff(unsigned int channel, unsigned int note, unsigned int velocity);
+    void sendNoteOn(unsigned int channel, unsigned int note, unsigned int velocity);
+    void sendVelocityChange(unsigned int channel, unsigned int note, unsigned int velocity);
+    void sendControlChange(unsigned int channel, unsigned int controller, unsigned int value);
+    void sendProgramChange(unsigned int channel, unsigned int program);
+    void sendAfterTouch(unsigned int channel, unsigned int velocity);
+    void sendPitchChange(unsigned int pitch);
+    void sendSongPosition(unsigned int position);
+    void sendSongSelect(unsigned int song);
+    void sendTuneRequest(void);
+    void sendSync(void);
+    void sendStart(void);
+    void sendContinue(void);
+    void sendStop(void);
+    void sendActiveSense(void);
+    void sendReset(void);
+    
+    // Overload these in a subclass to get MIDI messages when they come in
+    virtual void handleNoteOff(unsigned int channel, unsigned int note, unsigned int velocity);
+    virtual void handleNoteOn(unsigned int channel, unsigned int note, unsigned int velocity);
+    virtual void handleVelocityChange(unsigned int channel, unsigned int note, unsigned int velocity);
+    virtual void handleControlChange(unsigned int channel, unsigned int controller, unsigned int value);
+    virtual void handleProgramChange(unsigned int channel, unsigned int program);
+    virtual void handleAfterTouch(unsigned int channel, unsigned int velocity);
+    virtual void handlePitchChange(unsigned int pitch);
+    virtual void handleSongPosition(unsigned int position);
+    virtual void handleSongSelect(unsigned int song);
+    virtual void handleTuneRequest(void);
+    virtual void handleSync(void);
+    virtual void handleStart(void);
+    virtual void handleContinue(void);
+    virtual void handleStop(void);
+    virtual void handleActiveSense(void);
+    virtual void handleReset(void);
+};
+
+#endif /* #ifndef MIDI_H ... */
diff --git a/examples/MidiPneumaticsExample/MidiPneumaticsExample.pde b/examples/MidiPneumaticsExample/MidiPneumaticsExample.pde
new file mode 100644
index 0000000..33ff588
--- /dev/null
+++ b/examples/MidiPneumaticsExample/MidiPneumaticsExample.pde
@@ -0,0 +1,134 @@
+/*
+ * This sketch was for a project controlling pneumatics via Midi -- I used 4
+ *  daisychained TPIC6B595 shift registers to control 32 pneumatic solenoids
+ *  requiring 24v control signals.  In my setup I used Garage Band as the
+ *  sequencer (since it was already on my machine), with midiO plugin,
+ *  sending Midi to Max/MSP, where I connected a Midi In object to a serial
+ *  object that sent the data to my Arduino.
+ *
+ * A little complicated, but it worked reasonably well.
+ */
+
+#include "Midi.h"
+
+
+// Pins used to communicate with the TPIC6B595 shiftg registers
+#define D_PIN     2 
+#define RCK_PIN   3
+#define SRCK_PIN  4
+#define SRCLR_PIN 5
+#define EN_PIN    6
+
+// Number of shift registers in the chain
+#define NUM_TPIC6B595 4
+
+
+// Subclassing Midi class to override the note handling functions
+class MyMidi : public Midi {
+  public:
+  
+  MyMidi(HardwareSerial &s) : Midi(s) {}
+  
+  void handleNoteOn(unsigned int channel, unsigned int note, unsigned int velocity)
+  {
+    // indicator bit to show note on received
+    digitalWrite(13, HIGH);
+    
+    // set the pin corresponding to the note high (open the valve); the 
+    //  note & 31 bit is to limit the pin # from 0-31 since otherwise
+    //  with a high note we could end up writing memory that's outside
+    //  the array
+    tpic6b595_set((note & 31), HIGH);
+    tpic6b595_load();
+  }
+
+  void handleNoteOff(unsigned int channel, unsigned int note, unsigned int velocity)
+  {
+    // This is pretty much the same as handleNoteOn, except it turns things off
+    //  instead of on.
+    
+    digitalWrite(13, LOW);
+    tpic6b595_set((note & 31), LOW);
+    tpic6b595_load();
+  }
+};
+
+
+// Since the shift registers are read-only, need to keep a copy of the current
+//  state of each output locally
+unsigned char tpic6b595_vals[NUM_TPIC6B595];
+
+// Create the actual instance of our Midi class; attach it to the standard
+//  serial port.
