Moving things around - creating the hardware directory and sticking all the avr code, etc. in there.

36 files changed, 3802 insertions, 0 deletions

diff --git a/core/libraries/EEPROM/EEPROM.cpp b/core/libraries/EEPROM/EEPROM.cpp
new file mode 100755
index 0000000..3a361e7
--- /dev/null
+++ b/core/libraries/EEPROM/EEPROM.cpp
@@ -0,0 +1,50 @@
+/*
+  EEPROM.cpp - EEPROM library
+  Copyright (c) 2006 David A. Mellis.  All right reserved.
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+/******************************************************************************
+ * Includes
+ ******************************************************************************/
+
+#include <avr/eeprom.h>
+#include "WConstants.h"
+#include "EEPROM.h"
+
+/******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+/******************************************************************************
+ * Constructors
+ ******************************************************************************/
+
+/******************************************************************************
+ * User API
+ ******************************************************************************/
+
+uint8_t EEPROMClass::read(int address)
+{
+	return eeprom_read_byte((unsigned char *) address);
+}
+
+void EEPROMClass::write(int address, uint8_t value)
+{
+	eeprom_write_byte((unsigned char *) address, value);
+}
+
+EEPROMClass EEPROM;
diff --git a/core/libraries/EEPROM/EEPROM.h b/core/libraries/EEPROM/EEPROM.h
new file mode 100755
index 0000000..aa2b577
--- /dev/null
+++ b/core/libraries/EEPROM/EEPROM.h
@@ -0,0 +1,35 @@
+/*
+  EEPROM.h - EEPROM library
+  Copyright (c) 2006 David A. Mellis.  All right reserved.
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef EEPROM_h
+#define EEPROM_h
+
+#include <inttypes.h>
+
+class EEPROMClass
+{
+  public:
+    uint8_t read(int);
+    void write(int, uint8_t);
+};
+
+extern EEPROMClass EEPROM;
+
+#endif
+
diff --git a/core/libraries/EEPROM/examples/eeprom_clear/eeprom_clear.pde b/core/libraries/EEPROM/examples/eeprom_clear/eeprom_clear.pde
new file mode 100644
index 0000000..36af68e
--- /dev/null
+++ b/core/libraries/EEPROM/examples/eeprom_clear/eeprom_clear.pde
@@ -0,0 +1,21 @@
+/*
+ * EEPROM Clear
+ *
+ * Sets all of the bytes of the EEPROM to 0.
+ */
+
+#include <EEPROM.h>
+
+void setup()
+{
+  // write a 0 to all 512 bytes of the EEPROM
+  for (int i = 0; i < 512; i++)
+    EEPROM.write(i, 0);
+    
+  // turn the LED on when we're done
+  digitalWrite(13, HIGH);
+}
+
+void loop()
+{
+}
diff --git a/core/libraries/EEPROM/examples/eeprom_read/eeprom_read.pde b/core/libraries/EEPROM/examples/eeprom_read/eeprom_read.pde
new file mode 100644
index 0000000..2e30708
--- /dev/null
+++ b/core/libraries/EEPROM/examples/eeprom_read/eeprom_read.pde
@@ -0,0 +1,38 @@
+/*
+ * EEPROM Read
+ *
+ * Reads the value of each byte of the EEPROM and prints it 
+ * to the computer.
+ */
+
+#include <EEPROM.h>
+
+// start reading from the first byte (address 0) of the EEPROM
+int address = 0;
+byte value;
+
+void setup()
+{
+  Serial.begin(9600);
+}
+
+void loop()
+{
+  // read a byte from the current address of the EEPROM
+  value = EEPROM.read(address);
+  
+  Serial.print(address);
+  Serial.print("\t");
+  Serial.print(value, DEC);
+  Serial.println();
+  
+  // advance to the next address of the EEPROM
+  address = address + 1;
+  
+  // there are only 512 bytes of EEPROM, from 0 to 511, so if we're
+  // on address 512, wrap around to address 0
+  if (address == 512)
+    address = 0;
+    
+  delay(500);
+}
diff --git a/core/libraries/EEPROM/examples/eeprom_write/eeprom_write.pde b/core/libraries/EEPROM/examples/eeprom_write/eeprom_write.pde
new file mode 100644
index 0000000..ae7c57e
--- /dev/null
+++ b/core/libraries/EEPROM/examples/eeprom_write/eeprom_write.pde
@@ -0,0 +1,38 @@
+/*
+ * EEPROM Write
+ *
+ * Stores values read from analog input 0 into the EEPROM.
+ * These values will stay in the EEPROM when the board is
+ * turned off and may be retrieved later by another sketch.
+ */
+
+#include <EEPROM.h>
+
+// the current address in the EEPROM (i.e. which byte
+// we're going to write to next)
+int addr = 0;
+
+void setup()
+{
+}
+
+void loop()
+{
+  // need to divide by 4 because analog inputs range from
+  // 0 to 1023 and each byte of the EEPROM can only hold a
+  // value from 0 to 255.
+  int val = analogRead(0) / 4;
+  
+  // write the value to the appropriate byte of the EEPROM.
+  // these values will remain there when the board is
+  // turned off.
+  EEPROM.write(addr, val);
+  
+  // advance to the next address.  there are 512 bytes in 
+  // the EEPROM, so go back to 0 when we hit 512.
+  addr = addr + 1;
+  if (addr == 512)
+    addr = 0;
+  
+  delay(100);
+}
diff --git a/core/libraries/EEPROM/keywords.txt b/core/libraries/EEPROM/keywords.txt
new file mode 100644
index 0000000..d3218fe
--- /dev/null
+++ b/core/libraries/EEPROM/keywords.txt
@@ -0,0 +1,18 @@
+#######################################
+# Syntax Coloring Map For Ultrasound
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+EEPROM	KEYWORD1
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+#######################################
+# Constants (LITERAL1)
+#######################################
+
diff --git a/core/libraries/Firmata/Firmata.cpp b/core/libraries/Firmata/Firmata.cpp
new file mode 100644
index 0000000..de58a41
--- /dev/null
+++ b/core/libraries/Firmata/Firmata.cpp
@@ -0,0 +1,128 @@
+/*
+  Firmata.cpp - Firmata library
+  Copyright (c) 2007 Free Software Foundation.  All right reserved.
+  Written by Hans-Christoph Steiner <hans@at.or.at>
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+//******************************************************************************
+//* Includes
+//******************************************************************************
+
+extern "C" {
+  // AVR LibC Includes
+  #include <inttypes.h>
+  #include <stdlib.h>
+
+  // Wiring Core Includes
+  #include "WConstants.h"
+}
+
+#include "Firmata.h"
+#include "EEPROM.h"
+#include "HardwareSerial.h"
+
+//******************************************************************************
+//* Definitions
+//******************************************************************************
+
+//******************************************************************************
+//* Constructors
+//******************************************************************************
+
+FirmataClass::FirmataClass()
+{
+	// TODO: init serial here
+	// TODO: printVersion
+}
+
+//******************************************************************************
+//* Private Methods
+//******************************************************************************
+// resets the system state upon a SYSTEM_RESET message from the host software
+void FirmataClass::systemReset(void)
+{
+	// TODO automatically call this in response to SYSTEM_RESET
+	// TODO reset EEPROM to 0 here
+}
+
+//******************************************************************************
+//* Public Methods
+//******************************************************************************
+
+// output type of message that is next on the queue
+int FirmataClass::available(void)
+{
+	// TODO output next available message type, or -1 if nothing
+}
+
+
+// output the protocol version message to the serial port
+void FirmataClass::printVersion() {
+  Serial.print(REPORT_VERSION, BYTE);
+  Serial.print(FIRMATA_MINOR_VERSION, BYTE);
+  Serial.print(FIRMATA_MAJOR_VERSION, BYTE);
+}
+
+// send an analog message
+void FirmataClass::sendAnalog(int pin, int value) 
+{
+	// pin can only be 0-15, so chop higher bits
+	Serial.print(ANALOG_MESSAGE | (pin & 0xF), BYTE);
+	Serial.print(value % 128, BYTE);
+	Serial.print(value >> 7, BYTE); 
+}
+
+// send a single digital pin in a digital message
+void FirmataClass::sendDigital(int pin, int value) 
+{
+	// TODO add single pin digital messages to the  protocol
+}
+
+// send 14-bits in a single digital message
+void FirmataClass::sendDigitalPortPair(int port, int value) 
+{
+	// TODO: the digital message should not be sent on the serial port every
+	// time sendDigital() is called.  Instead, it should add it to an int
+	// which will be sent on a schedule.  If a pin changes more than once
+	// before the digital message is sent on the serial port, it should send a
+	// digital message for each change.
+ 
+	// TODO: some math needs to happen for pin > 14 since MIDI channels are used
+	Serial.print(DIGITAL_MESSAGE | (port & 0xF),BYTE);
+	Serial.print(value % 128, BYTE); // Tx pins 0-6
+	Serial.print(value >> 7, BYTE);  // Tx pins 7-13
+}
+
+// Internal Actions/////////////////////////////////////////////////////////////
+
+void FirmataClass::loadState(void)
+{
+	// TODO load state from EEPROM
+}
+
+void FirmataClass::saveState(void)
+{
+	// TODO save state to EEPROM
+}
+
+void FirmataClass::resetState(void)
+{
+	// TODO reset state bytes in EEPROM
+}
+
+// make one instance for the user to use
+FirmataClass Firmata;
diff --git a/core/libraries/Firmata/Firmata.h b/core/libraries/Firmata/Firmata.h
new file mode 100644
index 0000000..1c6604b
--- /dev/null
+++ b/core/libraries/Firmata/Firmata.h
@@ -0,0 +1,95 @@
+/*
+  Firmata.h - Firmata library
+  Copyright (c) 2007 Free Software Foundation.  All right reserved.
+  Written by Hans-Christoph Steiner <hans@at.or.at>
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef Firmata_h
+#define Firmata_h
+
+#include <inttypes.h>
+
+class FirmataClass
+{
+private:
+	void systemReset(void);
+public:
+	FirmataClass();
+	int available(void);
+	// serial receive actions
+	// send serial messages
+	void printVersion(void);
+	void sendAnalog(int, int);
+	void sendDigital(int, int);
+	void sendDigitalPortPair(int, int);
+	// internal actions
+	void loadState(void);
+	void saveState(void);
+	void resetState(void);
+};
+
+extern FirmataClass Firmata;
+
+/*==============================================================================
+ * MACROS
+ *============================================================================*/
+
+/* Version numbers for the protocol.  The protocol is still changing, so these
+ * version numbers are important.  This number can be queried so that host
+ * software can test whether it will be compatible with the currently
+ * installed firmware. */
+#define FIRMATA_MAJOR_VERSION   1 // for non-compatible changes
+#define FIRMATA_MINOR_VERSION   0 // for backwards compatible changes
+
+// total number of pins currently supported
+#define TOTAL_ANALOG_PINS       6
+#define TOTAL_DIGITAL_PINS      14
+
+// for comparing along with INPUT and OUTPUT
+#define PWM                     2
+
+// for selecting digital inputs
+#define PB  2  // digital input, pins 8-13
+#define PC  3  // analog input port
+#define PD  4  // digital input, pins 0-7
+
+#define MAX_DATA_BYTES 2 // max number of data bytes in non-SysEx messages
+// message command bytes
+#define DIGITAL_MESSAGE         0x90 // send data for a digital pin
+#define ANALOG_MESSAGE          0xE0 // send data for an analog pin (or PWM)
+//#define PULSE_MESSAGE           0xA0 // proposed pulseIn/Out message (SysEx)
+//#define SHIFTOUT_MESSAGE        0xB0 // proposed shiftOut message (SysEx)
+#define REPORT_ANALOG_PIN       0xC0 // enable analog input by pin #
+#define REPORT_DIGITAL_PORTS    0xD0 // enable digital input by port pair
+#define START_SYSEX             0xF0 // start a MIDI SysEx message
+#define SET_DIGITAL_PIN_MODE    0xF4 // set a digital pin to INPUT or OUTPUT 
+#define END_SYSEX               0xF7 // end a MIDI SysEx message
+#define REPORT_VERSION          0xF9 // report firmware version
+#define SYSTEM_RESET            0xFF // reset from MIDI
+
+// these are used for EEPROM reading and writing
+#define ANALOGINPUTSTOREPORT_LOW_BYTE   0x1F0 // analogInputsToReport is an int
+#define ANALOGINPUTSTOREPORT_HIGH_BYTE  0x1F1 // analogInputsToReport is an int
+#define REPORTDIGITALINPUTS_BYTE        0x1F2 // 
+#define DIGITALPINSTATUS_LOW_BYTE       0x1F3 // digitalPinStatus is an int
+#define DIGITALPINSTATUS_HIGH_BYTE      0x1F4 // digitalPinStatus is an int
+#define PWMSTATUS_LOW_BYTE              0x1F5 // pwmStatus is an int
+#define PWMSTATUS_HIGH_BYTE             0x1F6 // pwmStatus is an int
+
+
+#endif /* Firmata_h */
+
diff --git a/core/libraries/Firmata/keywords.txt b/core/libraries/Firmata/keywords.txt
new file mode 100644
index 0000000..a241593
--- /dev/null
+++ b/core/libraries/Firmata/keywords.txt
@@ -0,0 +1,18 @@
+#######################################
+# Syntax Coloring Map For Firmata
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+Firmata	KEYWORD1
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+#######################################
+# Constants (LITERAL1)
+#######################################
+
diff --git a/core/libraries/Matrix/Matrix.cpp b/core/libraries/Matrix/Matrix.cpp
new file mode 100755
index 0000000..c86c4c9
--- /dev/null
+++ b/core/libraries/Matrix/Matrix.cpp
@@ -0,0 +1,229 @@
+/*
+  Matrix.cpp - Max7219 LED Matrix library for Arduino & Wiring
+  Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+// TODO: Support segment displays in api?