+MyMidi midi(Serial);
+
+
+// Function for initializing the pins for communicating with the TPIC6B595's
+void tpic6b595_init()
+{
+  
+  pinMode(D_PIN, OUTPUT);
+  pinMode(RCK_PIN, OUTPUT);
+  pinMode(SRCK_PIN, OUTPUT);
+  pinMode(SRCLR_PIN, OUTPUT);
+  pinMode(EN_PIN, OUTPUT);
+  
+  digitalWrite(RCK_PIN, LOW);
+  digitalWrite(SRCK_PIN, LOW);
+  digitalWrite(SRCLR_PIN, LOW);
+  digitalWrite(SRCLR_PIN, HIGH);
+  digitalWrite(EN_PIN, LOW);
+}
+
+
+// Load the current state of the TPIC6B595 values into the shift registers &
+//  latch the new values
+void tpic6b595_load()
+{
+  for (int i = 0; i < NUM_TPIC6B595; i++) {
+   shiftOut(D_PIN, SRCK_PIN, MSBFIRST, tpic6b595_vals[(NUM_TPIC6B595 - 1) - i]);
+  }
+  
+  digitalWrite(RCK_PIN, HIGH);
+  delayMicroseconds(10);
+  digitalWrite(RCK_PIN, LOW);
+}
+
+
+// Get the state of any of the TPIC6B595 pins (first chip is considered to 
+//  be pins 0-7, chip 2 pins 8-15, etc.
+unsigned char tpic6b595_get(unsigned char pin)
+{
+  return (tpic6b595_vals[pin / 8] & _BV(pin & 7));
+}
+
+
+// Set the state of any of the TPIC6B595 pins (again, first chip is pins 0-7,
+//  chip 2 pins 8-15, etc.
+void tpic6b595_set(unsigned char pin, unsigned char val)
+{
+  if (val) {
+    tpic6b595_vals[pin / 8] |= _BV(pin & 7);
+  } else {
+    tpic6b595_vals[pin / 8] &= ~_BV(pin & 7);
+  }
+}
+
+
+// Set pin 13 to output for some indication of data being received, initialize the
+//  shift registers, start the Midi instance and turn off all shift register outputs
+void setup()
+{
+  pinMode(13, OUTPUT);
+  tpic6b595_init();
+  midi.begin(0, 115200);
+  
+  tpic6b595_load();
+}
+
+
+// All we gotta do is process Midi data... 
+void loop()
+{
+  midi.poll();
+}
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();
+}
diff --git a/examples/MidiSendExample/MidiSendExample.pde b/examples/MidiSendExample/MidiSendExample.pde
new file mode 100644
index 0000000..cc1eff9
--- /dev/null
+++ b/examples/MidiSendExample/MidiSendExample.pde
@@ -0,0 +1,108 @@
+// This sketch is for building a simple MIDI controller with 2 buttons for
+//  sending note values & 2 knobs for control values
+//
+// To get this working, you should have set up the following hardware:
+//  - a switch from Digital Pin 2 to +5v, and a 1 to 10K resistor from 
+//      pin 2 to ground
+//  - a switch from Digital Pin 3 to +5v, and a 1 to 10K resistor from
+//      pin 3 to ground
+//  - a potentiometer with one side at +5v, one side at ground, and the
+//      wiper (center pin) connected to Analog Pin 0
+//  - a potentiometer with one side at +5v, one side at ground, and the
+//      wiper (center pin) connected to Analog Pin 1
+//
+
+#include "Midi.h"
+
+// Create an instance of the Midi class.
+//
+// If we were had to receive messages, you'd have to make a subclass of the
+//  Midi class.  See the MidiReceiveExample for an example of how to do that.
+//
+// Sending is a lot easier :)
+Midi midi(Serial);
+
+
+void setup()
+{
+  // Configure digital pins for input.
+  pinMode(2, INPUT);
+  pinMode(3, INPUT);
+  
+  // 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.
+  midi.begin(0);
+}
+
+int lastDigital2 = LOW;
+int lastDigital3 = LOW;
+
+int lastAnalog0 = 0;
+int lastAnalog1 = 0;
+
+// MIDI channel to send messages to
+int channelOut = 1;
+
+
+void doControls()
+{
+  int a;
+
+
+  // Changes on analog lines cause control change events
+  //  to be sent; these are parameters from 0-127
+  
+  a = analogRead(0) / 8 ;
+  if (a != lastAnalog0) {
+    midi.sendControlChange(channelOut, 15, a);
+    lastAnalog0 = a;
+  }
+
+  a = analogRead(1) / 8;
+  if (a != lastAnalog1) {
+    midi.sendControlChange(channelOut, 16, a);
+    lastAnalog1 = a;
+  }
+}
+
+
+void doKeys()
+{
+  int d;
+  
+  
+  // Basic code to check pins 2-5; if there's a change on the pin, send
+  //  a NOTE ON or NOTE OFF, depending on whether the button was pressed
+  //  or released, with a different note value for each button.  The velocity
+  //  for all of the NOTE ON messages is the max (127)
+
+  d = digitalRead(2);
+  if (d != lastDigital2) {
+    if (d == HIGH) {
+      midi.sendNoteOn(channelOut, 40, 127);
+    } else {
+      midi.sendNoteOff(channelOut, 40, 0);
+    }
+    lastDigital2 = d;
+  }
+  
+  d = digitalRead(3);
+  if (d != lastDigital3) {
+    if (d == HIGH) {
+      midi.sendNoteOn(channelOut, 41, 127);
+    } else {
+      midi.sendNoteOff(channelOut, 41, 0);
+    }
+    lastDigital3 = d;
+  }
+}
+
+
+void loop()
+{
+  // DON'T need to call midi.poll(), because this sketch doesn't need to
+  //  receive any Midi data.
+  doKeys();
+  doControls();
+}