+// TODO: Support varying vendor layouts?
+
+/******************************************************************************
+ * Includes
+ ******************************************************************************/
+
+extern "C" {
+  // AVR LibC Includes
+  #include <inttypes.h>
+  #include <stdlib.h>
+
+  // Wiring Core Includes
+  #undef abs
+  #include "WConstants.h"
+
+  // Wiring Core Prototypes
+  //void pinMode(uint8_t, uint8_t);
+  //void digitalWrite(int, uint8_t);
+}
+
+#include "Sprite.h"
+#include "Matrix.h"
+
+/******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+// Matrix registers
+#define REG_NOOP   0x00
+#define REG_DIGIT0 0x01
+#define REG_DIGIT1 0x02
+#define REG_DIGIT2 0x03
+#define REG_DIGIT3 0x04
+#define REG_DIGIT4 0x05
+#define REG_DIGIT5 0x06
+#define REG_DIGIT6 0x07
+#define REG_DIGIT7 0x08
+#define REG_DECODEMODE  0x09
+#define REG_INTENSITY   0x0A
+#define REG_SCANLIMIT   0x0B
+#define REG_SHUTDOWN    0x0C
+#define REG_DISPLAYTEST 0x0F
+
+/******************************************************************************
+ * Constructors
+ ******************************************************************************/
+
+Matrix::Matrix(uint8_t data, uint8_t clock, uint8_t load, uint8_t screens /* = 1 */)
+{
+  // record pins for sw spi
+  _pinData = data;
+  _pinClock = clock;
+  _pinLoad = load;
+
+  // set ddr for sw spi pins
+  pinMode(_pinClock, OUTPUT);
+  pinMode(_pinData, OUTPUT);
+  pinMode(_pinLoad, OUTPUT);
+
+  // allocate screenbuffers
+  _screens = screens;
+  _buffer = (uint8_t*)calloc(_screens, 64);
+  _maximumX = (_screens * 8);
+
+  // initialize registers
+  clear();             // clear display
+  setScanLimit(0x07);  // use all rows/digits
+  setBrightness(0x0F); // maximum brightness
+  setRegister(REG_SHUTDOWN, 0x01);    // normal operation
+  setRegister(REG_DECODEMODE, 0x00);  // pixels not integers
+  setRegister(REG_DISPLAYTEST, 0x00); // not in test mode
+}
+
+/******************************************************************************
+ * MAX7219 SPI
+ ******************************************************************************/
+
+// sends a single byte by sw spi (no latching)
+void Matrix::putByte(uint8_t data)
+{
+  uint8_t i = 8;
+  uint8_t mask;
+  while(i > 0) {
+    mask = 0x01 << (i - 1);         // get bitmask
+    digitalWrite(_pinClock, LOW);   // tick
+    if (data & mask){               // choose bit
+      digitalWrite(_pinData, HIGH); // set 1
+    }else{
+      digitalWrite(_pinData, LOW);  // set 0
+    }
+    digitalWrite(_pinClock, HIGH);  // tock
+    --i;                            // move to lesser bit
+  }
+}
+
+// sets register to a byte value for all screens
+void Matrix::setRegister(uint8_t reg, uint8_t data)
+{
+  digitalWrite(_pinLoad, HIGH); // begin
+  for(uint8_t i = 0; i < _screens; ++i){
+    putByte(reg);  // specify register
+    putByte(data); // send data
+  }
+  digitalWrite(_pinLoad, LOW);  // latch in data
+  digitalWrite(_pinLoad, HIGH); // end
+}
+
+// syncs row of display with buffer
+void Matrix::syncRow(uint8_t row)
+{
+  if (!_buffer) return;
+  
+  // uint8_t's can't be negative, so don't test for negative row
+  if (row >= 8) return;
+  digitalWrite(_pinLoad, HIGH); // begin
+  for(uint8_t i = 0; i < _screens; ++i){
+    putByte(8 - row);                // specify register
+    putByte(_buffer[row + (8 * i)]); // send data
+  }
+  digitalWrite(_pinLoad, LOW);  // latch in data
+  digitalWrite(_pinLoad, HIGH); // end
+}
+
+/******************************************************************************
+ * MAX7219 Configuration
+ ******************************************************************************/
+
+// sets how many digits are displayed
+void Matrix::setScanLimit(uint8_t value)
+{
+  setRegister(REG_SCANLIMIT, value & 0x07);
+}
+
+// sets brightness of the display
+void Matrix::setBrightness(uint8_t value)
+{
+  setRegister(REG_INTENSITY, value & 0x0F);
+}
+
+/******************************************************************************
+ * Helper Functions
+ ******************************************************************************/
+
+void Matrix::buffer(uint8_t x, uint8_t y, uint8_t value)
+{
+  if (!_buffer) return;
+  
+  // uint8_t's can't be negative, so don't test for negative x and y.
+  if (x >= _maximumX || y >= 8) return;
+
+  uint8_t offset = x; // record x
+  x %= 8;             // make x relative to a single matrix
+  offset -= x;        // calculate buffer offset
+
+  // wrap shift relative x for nexus module layout
+  if (x == 0){
+    x = 8;
+  }
+  --x;
+
+  // record value in buffer
+  if(value){
+    _buffer[y + offset] |= 0x01 << x;
+  }else{
+    _buffer[y + offset] &= ~(0x01 << x);
+  }
+}
+
+/******************************************************************************
+ * User API
+ ******************************************************************************/
+
+// buffers and writes to screen
+void Matrix::write(uint8_t x, uint8_t y, uint8_t value)
+{
+  buffer(x, y, value);
+  
+  // update affected row
+  syncRow(y);
+}
+
+void Matrix::write(uint8_t x, uint8_t y, Sprite sprite)
+{
+  for (uint8_t i = 0; i < sprite.height(); i++){
+    for (uint8_t j = 0; j < sprite.width(); j++)
+      buffer(x + j, y + i, sprite.read(j, i));
+      
+    syncRow(y + i);
+  }
+}
+
+// clears screens and buffers
+void Matrix::clear(void)
+{
+  if (!_buffer) return;
+
+  // clear buffer
+  for(uint8_t i = 0; i < 8; ++i){
+    for(uint8_t j = 0; j < _screens; ++j){
+      _buffer[i + (8 * j)] = 0x00;
+    }
+  }
+
+  // clear registers
+  for(uint8_t i = 0; i < 8; ++i){
+    syncRow(i);
+  }
+}
+
diff --git a/core/libraries/Matrix/Matrix.h b/core/libraries/Matrix/Matrix.h
new file mode 100755
index 0000000..7c6be91
--- /dev/null
+++ b/core/libraries/Matrix/Matrix.h
@@ -0,0 +1,54 @@
+/*
+  Matrix.h - Max7219 LED Matrix library for Arduino & Wiring
+  Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef Matrix_h
+#define Matrix_h
+
+#include <inttypes.h>
+
+class Sprite;
+
+class Matrix
+{
+  private:
+    uint8_t _pinData;
+    uint8_t _pinClock;
+    uint8_t _pinLoad;
+
+    uint8_t* _buffer;
+    uint8_t _screens;
+    uint8_t _maximumX;
+
+    void putByte(uint8_t);
+    void setRegister(uint8_t, uint8_t);
+    void syncRow(uint8_t);
+
+    void setScanLimit(uint8_t);
+
+    void buffer(uint8_t, uint8_t, uint8_t);
+  public:
+    Matrix(uint8_t, uint8_t, uint8_t, uint8_t = 1);
+    void setBrightness(uint8_t);
+    void write(uint8_t, uint8_t, uint8_t);
+    void write(uint8_t, uint8_t, Sprite);
+    void clear(void);
+};
+
+#endif
+
diff --git a/core/libraries/Matrix/examples/hello_matrix/hello_matrix.pde b/core/libraries/Matrix/examples/hello_matrix/hello_matrix.pde
new file mode 100644
index 0000000..b8e1971
--- /dev/null
+++ b/core/libraries/Matrix/examples/hello_matrix/hello_matrix.pde
@@ -0,0 +1,39 @@
+// Hello Matrix
+// by Nicholas Zambetti <http://www.zambetti.com>
+
+// Demonstrates the use of the Matrix library
+// For MAX7219 LED Matrix Controllers
+// Blinks welcoming face on screen
+
+// Created 13 February 2006
+
+/* create a new Matrix instance
+   pin 0: data  (din)
+   pin 1: load  (load)
+   pin 2: clock (clk)
+*/
+Matrix myMatrix = Matrix(0, 2, 1);
+
+void setup()
+{
+}
+
+void loop()
+{
+  myMatrix.clear(); // clear display
+
+  delay(1000);
+
+  // turn some pixels on
+  myMatrix.write(1, 5, HIGH);
+  myMatrix.write(2, 2, HIGH);
+  myMatrix.write(2, 6, HIGH);
+  myMatrix.write(3, 6, HIGH);
+  myMatrix.write(4, 6, HIGH);
+  myMatrix.write(5, 2, HIGH);
+  myMatrix.write(5, 6, HIGH);
+  myMatrix.write(6, 5, HIGH);
+
+  delay(1000);
+}
+
diff --git a/core/libraries/Matrix/examples/sprite_animation/sprite_animation.pde b/core/libraries/Matrix/examples/sprite_animation/sprite_animation.pde
new file mode 100644
index 0000000..f6099fc
--- /dev/null
+++ b/core/libraries/Matrix/examples/sprite_animation/sprite_animation.pde
@@ -0,0 +1,45 @@
+// Sprite Animation
+// by Nicholas Zambetti <http://www.zambetti.com>
+
+// Demonstrates the use of the Matrix & Sprite libraries
+// Displays animated waveform graphic on screen
+
+// Created 29 March 2006
+
+/* create a new Matrix instance
+   pin 0: data  (din)
+   pin 1: load  (load)
+   pin 2: clock (clk)
+*/
+Matrix myMatrix = Matrix(0, 2, 1);
+
+/* create a new Sprite instance
+   8 pixels wide, 4 pixels tall
+*/
+Sprite wave = Sprite(
+  8, 4,
+  B00011000,
+  B00100100,
+  B01000010,
+  B10000001
+);
+
+void setup()
+{ 
+}
+
+int x = 0;
+
+void loop()
+{
+  myMatrix.write(x, 2, wave);     // place sprite on screen
+  myMatrix.write(x - 8, 2, wave); // place sprite again, elsewhere on screen
+  delay(75);                      // wait a little bit
+  myMatrix.clear();               // clear the screen for next animation frame
+  if(x == 8)                      // if reached end of animation sequence
+  {
+    x = 0;                        // start from beginning
+  }
+  x++;                            // advance x coordinate to the right
+}
+
diff --git a/core/libraries/Matrix/keywords.txt b/core/libraries/Matrix/keywords.txt
new file mode 100644
index 0000000..b784f87
--- /dev/null
+++ b/core/libraries/Matrix/keywords.txt
@@ -0,0 +1,22 @@
+#######################################
+# Syntax Coloring Map For Matrix
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+Matrix	KEYWORD1
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+setBrightness	KEYWORD2
+write	KEYWORD2
+clear	KEYWORD2
+
+#######################################
+# Constants (LITERAL1)
+#######################################
+
diff --git a/core/libraries/SoftwareSerial/SoftwareSerial.cpp b/core/libraries/SoftwareSerial/SoftwareSerial.cpp
new file mode 100755
index 0000000..6df04d2
--- /dev/null
+++ b/core/libraries/SoftwareSerial/SoftwareSerial.cpp
@@ -0,0 +1,227 @@
+/*
+  SoftwareSerial.cpp - Software serial library
+  Copyright (c) 2006 David A. Mellis.  All right reserved.
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+/******************************************************************************
+ * Includes
+ ******************************************************************************/
+
+#include "WConstants.h"
+#include "SoftwareSerial.h"
+
+/******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+/******************************************************************************
+ * Constructors
+ ******************************************************************************/
+
+SoftwareSerial::SoftwareSerial(uint8_t receivePin, uint8_t transmitPin)
+{
+  _receivePin = receivePin;
+  _transmitPin = transmitPin;
+  _baudRate = 0;
+}
+
+/******************************************************************************
+ * User API
+ ******************************************************************************/
+
+void SoftwareSerial::begin(long speed)
+{
+  _baudRate = speed;
+  _bitPeriod = 1000000 / _baudRate;
+
+  digitalWrite(_transmitPin, HIGH);
+  delayMicroseconds( _bitPeriod); // if we were low this establishes the end
+}
+
+int SoftwareSerial::read()
+{
+  int val = 0;
+  int bitDelay = _bitPeriod - clockCyclesToMicroseconds(50);
+  
+  // one byte of serial data (LSB first)
+  // ...--\    /--\/--\/--\/--\/--\/--\/--\/--\/--...
+  //	 \--/\--/\--/\--/\--/\--/\--/\--/\--/
+  //	start  0   1   2   3   4   5   6   7 stop
+
+  while (digitalRead(_receivePin));
+
+  // confirm that this is a real start bit, not line noise
+  if (digitalRead(_receivePin) == LOW) {
+    // frame start indicated by a falling edge and low start bit
+    // jump to the middle of the low start bit
+    delayMicroseconds(bitDelay / 2 - clockCyclesToMicroseconds(50));
+	
+    // offset of the bit in the byte: from 0 (LSB) to 7 (MSB)
+    for (int offset = 0; offset < 8; offset++) {
+	// jump to middle of next bit
+	delayMicroseconds(bitDelay);
+	
+	// read bit
+	val |= digitalRead(_receivePin) << offset;
+    }
+	
+    delayMicroseconds(_bitPeriod);
+    
+    return val;
+  }
+  
+  return -1;
+}
+
+void SoftwareSerial::print(uint8_t b)
+{
+  if (_baudRate == 0)
+    return;
+    
+  int bitDelay = _bitPeriod - clockCyclesToMicroseconds(50); // a digitalWrite is about 50 cycles
+  byte mask;
+
+  digitalWrite(_transmitPin, LOW);
+  delayMicroseconds(bitDelay);
+
+  for (mask = 0x01; mask; mask <<= 1) {
+    if (b & mask){ // choose bit
+      digitalWrite(_transmitPin,HIGH); // send 1
+    }
+    else{
+      digitalWrite(_transmitPin,LOW); // send 1
+    }
+    delayMicroseconds(bitDelay);
+  }
+
+  digitalWrite(_transmitPin, HIGH);
+  delayMicroseconds(bitDelay);
+}
+
+void SoftwareSerial::print(const char *s)
+{
+  while (*s)
+    print(*s++);
+}
+
+void SoftwareSerial::print(char c)
+{
+  print((uint8_t) c);
+}
+
+void SoftwareSerial::print(int n)
+{
+  print((long) n);
+}
+
+void SoftwareSerial::print(unsigned int n)
+{
+  print((unsigned long) n);
+}
+
+void SoftwareSerial::print(long n)
+{
+  if (n < 0) {
+    print('-');
+    n = -n;
+  }
+  printNumber(n, 10);
+}
+
+void SoftwareSerial::print(unsigned long n)
+{
+  printNumber(n, 10);
+}
+
+void SoftwareSerial::print(long n, int base)
+{
+  if (base == 0)
+    print((char) n);
+  else if (base == 10)
+    print(n);
+  else
+    printNumber(n, base);
+}
+
+void SoftwareSerial::println(void)
+{
+  print('\r');
+  print('\n');  
+}
+
+void SoftwareSerial::println(char c)
+{
+  print(c);
+  println();  
+}
+
+void SoftwareSerial::println(const char c[])
+{
+  print(c);
+  println();
+}
+
+void SoftwareSerial::println(uint8_t b)
+{
+  print(b);
+  println();
+}
+
+void SoftwareSerial::println(int n)
+{
+  print(n);
+  println();
+}
+
+void SoftwareSerial::println(long n)
+{
+  print(n);
+  println();  
+}
+
+void SoftwareSerial::println(unsigned long n)
+{
+  print(n);
+  println();  
+}
+
+void SoftwareSerial::println(long n, int base)
+{
+  print(n, base);
+  println();
+}
+
+// Private Methods /////////////////////////////////////////////////////////////
+
+void SoftwareSerial::printNumber(unsigned long n, uint8_t base)
+{
+  unsigned char buf[8 * sizeof(long)]; // Assumes 8-bit chars. 
+  unsigned long i = 0;
+
+  if (n == 0) {
+    print('0');
+    return;
+  } 
+
+  while (n > 0) {
+    buf[i++] = n % base;
+    n /= base;
+  }
+
+  for (; i > 0; i--)
+    print((char) (buf[i - 1] < 10 ? '0' + buf[i - 1] : 'A' + buf[i - 1] - 10));
+}
diff --git a/core/libraries/SoftwareSerial/SoftwareSerial.h b/core/libraries/SoftwareSerial/SoftwareSerial.h
new file mode 100755
index 0000000..95753fc
--- /dev/null
+++ b/core/libraries/SoftwareSerial/SoftwareSerial.h
@@ -0,0 +1,56 @@
+/*
+  SoftwareSerial.h - Software serial library
+  Copyright (c) 2006 David A. Mellis.  All right reserved.
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef SoftwareSerial_h
+#define SoftwareSerial_h
+
+#include <inttypes.h>
+
+class SoftwareSerial
+{
+  private:
+    uint8_t _receivePin;
+    uint8_t _transmitPin;
+    long _baudRate;
+    int _bitPeriod;
+    void printNumber(unsigned long, uint8_t);
+  public:
+    SoftwareSerial(uint8_t, uint8_t);
+    void begin(long);
+    int read();
+    void print(char);
+    void print(const char[]);
+    void print(uint8_t);
+    void print(int);
+    void print(unsigned int);
+    void print(long);
+    void print(unsigned long);
+    void print(long, int);
+    void println(void);
+    void println(char);
+    void println(const char[]);
+    void println(uint8_t);
+    void println(int);
+    void println(long);
+    void println(unsigned long);
+    void println(long, int);
+};
+
+#endif
+
diff --git a/core/libraries/SoftwareSerial/keywords.txt b/core/libraries/SoftwareSerial/keywords.txt
new file mode 100644
index 0000000..de5a74c
--- /dev/null
+++ b/core/libraries/SoftwareSerial/keywords.txt
@@ -0,0 +1,18 @@
+#######################################
+# Syntax Coloring Map For Ultrasound
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+SoftwareSerial	KEYWORD1
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+#######################################
+# Constants (LITERAL1)
+#######################################
+
diff --git a/core/libraries/Sprite/Sprite.cpp b/core/libraries/Sprite/Sprite.cpp
new file mode 100644
index 0000000..6055876
--- /dev/null
+++ b/core/libraries/Sprite/Sprite.cpp
@@ -0,0 +1,95 @@
+/*
+  Sprite.cpp - 2D sprite buffer library for Arduino & Wiring
+  Copyright (c) 2006 David A. Mellis.  All right reserved.
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include <stdlib.h>
+#include <stdarg.h>
+//#include <stdio.h>
+
+#include "Sprite.h"
+
+void Sprite::init(uint8_t width, uint8_t height)
+{
+  _width = width >= 8 ? 8 : width;
+  _height = height >= 8 ? 8 : height;
+
+  // for now, do nothing if this allocation fails.  methods that require it
+  // should silently fail if _buffer is null.
+  _buffer = (uint8_t *) calloc(_height, 1);
+}
+  
+Sprite::Sprite(uint8_t width, uint8_t height)
+{
+  init(width, height);
+}
+
+Sprite::Sprite(uint8_t width, uint8_t height, uint8_t row, ...)
+{
+  init(width, height);
+  
+  if (!_buffer) return;
+  
+  va_list ap;
+  va_start(ap, row);
+
+  int y = 0;
+  
+  for (y = 0; ; y++) {
+    for (int x = 0; x < width && x < 8; x++)
+      write(x, y, (row >> (width - x - 1)) & 0x01);
+    
+    if (y == height - 1)
+      break;
+      
+    row = va_arg(ap, int); // using '...' promotes uint8_t to int
+  }
+  
+  va_end(ap);
+}
+
+uint8_t Sprite::width() const
+{
+  return _width;
+}
+
+uint8_t Sprite::height() const
+{
+  return _height;
+}
+
+void Sprite::write(uint8_t x, uint8_t y, uint8_t value)
+{
+  if (!_buffer) return;
+  
+  // uint8_t's can't be negative, so don't test for negative x and y.
+  if (x >= _width || y >= _height) return;
+  
+  // we need to bitwise-or the value of the other pixels in the byte with
+  // the new value, masked and shifted into the proper bits.
+  _buffer[y] = (_buffer[y] & ~(0x01 << x)) | ((value & 0x01) << x);
+}
+
+uint8_t Sprite::read(uint8_t x, uint8_t y) const
+{
+  if (!_buffer) return 0;
+  
+  // uint8_t's can't be negative, so don't test for negative x and y.
+  if (x >= _width || y >= _height) return 0;
+  
+  return (_buffer[y] >> x) & 0x01;
+}
diff --git a/core/libraries/Sprite/Sprite.h b/core/libraries/Sprite/Sprite.h
new file mode 100644
index 0000000..bdcfdb8
--- /dev/null
+++ b/core/libraries/Sprite/Sprite.h
@@ -0,0 +1,48 @@
+/*
+  Sprite.cpp - 2D sprite buffers library for Arduino & Wiring
+  Copyright (c) 2006 David A. Mellis.  All right reserved.
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef Sprite_h
+#define Sprite_h
+
+#include <inttypes.h>
+
+#include "binary.h"
+
+class Sprite
+{
+  private:
+    uint8_t _width;
+    uint8_t _height;
+    uint8_t _depth;
+    uint8_t _ppb;
+    uint8_t _bpr;
+    uint8_t _mask;
+    uint8_t *_buffer;
+    
+    void init(uint8_t width, uint8_t height);
+  public: 
+    Sprite(uint8_t width, uint8_t height);
+    Sprite(uint8_t width, uint8_t height, uint8_t row, ...);
+    uint8_t width() const;
+    uint8_t height() const;
+    void write(uint8_t x, uint8_t y, uint8_t value);
+    uint8_t read(uint8_t x, uint8_t y) const;
+};
+
+#endif
diff --git a/core/libraries/Sprite/binary.h b/core/libraries/Sprite/binary.h
new file mode 100644
index 0000000..af14980
--- /dev/null
+++ b/core/libraries/Sprite/binary.h
@@ -0,0 +1,515 @@
+#ifndef Binary_h
+#define Binary_h
+
+#define B0 0
+#define B00 0
+#define B000 0
+#define B0000 0
+#define B00000 0
+#define B000000 0
+#define B0000000 0
+#define B00000000 0
+#define B1 1
+#define B01 1
+#define B001 1
+#define B0001 1
+#define B00001 1
+#define B000001 1
+#define B0000001 1
+#define B00000001 1
+#define B10 2
+#define B010 2
+#define B0010 2
+#define B00010 2
+#define B000010 2
+#define B0000010 2
+#define B00000010 2
+#define B11 3
+#define B011 3
+#define B0011 3
+#define B00011 3
+#define B000011 3
+#define B0000011 3
+#define B00000011 3
+#define B100 4
+#define B0100 4
+#define B00100 4
+#define B000100 4
+#define B0000100 4
+#define B00000100 4
+#define B101 5
+#define B0101 5
+#define B00101 5
+#define B000101 5
+#define B0000101 5
+#define B00000101 5
+#define B110 6
+#define B0110 6
+#define B00110 6
+#define B000110 6
+#define B0000110 6
+#define B00000110 6
+#define B111 7
+#define B0111 7
+#define B00111 7
+#define B000111 7
+#define B0000111 7
+#define B00000111 7
+#define B1000 8
+#define B01000 8
+#define B001000 8
+#define B0001000 8
+#define B00001000 8
+#define B1001 9
+#define B01001 9
+#define B001001 9
+#define B0001001 9
+#define B00001001 9
+#define B1010 10
+#define B01010 10
+#define B001010 10
+#define B0001010 10
+#define B00001010 10
+#define B1011 11
+#define B01011 11
+#define B001011 11
+#define B0001011 11
+#define B00001011 11
+#define B1100 12
+#define B01100 12
+#define B001100 12
+#define B0001100 12
+#define B00001100 12
+#define B1101 13
+#define B01101 13
+#define B001101 13
+#define B0001101 13
+#define B00001101 13
+#define B1110 14
+#define B01110 14
+#define B001110 14
+#define B0001110 14
+#define B00001110 14
+#define B1111 15
+#define B01111 15
+#define B001111 15
+#define B0001111 15
+#define B00001111 15
+#define B10000 16
+#define B010000 16
+#define B0010000 16
+#define B00010000 16
+#define B10001 17
+#define B010001 17
+#define B0010001 17
+#define B00010001 17
+#define B10010 18
+#define B010010 18
+#define B0010010 18
+#define B00010010 18
+#define B10011 19
+#define B010011 19
+#define B0010011 19
+#define B00010011 19
+#define B10100 20
+#define B010100 20
+#define B0010100 20
+#define B00010100 20
+#define B10101 21
+#define B010101 21
+#define B0010101 21
+#define B00010101 21
+#define B10110 22
+#define B010110 22
+#define B0010110 22
+#define B00010110 22
+#define B10111 23
+#define B010111 23
+#define B0010111 23
+#define B00010111 23
+#define B11000 24
+#define B011000 24
+#define B0011000 24
+#define B00011000 24
+#define B11001 25
+#define B011001 25
+#define B0011001 25
+#define B00011001 25
+#define B11010 26
+#define B011010 26
+#define B0011010 26
+#define B00011010 26
+#define B11011 27
+#define B011011 27
+#define B0011011 27
+#define B00011011 27
+#define B11100 28
+#define B011100 28
+#define B0011100 28
+#define B00011100 28
+#define B11101 29
+#define B011101 29
+#define B0011101 29
+#define B00011101 29
+#define B11110 30
+#define B011110 30
+#define B0011110 30
+#define B00011110 30
+#define B11111 31
+#define B011111 31
+#define B0011111 31
+#define B00011111 31
+#define B100000 32
+#define B0100000 32
+#define B00100000 32
+#define B100001 33
+#define B0100001 33
+#define B00100001 33
+#define B100010 34
+#define B0100010 34
+#define B00100010 34
+#define B100011 35
+#define B0100011 35
+#define B00100011 35
+#define B100100 36
+#define B0100100 36
+#define B00100100 36
+#define B100101 37
+#define B0100101 37
+#define B00100101 37
+#define B100110 38
+#define B0100110 38
+#define B00100110 38
+#define B100111 39
+#define B0100111 39
+#define B00100111 39
+#define B101000 40
+#define B0101000 40
+#define B00101000 40
+#define B101001 41
+#define B0101001 41
+#define B00101001 41
+#define B101010 42
+#define B0101010 42
+#define B00101010 42
+#define B101011 43
+#define B0101011 43
+#define B00101011 43
+#define B101100 44
+#define B0101100 44
+#define B00101100 44
+#define B101101 45
+#define B0101101 45
+#define B00101101 45
+#define B101110 46
+#define B0101110 46
+#define B00101110 46
+#define B101111 47
+#define B0101111 47
+#define B00101111 47
+#define B110000 48
+#define B0110000 48
+#define B00110000 48
+#define B110001 49
+#define B0110001 49
+#define B00110001 49
+#define B110010 50
+#define B0110010 50
+#define B00110010 50
+#define B110011 51
+#define B0110011 51
+#define B00110011 51
+#define B110100 52
+#define B0110100 52
+#define B00110100 52
+#define B110101 53
+#define B0110101 53
+#define B00110101 53
+#define B110110 54
+#define B0110110 54
+#define B00110110 54
+#define B110111 55
+#define B0110111 55
+#define B00110111 55
+#define B111000 56
+#define B0111000 56
+#define B00111000 56
+#define B111001 57
+#define B0111001 57
+#define B00111001 57
+#define B111010 58
+#define B0111010 58
+#define B00111010 58
+#define B111011 59
+#define B0111011 59
+#define B00111011 59
+#define B111100 60
+#define B0111100 60
+#define B00111100 60
+#define B111101 61
+#define B0111101 61
+#define B00111101 61
+#define B111110 62
+#define B0111110 62
+#define B00111110 62
+#define B111111 63
+#define B0111111 63
+#define B00111111 63
+#define B1000000 64
+#define B01000000 64
+#define B1000001 65
+#define B01000001 65
+#define B1000010 66
+#define B01000010 66
+#define B1000011 67
+#define B01000011 67
+#define B1000100 68
+#define B01000100 68
+#define B1000101 69
+#define B01000101 69
+#define B1000110 70
+#define B01000110 70
+#define B1000111 71
+#define B01000111 71
+#define B1001000 72
+#define B01001000 72
+#define B1001001 73
+#define B01001001 73
+#define B1001010 74
+#define B01001010 74
+#define B1001011 75
+#define B01001011 75
+#define B1001100 76
+#define B01001100 76
+#define B1001101 77
+#define B01001101 77
+#define B1001110 78
+#define B01001110 78
+#define B1001111 79
+#define B01001111 79
+#define B1010000 80
+#define B01010000 80
+#define B1010001 81
+#define B01010001 81
+#define B1010010 82
+#define B01010010 82
+#define B1010011 83
+#define B01010011 83
+#define B1010100 84
+#define B01010100 84
+#define B1010101 85
+#define B01010101 85
+#define B1010110 86
+#define B01010110 86
+#define B1010111 87
+#define B01010111 87
+#define B1011000 88
+#define B01011000 88
+#define B1011001 89
+#define B01011001 89
+#define B1011010 90
+#define B01011010 90
+#define B1011011 91
+#define B01011011 91
+#define B1011100 92
+#define B01011100 92
+#define B1011101 93
+#define B01011101 93
+#define B1011110 94
+#define B01011110 94
+#define B1011111 95
+#define B01011111 95
+#define B1100000 96
+#define B01100000 96
+#define B1100001 97
+#define B01100001 97
+#define B1100010 98
+#define B01100010 98
+#define B1100011 99
+#define B01100011 99
+#define B1100100 100
+#define B01100100 100
+#define B1100101 101
+#define B01100101 101
+#define B1100110 102
+#define B01100110 102
+#define B1100111 103
+#define B01100111 103
+#define B1101000 104
+#define B01101000 104
+#define B1101001 105
+#define B01101001 105
+#define B1101010 106
+#define B01101010 106
+#define B1101011 107
+#define B01101011 107
+#define B1101100 108
+#define B01101100 108
+#define B1101101 109
+#define B01101101 109
+#define B1101110 110
+#define B01101110 110
+#define B1101111 111
+#define B01101111 111
+#define B1110000 112
+#define B01110000 112
+#define B1110001 113
+#define B01110001 113
+#define B1110010 114
+#define B01110010 114
+#define B1110011 115
+#define B01110011 115
+#define B1110100 116
+#define B01110100 116
+#define B1110101 117
+#define B01110101 117
+#define B1110110 118
+#define B01110110 118
+#define B1110111 119
+#define B01110111 119
+#define B1111000 120
+#define B01111000 120
+#define B1111001 121
+#define B01111001 121
+#define B1111010 122
+#define B01111010 122
+#define B1111011 123
+#define B01111011 123
+#define B1111100 124
+#define B01111100 124
+#define B1111101 125
+#define B01111101 125
+#define B1111110 126
+#define B01111110 126
+#define B1111111 127
+#define B01111111 127
+#define B10000000 128
+#define B10000001 129
+#define B10000010 130
+#define B10000011 131
+#define B10000100 132
+#define B10000101 133
+#define B10000110 134
+#define B10000111 135
+#define B10001000 136
+#define B10001001 137
+#define B10001010 138
+#define B10001011 139
+#define B10001100 140
+#define B10001101 141
+#define B10001110 142
+#define B10001111 143
+#define B10010000 144
+#define B10010001 145
+#define B10010010 146
+#define B10010011 147
+#define B10010100 148
+#define B10010101 149
+#define B10010110 150
+#define B10010111 151
+#define B10011000 152
+#define B10011001 153
+#define B10011010 154
+#define B10011011 155
+#define B10011100 156
+#define B10011101 157
+#define B10011110 158
+#define B10011111 159
+#define B10100000 160
+#define B10100001 161
+#define B10100010 162
+#define B10100011 163
+#define B10100100 164
+#define B10100101 165
+#define B10100110 166
+#define B10100111 167
+#define B10101000 168
+#define B10101001 169
+#define B10101010 170
+#define B10101011 171
+#define B10101100 172
+#define B10101101 173
+#define B10101110 174
+#define B10101111 175
+#define B10110000 176
+#define B10110001 177
+#define B10110010 178
+#define B10110011 179
+#define B10110100 180
+#define B10110101 181
+#define B10110110 182
+#define B10110111 183
+#define B10111000 184
+#define B10111001 185
+#define B10111010 186
+#define B10111011 187
+#define B10111100 188
+#define B10111101 189
+#define B10111110 190
+#define B10111111 191
+#define B11000000 192
+#define B11000001 193
+#define B11000010 194
+#define B11000011 195
+#define B11000100 196
+#define B11000101 197
+#define B11000110 198
+#define B11000111 199
+#define B11001000 200
+#define B11001001 201
+#define B11001010 202
+#define B11001011 203
+#define B11001100 204
+#define B11001101 205
+#define B11001110 206
+#define B11001111 207
+#define B11010000 208
+#define B11010001 209
+#define B11010010 210
+#define B11010011 211
+#define B11010100 212
+#define B11010101 213
+#define B11010110 214
+#define B11010111 215
+#define B11011000 216
+#define B11011001 217
+#define B11011010 218
+#define B11011011 219
+#define B11011100 220
+#define B11011101 221
+#define B11011110 222
+#define B11011111 223
+#define B11100000 224
+#define B11100001 225
+#define B11100010 226
+#define B11100011 227
+#define B11100100 228
+#define B11100101 229
+#define B11100110 230
+#define B11100111 231
+#define B11101000 232
+#define B11101001 233
+#define B11101010 234
+#define B11101011 235
+#define B11101100 236
+#define B11101101 237
+#define B11101110 238
+#define B11101111 239
+#define B11110000 240
+#define B11110001 241
+#define B11110010 242
+#define B11110011 243
+#define B11110100 244
+#define B11110101 245
+#define B11110110 246
+#define B11110111 247
+#define B11111000 248
+#define B11111001 249
+#define B11111010 250
+#define B11111011 251
+#define B11111100 252
+#define B11111101 253
+#define B11111110 254
+#define B11111111 255
+
+#endif
diff --git a/core/libraries/Sprite/keywords.txt b/core/libraries/Sprite/keywords.txt
new file mode 100644
index 0000000..73cd8d9
--- /dev/null
+++ b/core/libraries/Sprite/keywords.txt
@@ -0,0 +1,534 @@
+#######################################
+# Syntax Coloring Map For Sprite
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+Sprite	KEYWORD1
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+width	KEYWORD2
+height	KEYWORD2
+write	KEYWORD2
+read	KEYWORD2
+
+#######################################
+# Constants (LITERAL1)
+#######################################
+
+B0	LITERAL1
+B00	LITERAL1
+B000	LITERAL1
+B0000	LITERAL1
+B00000	LITERAL1
+B000000	LITERAL1
+B0000000	LITERAL1
+B00000000	LITERAL1
+B1	LITERAL1
+B01	LITERAL1
+B001	LITERAL1
+B0001	LITERAL1
+B00001	LITERAL1
+B000001	LITERAL1
+B0000001	LITERAL1
+B00000001	LITERAL1
+B10	LITERAL1
+B010	LITERAL1
+B0010	LITERAL1
+B00010	LITERAL1
+B000010	LITERAL1
+B0000010	LITERAL1
+B00000010	LITERAL1
+B11	LITERAL1
+B011	LITERAL1
+B0011	LITERAL1
+B00011	LITERAL1
+B000011	LITERAL1
+B0000011	LITERAL1
+B00000011	LITERAL1
+B100	LITERAL1
+B0100	LITERAL1
+B00100	LITERAL1
+B000100	LITERAL1
+B0000100	LITERAL1
+B00000100	LITERAL1
+B101	LITERAL1
+B0101	LITERAL1
+B00101	LITERAL1
+B000101	LITERAL1
+B0000101	LITERAL1
+B00000101	LITERAL1
+B110	LITERAL1
+B0110	LITERAL1
+B00110	LITERAL1
+B000110	LITERAL1
+B0000110	LITERAL1
+B00000110	LITERAL1
+B111	LITERAL1
+B0111	LITERAL1
+B00111	LITERAL1
+B000111	LITERAL1
+B0000111	LITERAL1
+B00000111	LITERAL1
+B1000	LITERAL1
+B01000	LITERAL1
+B001000	LITERAL1
+B0001000	LITERAL1
+B00001000	LITERAL1
+B1001	LITERAL1
+B01001	LITERAL1
+B001001	LITERAL1
+B0001001	LITERAL1
+B00001001	LITERAL1
+B1010	LITERAL1
+B01010	LITERAL1
+B001010	LITERAL1
+B0001010	LITERAL1
+B00001010	LITERAL1
+B1011	LITERAL1
+B01011	LITERAL1
+B001011	LITERAL1
+B0001011	LITERAL1
+B00001011	LITERAL1
+B1100	LITERAL1
+B01100	LITERAL1
+B001100	LITERAL1
+B0001100	LITERAL1
+B00001100	LITERAL1
+B1101	LITERAL1
+B01101	LITERAL1
+B001101	LITERAL1
+B0001101	LITERAL1
+B00001101	LITERAL1
+B1110	LITERAL1
+B01110	LITERAL1
+B001110	LITERAL1
+B0001110	LITERAL1
+B00001110	LITERAL1
+B1111	LITERAL1
+B01111	LITERAL1
+B001111	LITERAL1
+B0001111	LITERAL1
+B00001111	LITERAL1
+B10000	LITERAL1
+B010000	LITERAL1
+B0010000	LITERAL1
+B00010000	LITERAL1
+B10001	LITERAL1
+B010001	LITERAL1
+B0010001	LITERAL1
+B00010001	LITERAL1
+B10010	LITERAL1
+B010010	LITERAL1
+B0010010	LITERAL1
+B00010010	LITERAL1
+B10011	LITERAL1
+B010011	LITERAL1
+B0010011	LITERAL1
+B00010011	LITERAL1
+B10100	LITERAL1
+B010100	LITERAL1
+B0010100	LITERAL1
+B00010100	LITERAL1
+B10101	LITERAL1
+B010101	LITERAL1
+B0010101	LITERAL1
+B00010101	LITERAL1
+B10110	LITERAL1
+B010110	LITERAL1
+B0010110	LITERAL1
+B00010110	LITERAL1
+B10111	LITERAL1
+B010111	LITERAL1
+B0010111	LITERAL1
+B00010111	LITERAL1
+B11000	LITERAL1
+B011000	LITERAL1
+B0011000	LITERAL1
+B00011000	LITERAL1
+B11001	LITERAL1
+B011001	LITERAL1
+B0011001	LITERAL1
+B00011001	LITERAL1
+B11010	LITERAL1
+B011010	LITERAL1
+B0011010	LITERAL1
+B00011010	LITERAL1
+B11011	LITERAL1
+B011011	LITERAL1
+B0011011	LITERAL1
+B00011011	LITERAL1
+B11100	LITERAL1
+B011100	LITERAL1
+B0011100	LITERAL1
+B00011100	LITERAL1
+B11101	LITERAL1
+B011101	LITERAL1
+B0011101	LITERAL1
+B00011101	LITERAL1
+B11110	LITERAL1
+B011110	LITERAL1
+B0011110	LITERAL1
+B00011110	LITERAL1
+B11111	LITERAL1
+B011111	LITERAL1
+B0011111	LITERAL1
+B00011111	LITERAL1
+B100000	LITERAL1
+B0100000	LITERAL1
+B00100000	LITERAL1
+B100001	LITERAL1
+B0100001	LITERAL1
+B00100001	LITERAL1
+B100010	LITERAL1
+B0100010	LITERAL1
+B00100010	LITERAL1
+B100011	LITERAL1
+B0100011	LITERAL1
+B00100011	LITERAL1
+B100100	LITERAL1
+B0100100	LITERAL1
+B00100100	LITERAL1
+B100101	LITERAL1
+B0100101	LITERAL1
+B00100101	LITERAL1
+B100110	LITERAL1
+B0100110	LITERAL1
+B00100110	LITERAL1
+B100111	LITERAL1
+B0100111	LITERAL1
+B00100111	LITERAL1
+B101000	LITERAL1
+B0101000	LITERAL1
+B00101000	LITERAL1
+B101001	LITERAL1
+B0101001	LITERAL1
+B00101001	LITERAL1
+B101010	LITERAL1
+B0101010	LITERAL1
+B00101010	LITERAL1
+B101011	LITERAL1
+B0101011	LITERAL1
+B00101011	LITERAL1
+B101100	LITERAL1
+B0101100	LITERAL1
+B00101100	LITERAL1
+B101101	LITERAL1
+B0101101	LITERAL1
+B00101101	LITERAL1
+B101110	LITERAL1
+B0101110	LITERAL1
+B00101110	LITERAL1
+B101111	LITERAL1
+B0101111	LITERAL1
+B00101111	LITERAL1
+B110000	LITERAL1
+B0110000	LITERAL1
+B00110000	LITERAL1
+B110001	LITERAL1
+B0110001	LITERAL1
+B00110001	LITERAL1
+B110010	LITERAL1
+B0110010	LITERAL1
+B00110010	LITERAL1
+B110011	LITERAL1
+B0110011	LITERAL1
+B00110011	LITERAL1
+B110100	LITERAL1
+B0110100	LITERAL1
+B00110100	LITERAL1
+B110101	LITERAL1
+B0110101	LITERAL1
+B00110101	LITERAL1
+B110110	LITERAL1
+B0110110	LITERAL1
+B00110110	LITERAL1
+B110111	LITERAL1
+B0110111	LITERAL1
+B00110111	LITERAL1
+B111000	LITERAL1
+B0111000	LITERAL1
+B00111000	LITERAL1
+B111001	LITERAL1
+B0111001	LITERAL1
+B00111001	LITERAL1
+B111010	LITERAL1
+B0111010	LITERAL1
+B00111010	LITERAL1
+B111011	LITERAL1
+B0111011	LITERAL1
+B00111011	LITERAL1
+B111100	LITERAL1
+B0111100	LITERAL1
+B00111100	LITERAL1
+B111101	LITERAL1
+B0111101	LITERAL1
+B00111101	LITERAL1
+B111110	LITERAL1
+B0111110	LITERAL1
+B00111110	LITERAL1
+B111111	LITERAL1
+B0111111	LITERAL1
+B00111111	LITERAL1
+B1000000	LITERAL1
+B01000000	LITERAL1
+B1000001	LITERAL1
+B01000001	LITERAL1
+B1000010	LITERAL1
+B01000010	LITERAL1
+B1000011	LITERAL1
+B01000011	LITERAL1
+B1000100	LITERAL1
+B01000100	LITERAL1
+B1000101	LITERAL1
+B01000101	LITERAL1
+B1000110	LITERAL1
+B01000110	LITERAL1
+B1000111	LITERAL1
+B01000111	LITERAL1
+B1001000	LITERAL1
+B01001000	LITERAL1
+B1001001	LITERAL1
+B01001001	LITERAL1
+B1001010	LITERAL1
+B01001010	LITERAL1
+B1001011	LITERAL1
+B01001011	LITERAL1
+B1001100	LITERAL1
+B01001100	LITERAL1
+B1001101	LITERAL1
+B01001101	LITERAL1
+B1001110	LITERAL1
+B01001110	LITERAL1
+B1001111	LITERAL1
+B01001111	LITERAL1
+B1010000	LITERAL1
+B01010000	LITERAL1
+B1010001	LITERAL1
+B01010001	LITERAL1
+B1010010	LITERAL1
+B01010010	LITERAL1
+B1010011	LITERAL1
+B01010011	LITERAL1
+B1010100	LITERAL1
+B01010100	LITERAL1
+B1010101	LITERAL1
+B01010101	LITERAL1
+B1010110	LITERAL1
+B01010110	LITERAL1
+B1010111	LITERAL1
+B01010111	LITERAL1
+B1011000	LITERAL1
+B01011000	LITERAL1
+B1011001	LITERAL1
+B01011001	LITERAL1
+B1011010	LITERAL1
+B01011010	LITERAL1
+B1011011	LITERAL1
+B01011011	LITERAL1
+B1011100	LITERAL1
+B01011100	LITERAL1
+B1011101	LITERAL1
+B01011101	LITERAL1
+B1011110	LITERAL1
+B01011110	LITERAL1
+B1011111	LITERAL1
+B01011111	LITERAL1
+B1100000	LITERAL1
+B01100000	LITERAL1
+B1100001	LITERAL1
+B01100001	LITERAL1
+B1100010	LITERAL1
+B01100010	LITERAL1
+B1100011	LITERAL1
+B01100011	LITERAL1
+B1100100	LITERAL1
+B01100100	LITERAL1
+B1100101	LITERAL1
+B01100101	LITERAL1
+B1100110	LITERAL1
+B01100110	LITERAL1
+B1100111	LITERAL1
+B01100111	LITERAL1
+B1101000	LITERAL1
+B01101000	LITERAL1
+B1101001	LITERAL1
+B01101001	LITERAL1
+B1101010	LITERAL1
+B01101010	LITERAL1
+B1101011	LITERAL1
+B01101011	LITERAL1
+B1101100	LITERAL1
+B01101100	LITERAL1
+B1101101	LITERAL1
+B01101101	LITERAL1
+B1101110	LITERAL1
+B01101110	LITERAL1
+B1101111	LITERAL1
+B01101111	LITERAL1
+B1110000	LITERAL1
+B01110000	LITERAL1
+B1110001	LITERAL1
+B01110001	LITERAL1
+B1110010	LITERAL1
+B01110010	LITERAL1
+B1110011	LITERAL1
+B01110011	LITERAL1
+B1110100	LITERAL1
+B01110100	LITERAL1
+B1110101	LITERAL1
+B01110101	LITERAL1
+B1110110	LITERAL1
+B01110110	LITERAL1
+B1110111	LITERAL1
+B01110111	LITERAL1
+B1111000	LITERAL1
+B01111000	LITERAL1
+B1111001	LITERAL1
+B01111001	LITERAL1
+B1111010	LITERAL1
+B01111010	LITERAL1
+B1111011	LITERAL1
+B01111011	LITERAL1
+B1111100	LITERAL1
+B01111100	LITERAL1
+B1111101	LITERAL1
+B01111101	LITERAL1
+B1111110	LITERAL1
+B01111110	LITERAL1
+B1111111	LITERAL1
+B01111111	LITERAL1
+B10000000	LITERAL1
+B10000001	LITERAL1
+B10000010	LITERAL1
+B10000011	LITERAL1
+B10000100	LITERAL1
+B10000101	LITERAL1
+B10000110	LITERAL1
+B10000111	LITERAL1
+B10001000	LITERAL1
+B10001001	LITERAL1
+B10001010	LITERAL1
+B10001011	LITERAL1
+B10001100	LITERAL1
+B10001101	LITERAL1
+B10001110	LITERAL1
+B10001111	LITERAL1
+B10010000	LITERAL1
+B10010001	LITERAL1
+B10010010	LITERAL1
+B10010011	LITERAL1
+B10010100	LITERAL1
+B10010101	LITERAL1
+B10010110	LITERAL1
+B10010111	LITERAL1
+B10011000	LITERAL1
+B10011001	LITERAL1
+B10011010	LITERAL1
+B10011011	LITERAL1
+B10011100	LITERAL1
+B10011101	LITERAL1
+B10011110	LITERAL1
+B10011111	LITERAL1
+B10100000	LITERAL1
+B10100001	LITERAL1
+B10100010	LITERAL1
+B10100011	LITERAL1
+B10100100	LITERAL1
+B10100101	LITERAL1
+B10100110	LITERAL1
+B10100111	LITERAL1
+B10101000	LITERAL1
+B10101001	LITERAL1
+B10101010	LITERAL1
+B10101011	LITERAL1
+B10101100	LITERAL1
+B10101101	LITERAL1
+B10101110	LITERAL1
+B10101111	LITERAL1
+B10110000	LITERAL1
+B10110001	LITERAL1
+B10110010	LITERAL1
+B10110011	LITERAL1
+B10110100	LITERAL1
+B10110101	LITERAL1
+B10110110	LITERAL1
+B10110111	LITERAL1
+B10111000	LITERAL1
+B10111001	LITERAL1
+B10111010	LITERAL1
+B10111011	LITERAL1
+B10111100	LITERAL1
+B10111101	LITERAL1
+B10111110	LITERAL1
+B10111111	LITERAL1
+B11000000	LITERAL1
+B11000001	LITERAL1
+B11000010	LITERAL1
+B11000011	LITERAL1
+B11000100	LITERAL1
+B11000101	LITERAL1
+B11000110	LITERAL1
+B11000111	LITERAL1
+B11001000	LITERAL1
+B11001001	LITERAL1
+B11001010	LITERAL1
+B11001011	LITERAL1
+B11001100	LITERAL1
+B11001101	LITERAL1
+B11001110	LITERAL1
+B11001111	LITERAL1
+B11010000	LITERAL1
+B11010001	LITERAL1
+B11010010	LITERAL1
+B11010011	LITERAL1
+B11010100	LITERAL1
+B11010101	LITERAL1
+B11010110	LITERAL1
+B11010111	LITERAL1
+B11011000	LITERAL1
+B11011001	LITERAL1
+B11011010	LITERAL1
+B11011011	LITERAL1
+B11011100	LITERAL1
+B11011101	LITERAL1
+B11011110	LITERAL1
+B11011111	LITERAL1
+B11100000	LITERAL1
+B11100001	LITERAL1
+B11100010	LITERAL1
+B11100011	LITERAL1
+B11100100	LITERAL1
+B11100101	LITERAL1
+B11100110	LITERAL1
+B11100111	LITERAL1
+B11101000	LITERAL1
+B11101001	LITERAL1
+B11101010	LITERAL1
+B11101011	LITERAL1
+B11101100	LITERAL1
+B11101101	LITERAL1
+B11101110	LITERAL1
+B11101111	LITERAL1
+B11110000	LITERAL1
+B11110001	LITERAL1
+B11110010	LITERAL1
+B11110011	LITERAL1
+B11110100	LITERAL1
+B11110101	LITERAL1
+B11110110	LITERAL1
+B11110111	LITERAL1
+B11111000	LITERAL1
+B11111001	LITERAL1
+B11111010	LITERAL1
+B11111011	LITERAL1
+B11111100	LITERAL1
+B11111101	LITERAL1
+B11111110	LITERAL1
+B11111111	LITERAL1
+
diff --git a/core/libraries/Stepper/Stepper.cpp b/core/libraries/Stepper/Stepper.cpp
new file mode 100644
index 0000000..b10f94c
--- /dev/null
+++ b/core/libraries/Stepper/Stepper.cpp
@@ -0,0 +1,220 @@
+/*
+  Stepper.cpp - - Stepper library for Wiring/Arduino - Version 0.4
+  
+  Original library     (0.1) by Tom Igoe.
+  Two-wire modifications   (0.2) by Sebastian Gassner
+  Combination version   (0.3) by Tom Igoe and David Mellis
+  Bug fix for four-wire   (0.4) by Tom Igoe, bug fix from Noah Shibley  
+
+  Drives a unipolar or bipolar stepper motor using  2 wires or 4 wires
+
+  When wiring multiple stepper motors to a microcontroller,
+  you quickly run out of output pins, with each motor requiring 4 connections. 
+
+  By making use of the fact that at any time two of the four motor
+  coils are the inverse  of the other two, the number of
+  control connections can be reduced from 4 to 2. 
+
+  A slightly modified circuit around a Darlington transistor array or an L293 H-bridge
+  connects to only 2 microcontroler pins, inverts the signals received,
+  and delivers the 4 (2 plus 2 inverted ones) output signals required
+  for driving a stepper motor.
+
+  The sequence of control signals for 4 control wires is as follows:
+
+  Step C0 C1 C2 C3
+     1  1  0  1  0
+     2  0  1  1  0
+     3  0  1  0  1
+     4  1  0  0  1
+
+  The sequence of controls signals for 2 control wires is as follows
+  (columns C1 and C2 from above):
+
+  Step C0 C1
+     1  0  1
+     2  1  1
+     3  1  0
+     4  0  0
+
+  The circuits can be found at 
+ 
+http://www.arduino.cc/en/Tutorial/Stepper
+ 
+ 
+ */
+
+
+#include "WProgram.h"
+#include "Stepper.h"
+
+/*
+ * two-wire constructor.
+ * Sets which wires should control the motor.
+ */
+Stepper::Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2)
+{
+  this->step_number = 0;      // which step the motor is on
+  this->speed = 0;        // the motor speed, in revolutions per minute
+  this->direction = 0;      // motor direction
+  this->last_step_time = 0;    // time stamp in ms of the last step taken
+  this->number_of_steps = number_of_steps;    // total number of steps for this motor
+  
+  // Arduino pins for the motor control connection:
+  this->motor_pin_1 = motor_pin_1;
+  this->motor_pin_2 = motor_pin_2;
+
+  // setup the pins on the microcontroller:
+  pinMode(this->motor_pin_1, OUTPUT);
+  pinMode(this->motor_pin_2, OUTPUT);
+  
+  // When there are only 2 pins, set the other two to 0:
+  this->motor_pin_3 = 0;
+  this->motor_pin_4 = 0;
+  
+  // pin_count is used by the stepMotor() method:
+  this->pin_count = 2;
+}
+
+
+/*
+ *   constructor for four-pin version
+ *   Sets which wires should control the motor.
+ */
+
+Stepper::Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2, int motor_pin_3, int motor_pin_4)
+{
+  this->step_number = 0;      // which step the motor is on
+  this->speed = 0;        // the motor speed, in revolutions per minute
+  this->direction = 0;      // motor direction
+  this->last_step_time = 0;    // time stamp in ms of the last step taken
+  this->number_of_steps = number_of_steps;    // total number of steps for this motor
+  
+  // Arduino pins for the motor control connection:
+  this->motor_pin_1 = motor_pin_1;
+  this->motor_pin_2 = motor_pin_2;
+  this->motor_pin_3 = motor_pin_3;
+  this->motor_pin_4 = motor_pin_4;
+
+  // setup the pins on the microcontroller:
+  pinMode(this->motor_pin_1, OUTPUT);
+  pinMode(this->motor_pin_2, OUTPUT);
+  pinMode(this->motor_pin_3, OUTPUT);
+  pinMode(this->motor_pin_4, OUTPUT);
+
+  // pin_count is used by the stepMotor() method:  
+  this->pin_count = 4;  
+}
+
+/*
+  Sets the speed in revs per minute
+
+*/
+void Stepper::setSpeed(long whatSpeed)
+{
+  this->step_delay = 60L * 1000L / this->number_of_steps / whatSpeed;
+}
+
+/*
+  Moves the motor steps_to_move steps.  If the number is negative, 
+   the motor moves in the reverse direction.
+ */
+void Stepper::step(int steps_to_move)
+{  
+  int steps_left = abs(steps_to_move);  // how many steps to take
+  
+  // determine direction based on whether steps_to_mode is + or -:
+  if (steps_to_move > 0) {this->direction = 1;}
+  if (steps_to_move < 0) {this->direction = 0;}
+    
+    
+  // decrement the number of steps, moving one step each time:
+  while(steps_left > 0) {
+  // move only if the appropriate delay has passed:
+  if (millis() - this->last_step_time >= this->step_delay) {
+      // step the motor to step number 0, 1, 2, or 3:
+      stepMotor(this->step_number % 4);
+      // get the timeStamp of when you stepped:
+      this->last_step_time = millis();
+      // increment or decrement the step number,
+      // depending on direction:
+      if (this->direction == 1) {
+        this->step_number++;
+        if (this->step_number == this->number_of_steps) {
+          this->step_number = 0;
+        }
+      } 
+      else { 
+        if (this->step_number == 0) {
+          this->step_number = this->number_of_steps;
+        }
+        this->step_number--;
+      }
+      // decrement the steps left:
+      steps_left--;
+    }
+  }
+}
+
+/*
+ * Moves the motor forward or backwards.
+ */
+void Stepper::stepMotor(int thisStep)
+{
+  if (this->pin_count == 2) {
+    switch (thisStep) {
+      case 0: /* 01 */
+      digitalWrite(motor_pin_1, LOW);
+      digitalWrite(motor_pin_2, HIGH);
+      break;
+      case 1: /* 11 */
+      digitalWrite(motor_pin_1, HIGH);
+      digitalWrite(motor_pin_2, HIGH);
+      break;
+      case 2: /* 10 */
+      digitalWrite(motor_pin_1, HIGH);
+      digitalWrite(motor_pin_2, LOW);
+      break;
+      case 3: /* 00 */
+      digitalWrite(motor_pin_1, LOW);
+      digitalWrite(motor_pin_2, LOW);
+      break;
+    } 
+  }
+  if (this->pin_count == 4) {
+    switch (thisStep) {
+      case 0:    // 1010
+      digitalWrite(motor_pin_1, HIGH);
+      digitalWrite(motor_pin_2, LOW);
+      digitalWrite(motor_pin_3, HIGH);
+      digitalWrite(motor_pin_4, LOW);
+      break;
+      case 1:    // 0110
+      digitalWrite(motor_pin_1, LOW);
+      digitalWrite(motor_pin_2, HIGH);
+      digitalWrite(motor_pin_3, HIGH);
+      digitalWrite(motor_pin_4, LOW);
+      break;
+      case 2:    //0101
+      digitalWrite(motor_pin_1, LOW);
+      digitalWrite(motor_pin_2, HIGH);
+      digitalWrite(motor_pin_3, LOW);
+      digitalWrite(motor_pin_4, HIGH);
+      break;
+      case 3:    //1001
+      digitalWrite(motor_pin_1, HIGH);
+      digitalWrite(motor_pin_2, LOW);
+      digitalWrite(motor_pin_3, LOW);
+      digitalWrite(motor_pin_4, HIGH);
+      break;
+    } 
+  }
+}
+
+/*
+  version() returns the version of the library:
+*/
+int Stepper::version(void)
+{
+  return 4;
+}
diff --git a/core/libraries/Stepper/Stepper.h b/core/libraries/Stepper/Stepper.h
new file mode 100644
index 0000000..a3aa180
--- /dev/null
+++ b/core/libraries/Stepper/Stepper.h
@@ -0,0 +1,86 @@
+/*
+  Stepper.h - - Stepper library for Wiring/Arduino - Version 0.4
+  
+  Original library     (0.1) by Tom Igoe.
+  Two-wire modifications   (0.2) by Sebastian Gassner
+  Combination version   (0.3) by Tom Igoe and David Mellis
+  Bug fix for four-wire   (0.4) by Tom Igoe, bug fix from Noah Shibley
+
+  Drives a unipolar or bipolar stepper motor using  2 wires or 4 wires
+
+  When wiring multiple stepper motors to a microcontroller,
+  you quickly run out of output pins, with each motor requiring 4 connections. 
+
+  By making use of the fact that at any time two of the four motor
+  coils are the inverse  of the other two, the number of
+  control connections can be reduced from 4 to 2. 
+
+  A slightly modified circuit around a Darlington transistor array or an L293 H-bridge
+  connects to only 2 microcontroler pins, inverts the signals received,
+  and delivers the 4 (2 plus 2 inverted ones) output signals required
+  for driving a stepper motor.
+
+  The sequence of control signals for 4 control wires is as follows:
+
+  Step C0 C1 C2 C3
+     1  1  0  1  0
+     2  0  1  1  0
+     3  0  1  0  1
+     4  1  0  0  1
+
+  The sequence of controls signals for 2 control wires is as follows
+  (columns C1 and C2 from above):
+
+  Step C0 C1
+     1  0  1
+     2  1  1
+     3  1  0
+     4  0  0
+
+  The circuits can be found at 
+  http://www.arduino.cc/en/Tutorial/Stepper
+*/
+
+// ensure this library description is only included once
+#ifndef Stepper_h
+#define Stepper_h
+
+// include types & constants of Wiring core API
+#include "WConstants.h"
+
+// library interface description
+class Stepper {
+  public:
+    // constructors:
+    Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2);
+    Stepper(int number_of_steps, int motor_pin_1, int motor_pin_2, int motor_pin_3, int motor_pin_4);
+
+    // speed setter method:
+    void setSpeed(long whatSpeed);
+
+    // mover method:
+    void step(int number_of_steps);
+
+    int version(void);
+
+  private:
+    void stepMotor(int this_step);
+    
+    int direction;        // Direction of rotation
+    int speed;          // Speed in RPMs
+    unsigned long step_delay;    // delay between steps, in ms, based on speed
+    int number_of_steps;      // total number of steps this motor can take
+    int pin_count;        // whether you're driving the motor with 2 or 4 pins
+    int step_number;        // which step the motor is on
+    
+    // motor pin numbers:
+    int motor_pin_1;
+    int motor_pin_2;
+    int motor_pin_3;
+    int motor_pin_4;
+    
+    long last_step_time;      // time stamp in ms of when the last step was taken
+};
+
+#endif
+
diff --git a/core/libraries/Stepper/examples/MotorKnob/MotorKnob.pde b/core/libraries/Stepper/examples/MotorKnob/MotorKnob.pde
new file mode 100644
index 0000000..062cac9
--- /dev/null
+++ b/core/libraries/Stepper/examples/MotorKnob/MotorKnob.pde
@@ -0,0 +1,40 @@
+/*
+ * MotorKnob
+ *
+ * A stepper motor follows the turns of a potentiometer
+ * (or other sensor) on analog input 0.
+ *
+ * http://www.arduino.cc/en/Reference/Stepper
+ */
+
+#include <Stepper.h>
+
+// change this to the number of steps on your motor
+#define STEPS 100
+
+// create an instance of the stepper class, specifying
+// the number of steps of the motor and the pins it's
+// attached to
+Stepper stepper(STEPS, 8, 9, 10, 11);
+
+// the previous reading from the analog input
+int previous = 0;
+
+void setup()
+{
+  // set the speed of the motor to 30 RPMs
+  stepper.setSpeed(30);
+}
+
+void loop()
+{
+  // get the sensor value
+  int val = analogRead(0);
+
+  // move a number of steps equal to the change in the
+  // sensor reading
+  stepper.step(val - previous);
+
+  // remember the previous value of the sensor
+  previous = val;
+}
\ No newline at end of file
diff --git a/core/libraries/Stepper/keywords.txt b/core/libraries/Stepper/keywords.txt
new file mode 100644
index 0000000..19a0fad
--- /dev/null
+++ b/core/libraries/Stepper/keywords.txt
@@ -0,0 +1,28 @@
+#######################################
+# Syntax Coloring Map For Test
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+Stepper	KEYWORD1
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+step	KEYWORD2
+setSpeed	KEYWORD2
+version	KEYWORD2
+
+######################################
+# Instances (KEYWORD2)
+#######################################
+direction	KEYWORD2
+speed	KEYWORD2
+
+
+#######################################
+# Constants (LITERAL1)
+#######################################
diff --git a/core/libraries/Wire/Wire.cpp b/core/libraries/Wire/Wire.cpp
new file mode 100755
index 0000000..73369b3
--- /dev/null
+++ b/core/libraries/Wire/Wire.cpp
@@ -0,0 +1,262 @@
+/*
+  TwoWire.cpp - TWI/I2C library for Wiring & Arduino
+  Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+extern "C" {
+  #include <stdlib.h>
+  #include <string.h>
+  #include <inttypes.h>
+  #include "twi.h"
+}
+
+#include "Wire.h"
+
+// Initialize Class Variables //////////////////////////////////////////////////
+
+uint8_t* TwoWire::rxBuffer = 0;
+uint8_t TwoWire::rxBufferIndex = 0;
+uint8_t TwoWire::rxBufferLength = 0;
+
+uint8_t TwoWire::txAddress = 0;
+uint8_t* TwoWire::txBuffer = 0;
+uint8_t TwoWire::txBufferIndex = 0;
+uint8_t TwoWire::txBufferLength = 0;
+
+uint8_t TwoWire::transmitting = 0;
+void (*TwoWire::user_onRequest)(void);
+void (*TwoWire::user_onReceive)(int);
+
+// Constructors ////////////////////////////////////////////////////////////////
+
+TwoWire::TwoWire()
+{
+}
+
+// Public Methods //////////////////////////////////////////////////////////////
+
+void TwoWire::begin(void)
+{
+  // init buffer for reads
+  rxBuffer = (uint8_t*) calloc(BUFFER_LENGTH, sizeof(uint8_t));
+  rxBufferIndex = 0;
+  rxBufferLength = 0;
+
+  // init buffer for writes
+  txBuffer = (uint8_t*) calloc(BUFFER_LENGTH, sizeof(uint8_t));
+  txBufferIndex = 0;
+  txBufferLength = 0;
+
+  twi_init();
+}
+
+void TwoWire::begin(uint8_t address)
+{
+  twi_setAddress(address);
+  twi_attachSlaveTxEvent(onRequestService);
+  twi_attachSlaveRxEvent(onReceiveService);
+  begin();
+}
+
+void TwoWire::begin(int address)
+{
+  begin((uint8_t)address);
+}
+
+void TwoWire::requestFrom(uint8_t address, uint8_t quantity)
+{
+  // clamp to buffer length
+  if(quantity > BUFFER_LENGTH){
+    quantity = BUFFER_LENGTH;
+  }
+  // perform blocking read into buffer
+  twi_readFrom(address, rxBuffer, quantity);
+  // set rx buffer iterator vars
+  rxBufferIndex = 0;
+  rxBufferLength = quantity;
+}
+
+void TwoWire::requestFrom(int address, int quantity)
+{
+  requestFrom((uint8_t)address, (uint8_t)quantity);
+}
+
+void TwoWire::beginTransmission(uint8_t address)
+{
+  // indicate that we are transmitting
+  transmitting = 1;
+  // set address of targeted slave
+  txAddress = address;
+  // reset tx buffer iterator vars
+  txBufferIndex = 0;
+  txBufferLength = 0;
+}
+
+void TwoWire::beginTransmission(int address)
+{
+  beginTransmission((uint8_t)address);
+}
+
+void TwoWire::endTransmission(void)
+{
+  // transmit buffer (blocking)
+  twi_writeTo(txAddress, txBuffer, txBufferLength, 1);
+  // reset tx buffer iterator vars
+  txBufferIndex = 0;
+  txBufferLength = 0;
+  // indicate that we are done transmitting
+  transmitting = 0;
+}
+
+// must be called in:
+// slave tx event callback
+// or after beginTransmission(address)
+void TwoWire::send(uint8_t data)
+{
+  if(transmitting){
+  // in master transmitter mode
+    // don't bother if buffer is full
+    if(txBufferLength >= BUFFER_LENGTH){
+      return;
+    }
+    // put byte in tx buffer
+    txBuffer[txBufferIndex] = data;
+    ++txBufferIndex;
+    // update amount in buffer   
+    txBufferLength = txBufferIndex;
+  }else{
+  // in slave send mode
+    // reply to master
+    twi_transmit(&data, 1);
+  }
+}
+
+// must be called in:
+// slave tx event callback
+// or after beginTransmission(address)
+void TwoWire::send(uint8_t* data, uint8_t quantity)
+{
+  if(transmitting){
+  // in master transmitter mode
+    for(uint8_t i = 0; i < quantity; ++i){
+      send(data[i]);
+    }
+  }else{
+  // in slave send mode
+    // reply to master
+    twi_transmit(data, quantity);
+  }
+}
+
+// must be called in:
+// slave tx event callback
+// or after beginTransmission(address)
+void TwoWire::send(char* data)
+{
+  send((uint8_t*)data, strlen(data));
+}
+
+// must be called in:
+// slave tx event callback
+// or after beginTransmission(address)
+void TwoWire::send(int data)
+{
+  send((uint8_t)data);
+}
+
+// must be called in:
+// slave rx event callback
+// or after requestFrom(address, numBytes)
+uint8_t TwoWire::available(void)
+{
+  return rxBufferLength - rxBufferIndex;
+}
+
+// must be called in:
+// slave rx event callback
+// or after requestFrom(address, numBytes)
+uint8_t TwoWire::receive(void)
+{
+  // default to returning null char
+  // for people using with char strings
+  uint8_t value = '\0';
+  
+  // get each successive byte on each call
+  if(rxBufferIndex < rxBufferLength){
+    value = rxBuffer[rxBufferIndex];
+    ++rxBufferIndex;
+  }
+
+  return value;
+}
+
+// behind the scenes function that is called when data is received
+void TwoWire::onReceiveService(uint8_t* inBytes, int numBytes)
+{
+  // don't bother if user hasn't registered a callback
+  if(!user_onReceive){
+    return;
+  }
+  // don't bother if rx buffer is in use by a master requestFrom() op
+  // i know this drops data, but it allows for slight stupidity
+  // meaning, they may not have read all the master requestFrom() data yet
+  if(rxBufferIndex < rxBufferLength){
+    return;
+  }
+  // copy twi rx buffer into local read buffer
+  // this enables new reads to happen in parallel
+  for(uint8_t i = 0; i < numBytes; ++i){
+    rxBuffer[i] = inBytes[i];    
+  }
+  // set rx iterator vars
+  rxBufferIndex = 0;
+  rxBufferLength = numBytes;
+  // alert user program
+  user_onReceive(numBytes);
+}
+
+// behind the scenes function that is called when data is requested
+void TwoWire::onRequestService(void)
+{
+  // don't bother if user hasn't registered a callback
+  if(!user_onRequest){
+    return;
+  }
+  // reset tx buffer iterator vars
+  // !!! this will kill any pending pre-master sendTo() activity
+  txBufferIndex = 0;
+  txBufferLength = 0;
+  // alert user program
+  user_onRequest();
+}
+
+// sets function called on slave write
+void TwoWire::onReceive( void (*function)(int) )
+{
+  user_onReceive = function;
+}
+
+// sets function called on slave read
+void TwoWire::onRequest( void (*function)(void) )
+{
+  user_onRequest = function;
+}
+
+// Preinstantiate Objects //////////////////////////////////////////////////////
+
+TwoWire Wire = TwoWire();
+
diff --git a/core/libraries/Wire/Wire.h b/core/libraries/Wire/Wire.h
new file mode 100755
index 0000000..9c91b9b
--- /dev/null
+++ b/core/libraries/Wire/Wire.h
@@ -0,0 +1,67 @@
+/*
+  TwoWire.h - TWI/I2C library for Arduino & Wiring
+  Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef TwoWire_h
+#define TwoWire_h
+
+#include <inttypes.h>
+
+#define BUFFER_LENGTH 32
+
+class TwoWire
+{
+  private:
+    static uint8_t* rxBuffer;
+    static uint8_t rxBufferIndex;
+    static uint8_t rxBufferLength;
+
+    static uint8_t txAddress;
+    static uint8_t* txBuffer;
+    static uint8_t txBufferIndex;
+    static uint8_t txBufferLength;
+
+    static uint8_t transmitting;
+    static void (*user_onRequest)(void);
+    static void (*user_onReceive)(int);
+    static void onRequestService(void);
+    static void onReceiveService(uint8_t*, int);
+  public:
+    TwoWire();
+    void begin();
+    void begin(uint8_t);
+    void begin(int);
+    void beginTransmission(uint8_t);
+    void beginTransmission(int);
+    void endTransmission(void);
+    void requestFrom(uint8_t, uint8_t);
+    void requestFrom(int, int);
+    void send(uint8_t);
+    void send(uint8_t*, uint8_t);
+    void send(int);
+    void send(char*);
+    uint8_t available(void);
+    uint8_t receive(void);
+    void onReceive( void (*)(int) );
+    void onRequest( void (*)(void) );
+};
+
+extern TwoWire Wire;
+
+#endif
+
diff --git a/core/libraries/Wire/examples/SFRRanger_reader/SFRRanger_reader.pde b/core/libraries/Wire/examples/SFRRanger_reader/SFRRanger_reader.pde
new file mode 100755
index 0000000..c89b0f0
--- /dev/null
+++ b/core/libraries/Wire/examples/SFRRanger_reader/SFRRanger_reader.pde
@@ -0,0 +1,84 @@
+// I2C SRF10 or SRF08 Devantech Ultrasonic Ranger Finder 
+// by Nicholas Zambetti <http://www.zambetti.com>
+// and James Tichenor <http://www.jamestichenor.net> 
+
+// Demonstrates use of the Wire library reading data from the 
+// Devantech Utrasonic Rangers SFR08 and SFR10
+
+// Created 29 April 2006
+
+#include <Wire.h>
+
+void setup()
+{
+  Wire.begin();                // join i2c bus (address optional for master)
+  Serial.begin(9600);          // start serial communication at 9600bps
+}
+
+int reading = 0;
+
+void loop()
+{
+  // step 1: instruct sensor to read echoes
+  Wire.beginTransmission(112); // transmit to device #112 (0x70)
+                               // the address specified in the datasheet is 224 (0xE0)
+                               // but i2c adressing uses the high 7 bits so it's 112
+  Wire.send(0x00);             // sets register pointer to the command register (0x00)  
+  Wire.send(0x50);             // command sensor to measure in "inches" (0x50) 
+                               // use 0x51 for centimeters
+                               // use 0x52 for ping microseconds
+  Wire.endTransmission();      // stop transmitting
+
+  // step 2: wait for readings to happen
+  delay(70);                   // datasheet suggests at least 65 milliseconds
+
+  // step 3: instruct sensor to return a particular echo reading
+  Wire.beginTransmission(112); // transmit to device #112
+  Wire.send(0x02);             // sets register pointer to echo #1 register (0x02)
+  Wire.endTransmission();      // stop transmitting
+
+  // step 4: request reading from sensor
+  Wire.requestFrom(112, 2);    // request 2 bytes from slave device #112
+
+  // step 5: receive reading from sensor
+  if(2 <= Wire.available())    // if two bytes were received
+  {
+    reading = Wire.receive();  // receive high byte (overwrites previous reading)
+    reading = reading << 8;    // shift high byte to be high 8 bits
+    reading |= Wire.receive(); // receive low byte as lower 8 bits
+    Serial.println(reading);   // print the reading
+  }
+
+  delay(250);                  // wait a bit since people have to read the output :)
+}
+
+
+/*
+
+// The following code changes the address of a Devantech Ultrasonic Range Finder (SRF10 or SRF08)
+// usage: changeAddress(0x70, 0xE6);
+
+void changeAddress(byte oldAddress, byte newAddress)
+{
+  Wire.beginTransmission(oldAddress);
+  Wire.send(0x00);
+  Wire.send(0xA0);
+  Wire.endTransmission();
+
+  Wire.beginTransmission(oldAddress);
+  Wire.send(0x00);
+  Wire.send(0xAA);
+  Wire.endTransmission();
+
+  Wire.beginTransmission(oldAddress);
+  Wire.send(0x00);
+  Wire.send(0xA5);
+  Wire.endTransmission();
+
+  Wire.beginTransmission(oldAddress);
+  Wire.send(0x00);
+  Wire.send(newAddress);
+  Wire.endTransmission();
+}
+
+*/
diff --git a/core/libraries/Wire/examples/digital_potentiometer/digital_potentiometer.pde b/core/libraries/Wire/examples/digital_potentiometer/digital_potentiometer.pde
new file mode 100644
index 0000000..35ee5d6
--- /dev/null
+++ b/core/libraries/Wire/examples/digital_potentiometer/digital_potentiometer.pde
@@ -0,0 +1,34 @@
+// I2C Digital Potentiometer
+// by Nicholas Zambetti <http://www.zambetti.com>
+// and Shawn Bonkowski <http://people.interaction-ivrea.it/s.bonkowski/>
+
+// Demonstrates use of the Wire library
+// Controls AD5171 digital potentiometer via I2C/TWI
+
+// Created 31 March 2006
+
+#include <Wire.h>
+
+void setup()
+{
+  Wire.begin(); // join i2c bus (address optional for master)
+}
+
+byte val = 0;
+
+void loop()
+{
+  Wire.beginTransmission(44); // transmit to device #44 (0x2c)
+                              // device address is specified in datasheet
+  Wire.send(0x00);            // sends instruction byte  
+  Wire.send(val);             // sends potentiometer value byte  
+  Wire.endTransmission();     // stop transmitting
+
+  val++;        // increment value
+  if(val == 64) // if reached 64th position (max)
+  {
+    val = 0;    // start over from lowest value
+  }
+  delay(500);
+}
+
diff --git a/core/libraries/Wire/examples/master_reader/master_reader.pde b/core/libraries/Wire/examples/master_reader/master_reader.pde
new file mode 100644
index 0000000..1b139de
--- /dev/null
+++ b/core/libraries/Wire/examples/master_reader/master_reader.pde
@@ -0,0 +1,29 @@
+// Wire Master Reader
+// by Nicholas Zambetti <http://www.zambetti.com>
+
+// Demonstrates use of the Wire library
+// Reads data from an I2C/TWI slave device
+// Refer to the "Wire Slave Sender" example for use with this
+
+// Created 29 March 2006
+
+#include <Wire.h>
+
+void setup()
+{
+  Wire.begin();        // join i2c bus (address optional for master)
+  Serial.begin(9600);  // start serial for output
+}
+
+void loop()
+{
+  Wire.requestFrom(2, 6);    // request 6 bytes from slave device #2
+
+  while(Wire.available())    // slave may send less than requested
+  { 
+    char c = Wire.receive(); // receive a byte as character
+    Serial.print(c);         // print the character
+  }
+
+  delay(500);
+}
diff --git a/core/libraries/Wire/examples/master_writer/master_writer.pde b/core/libraries/Wire/examples/master_writer/master_writer.pde
new file mode 100644
index 0000000..d0ff9fa
--- /dev/null
+++ b/core/libraries/Wire/examples/master_writer/master_writer.pde
@@ -0,0 +1,28 @@
+// Wire Master Writer
+// by Nicholas Zambetti <http://www.zambetti.com>
+
+// Demonstrates use of the Wire library
+// Writes data to an I2C/TWI slave device
+// Refer to the "Wire Slave Receiver" example for use with this
+
+// Created 29 March 2006
+
+#include <Wire.h>
+
+void setup()
+{
+  Wire.begin(); // join i2c bus (address optional for master)
+}
+
+byte x = 0;
+
+void loop()
+{
+  Wire.beginTransmission(4); // transmit to device #4
+  Wire.send("x is ");        // sends five bytes
+  Wire.send(x);              // sends one byte  
+  Wire.endTransmission();    // stop transmitting
+
+  x++;
+  delay(500);
+}
diff --git a/core/libraries/Wire/examples/slave_receiver/slave_receiver.pde b/core/libraries/Wire/examples/slave_receiver/slave_receiver.pde
new file mode 100644
index 0000000..53c86b5
--- /dev/null
+++ b/core/libraries/Wire/examples/slave_receiver/slave_receiver.pde
@@ -0,0 +1,35 @@
+// Wire Slave Receiver
+// by Nicholas Zambetti <http://www.zambetti.com>
+
+// Demonstrates use of the Wire library
+// Receives data as an I2C/TWI slave device
+// Refer to the "Wire Master Writer" example for use with this
+
+// Created 29 March 2006
+
+#include <Wire.h>
+
+void setup()
+{
+  Wire.begin(4);                // join i2c bus with address #4
+  Wire.onReceive(receiveEvent); // register event
+  Serial.begin(9600);           // start serial for output
+}
+
+void loop()
+{
+  delay(100);
+}
+
+// function that executes whenever data is received from master
+// this function is registered as an event, see setup()
+void receiveEvent(int howMany)
+{
+  while(1 < Wire.available()) // loop through all but the last
+  {
+    char c = Wire.receive(); // receive byte as a character
+    Serial.print(c);         // print the character
+  }
+  int x = Wire.receive();    // receive byte as an integer
+  Serial.println(x);         // print the integer
+}
diff --git a/core/libraries/Wire/examples/slave_sender/slave_sender.pde b/core/libraries/Wire/examples/slave_sender/slave_sender.pde
new file mode 100644
index 0000000..f500644
--- /dev/null
+++ b/core/libraries/Wire/examples/slave_sender/slave_sender.pde
@@ -0,0 +1,29 @@
+// Wire Slave Sender
+// by Nicholas Zambetti <http://www.zambetti.com>
+
+// Demonstrates use of the Wire library
+// Sends data as an I2C/TWI slave device
+// Refer to the "Wire Master Reader" example for use with this
+
+// Created 29 March 2006
+
+#include <Wire.h>
+
+void setup()
+{
+  Wire.begin(2);                // join i2c bus with address #2
+  Wire.onRequest(requestEvent); // register event
+}
+
+void loop()
+{
+  delay(100);
+}
+
+// function that executes whenever data is requested by master
+// this function is registered as an event, see setup()
+void requestEvent()
+{
+  Wire.send("hello "); // respond with message of 6 bytes
+                       // as expected by master
+}
diff --git a/core/libraries/Wire/keywords.txt b/core/libraries/Wire/keywords.txt
new file mode 100644
index 0000000..12f129b
--- /dev/null
+++ b/core/libraries/Wire/keywords.txt
@@ -0,0 +1,31 @@
+#######################################
+# Syntax Coloring Map For Wire
+#######################################
+
+#######################################
+# Datatypes (KEYWORD1)
+#######################################
+
+#######################################
+# Methods and Functions (KEYWORD2)
+#######################################
+
+begin	KEYWORD2
+beginTransmission	KEYWORD2
+endTransmission	KEYWORD2
+requestFrom	KEYWORD2
+send	KEYWORD2
+receive	KEYWORD2
+onReceive	KEYWORD2
+onRequest	KEYWORD2
+
+#######################################
+# Instances (KEYWORD2)
+#######################################
+
+Wire	KEYWORD2
+
+#######################################
+# Constants (LITERAL1)
+#######################################
+
diff --git a/core/libraries/Wire/utility/twi.c b/core/libraries/Wire/utility/twi.c
new file mode 100644
index 0000000..2235b0b
--- /dev/null
+++ b/core/libraries/Wire/utility/twi.c
@@ -0,0 +1,449 @@
+/*
+  twi.c - TWI/I2C library for Wiring & Arduino
+  Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#include <math.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <avr/signal.h>
+#include <compat/twi.h>
+
+#ifndef cbi
+#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
+#endif
+
+#ifndef sbi
+#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
+#endif
+
+#include "twi.h"
+
+static volatile uint8_t twi_state;
+static uint8_t twi_slarw;
+
+static void (*twi_onSlaveTransmit)(void);
+static void (*twi_onSlaveReceive)(uint8_t*, int);
+
+static uint8_t* twi_masterBuffer;
+static volatile uint8_t twi_masterBufferIndex;
+static uint8_t twi_masterBufferLength;
+
+static uint8_t* twi_txBuffer;
+static volatile uint8_t twi_txBufferIndex;
+static volatile uint8_t twi_txBufferLength;
+
+static uint8_t* twi_rxBuffer;
+static volatile uint8_t twi_rxBufferIndex;
+
+/* 
+ * Function twi_init
+ * Desc     readys twi pins and sets twi bitrate
+ * Input    none
+ * Output   none
+ */
+void twi_init(void)
+{
+  // initialize state
+  twi_state = TWI_READY;
+
+  #if defined(__AVR_ATmega168__) || defined(__AVR_ATmega8__)
+    // activate internal pull-ups for twi
+    // as per note from atmega8 manual pg167
+    sbi(PORTC, 4);
+    sbi(PORTC, 5);
+  #else
+    // activate internal pull-ups for twi
+    // as per note from atmega128 manual pg204
+    sbi(PORTD, 0);
+    sbi(PORTD, 1);
+  #endif
+
+  // initialize twi prescaler and bit rate
+  cbi(TWSR, TWPS0);
+  cbi(TWSR, TWPS1);
+  TWBR = ((CPU_FREQ / TWI_FREQ) - 16) / 2;
+
+  /* twi bit rate formula from atmega128 manual pg 204
+  SCL Frequency = CPU Clock Frequency / (16 + (2 * TWBR))
+  note: TWBR should be 10 or higher for master mode
+  It is 72 for a 16mhz Wiring board with 100kHz TWI */
+
+  // enable twi module, acks, and twi interrupt
+	TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA);
+	
+	// allocate buffers
+  twi_masterBuffer = (uint8_t*) calloc(TWI_BUFFER_LENGTH, sizeof(uint8_t));
+  twi_txBuffer = (uint8_t*) calloc(TWI_BUFFER_LENGTH, sizeof(uint8_t));
+  twi_rxBuffer = (uint8_t*) calloc(TWI_BUFFER_LENGTH, sizeof(uint8_t));
+}
+
+/* 
+ * Function twi_slaveInit
+ * Desc     sets slave address and enables interrupt
+ * Input    none
+ * Output   none
+ */
+void twi_setAddress(uint8_t address)
+{
+  // set twi slave address (skip over TWGCE bit)
+  TWAR = address << 1;
+}
+
+/* 
+ * Function twi_readFrom
+ * Desc     attempts to become twi bus master and read a
+ *          series of bytes from a device on the bus
+ * Input    address: 7bit i2c device address
+ *          data: pointer to byte array
+ *          length: number of bytes to read into array
+ * Output   byte: 0 ok, 1 length too long for buffer
+ */
+uint8_t twi_readFrom(uint8_t address, uint8_t* data, uint8_t length)
+{
+  uint8_t i;
+
+  // ensure data will fit into buffer
+  if(TWI_BUFFER_LENGTH < length){
+    return 1;
+  }
+
+  // wait until twi is ready, become master receiver
+  while(TWI_READY != twi_state){
+    continue;
+  }
+  twi_state = TWI_MRX;
+
+  // initialize buffer iteration vars
+  twi_masterBufferIndex = 0;
+  twi_masterBufferLength = length;
+
+  // build sla+w, slave device address + w bit
+  twi_slarw = TW_READ;
+	twi_slarw |= address << 1;
+
+  // send start condition
+	TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTA);
+
+	// wait for read operation to complete
+	while(TWI_MRX == twi_state){
+	  continue;
+	}
+
+  // copy twi buffer to data
+  for(i = 0; i < length; ++i){
+    data[i] = twi_masterBuffer[i];
+  }
+	
+	return 0;
+}
+
+/* 
+ * Function twi_writeTo
+ * Desc     attempts to become twi bus master and write a
+ *          series of bytes to a device on the bus
+ * Input    address: 7bit i2c device address
+ *          data: pointer to byte array
+ *          length: number of bytes in array
+ *          wait: boolean indicating to wait for write or not
+ * Output   byte: 0 ok, 1 length too long for buffer
+ */
+uint8_t twi_writeTo(uint8_t address, uint8_t* data, uint8_t length, uint8_t wait)
+{
+  uint8_t i;
+
+  // ensure data will fit into buffer
+  if(TWI_BUFFER_LENGTH < length){
+    return 1;
+  }
+
+  // wait until twi is ready, become master transmitter
+  while(TWI_READY != twi_state){
+    continue;
+  }
+  twi_state = TWI_MTX;
+
+  // initialize buffer iteration vars
+  twi_masterBufferIndex = 0;
+  twi_masterBufferLength = length;
+  
+  // copy data to twi buffer
+  for(i = 0; i < length; ++i){
+    twi_masterBuffer[i] = data[i];
+  }
+  
+  // build sla+w, slave device address + w bit
+  twi_slarw = TW_WRITE;
+	twi_slarw |= address << 1;
+  
+  // send start condition
+	TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTA);
+
+	// wait for write operation to complete
+	while(wait && (TWI_MTX == twi_state)){
+	  continue;
+	}
+	
+	return 0;
+}
+
+/* 
+ * Function twi_transmit
+ * Desc     fills slave tx buffer with data
+ *          must be called in slave tx event callback
+ * Input    data: pointer to byte array
+ *          length: number of bytes in array
+ * Output   1 length too long for buffer
+ *          2 not slave transmitter
+ *          0 ok
+ */
+uint8_t twi_transmit(uint8_t* data, uint8_t length)
+{
+  uint8_t i;
+
+  // ensure data will fit into buffer
+  if(TWI_BUFFER_LENGTH < length){
+    return 1;
+  }
+  
+  // ensure we are currently a slave transmitter
+  if(TWI_STX != twi_state){
+    return 2;
+  }
+  
+  // set length and copy data into tx buffer
+  twi_txBufferLength = length;
+  for(i = 0; i < length; ++i){
+    twi_txBuffer[i] = data[i];
+  }
+  
+  return 0;
+}
+
+/* 
+ * Function twi_attachSlaveRxEvent
+ * Desc     sets function called before a slave read operation
+ * Input    function: callback function to use
+ * Output   none
+ */
+void twi_attachSlaveRxEvent( void (*function)(uint8_t*, int) )
+{
+  twi_onSlaveReceive = function;
+}
+
+/* 
+ * Function twi_attachSlaveTxEvent
+ * Desc     sets function called before a slave write operation
+ * Input    function: callback function to use
+ * Output   none
+ */
+void twi_attachSlaveTxEvent( void (*function)(void) )
+{
+  twi_onSlaveTransmit = function;
+}
+
+/* 
+ * Function twi_reply
+ * Desc     sends byte or readys receive line
+ * Input    ack: byte indicating to ack or to nack
+ * Output   none
+ */
+void twi_reply(uint8_t ack)
+{
+	// transmit master read ready signal, with or without ack
+	if(ack){
+	  TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT) | _BV(TWEA);
+  }else{
+	  TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWINT);
+  }
+}
+
+/* 
+ * Function twi_stop
+ * Desc     relinquishes bus master status
+ * Input    none
+ * Output   none
+ */
+void twi_stop(void)
+{
+  // send stop condition
+  TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT) | _BV(TWSTO);
+
+  // wait for stop condition to be exectued on bus
+  // TWINT is not set after a stop condition!
+  while(TWCR & _BV(TWSTO)){
+    continue;
+  }
+
+  // update twi state
+  twi_state = TWI_READY;
+}
+
+/* 
+ * Function twi_releaseBus
+ * Desc     releases bus control
+ * Input    none
+ * Output   none
+ */
+void twi_releaseBus(void)
+{
+  // release bus
+  TWCR = _BV(TWEN) | _BV(TWIE) | _BV(TWEA) | _BV(TWINT);
+
+  // update twi state
+  twi_state = TWI_READY;
+}
+
+SIGNAL(SIG_2WIRE_SERIAL)
+{
+  switch(TW_STATUS){
+    // All Master
+    case TW_START:     // sent start condition
+    case TW_REP_START: // sent repeated start condition
+      // copy device address and r/w bit to output register and ack
+      TWDR = twi_slarw;
+      twi_reply(1);
+      break;
+
+    // Master Transmitter
+    case TW_MT_SLA_ACK:  // slave receiver acked address
+    case TW_MT_DATA_ACK: // slave receiver acked data
+      // if there is data to send, send it, otherwise stop 
+      if(twi_masterBufferIndex < twi_masterBufferLength){
+        // copy data to output register and ack
+        TWDR = twi_masterBuffer[twi_masterBufferIndex++];
+        twi_reply(1);
+      }else{
+        twi_stop();
+      }
+      break;
+    case TW_MT_SLA_NACK:  // address sent, nack received
+    case TW_MT_DATA_NACK: // data sent, nack received
+      twi_stop();
+      break;
+    case TW_MT_ARB_LOST: // lost bus arbitration
+      twi_releaseBus();
+      break;
+
+    // Master Receiver
+    case TW_MR_DATA_ACK: // data received, ack sent
+      // put byte into buffer
+      twi_masterBuffer[twi_masterBufferIndex++] = TWDR;
+    case TW_MR_SLA_ACK:  // address sent, ack received
+      // ack if more bytes are expected, otherwise nack
+      if(twi_masterBufferIndex < twi_masterBufferLength){
+        twi_reply(1);
+      }else{
+        twi_reply(0);
+      }
+      break;
+    case TW_MR_DATA_NACK: // data received, nack sent
+      // put final byte into buffer
+      twi_masterBuffer[twi_masterBufferIndex++] = TWDR;
+    case TW_MR_SLA_NACK: // address sent, nack received
+      twi_stop();
+      break;
+    // TW_MR_ARB_LOST handled by TW_MT_ARB_LOST case
+
+    // Slave Receiver
+    case TW_SR_SLA_ACK:   // addressed, returned ack
+    case TW_SR_GCALL_ACK: // addressed generally, returned ack
+    case TW_SR_ARB_LOST_SLA_ACK:   // lost arbitration, returned ack
+    case TW_SR_ARB_LOST_GCALL_ACK: // lost arbitration, returned ack
+      // enter slave receiver mode
+      twi_state = TWI_SRX;
+      // indicate that rx buffer can be overwritten and ack
+      twi_rxBufferIndex = 0;
+      twi_reply(1);
+      break;
+    case TW_SR_DATA_ACK:       // data received, returned ack
+    case TW_SR_GCALL_DATA_ACK: // data received generally, returned ack
+      // if there is still room in the rx buffer
+      if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){
+        // put byte in buffer and ack
+        twi_rxBuffer[twi_rxBufferIndex++] = TWDR;
+        twi_reply(1);
+      }else{
+        // otherwise nack
+        twi_reply(0);
+      }
+      break;
+    case TW_SR_STOP: // stop or repeated start condition received
+      // put a null char after data if there's room
+      if(twi_rxBufferIndex < TWI_BUFFER_LENGTH){
+        twi_rxBuffer[twi_rxBufferIndex] = '\0';
+      }
+      // callback to user defined callback
+      twi_onSlaveReceive(twi_rxBuffer, twi_rxBufferIndex);
+      // ack future responses
+      twi_reply(1);
+      // leave slave receiver state
+      twi_state = TWI_READY;
+      break;
+    case TW_SR_DATA_NACK:       // data received, returned nack
+    case TW_SR_GCALL_DATA_NACK: // data received generally, returned nack
+      // nack back at master
+      twi_reply(0);
+      break;
+    
+    // Slave Transmitter
+    case TW_ST_SLA_ACK:          // addressed, returned ack
+    case TW_ST_ARB_LOST_SLA_ACK: // arbitration lost, returned ack
+      // enter slave transmitter mode
+      twi_state = TWI_STX;
+      // ready the tx buffer index for iteration
+      twi_txBufferIndex = 0;
+      // set tx buffer length to be zero, to verify if user changes it
+      twi_txBufferLength = 0;
+      // request for txBuffer to be filled and length to be set
+      // note: user must call twi_transmit(bytes, length) to do this
+      twi_onSlaveTransmit();
+      // if they didn't change buffer & length, initialize it
+      if(0 == twi_txBufferLength){
+        twi_txBufferLength = 1;
+        twi_txBuffer[0] = 0x00;
+      }
+      // transmit first byte from buffer, fall
+    case TW_ST_DATA_ACK: // byte sent, ack returned
+      // copy data to output register
+      TWDR = twi_txBuffer[twi_txBufferIndex++];
+      // if there is more to send, ack, otherwise nack
+      if(twi_txBufferIndex < twi_txBufferLength){
+        twi_reply(1);
+      }else{
+        twi_reply(0);
+      }
+      break;
+    case TW_ST_DATA_NACK: // received nack, we are done 
+    case TW_ST_LAST_DATA: // received ack, but we are done already!
+      // ack future responses
+      twi_reply(1);
+      // leave slave receiver state
+      twi_state = TWI_READY;
+      break;
+
+    // All
+    case TW_NO_INFO:   // no state information
+      break;
+    case TW_BUS_ERROR: // bus error, illegal stop/start
+      twi_stop();
+      break;
+  }
+}
+
diff --git a/core/libraries/Wire/utility/twi.h b/core/libraries/Wire/utility/twi.h
new file mode 100755
index 0000000..7ccbf5c
--- /dev/null
+++ b/core/libraries/Wire/utility/twi.h
@@ -0,0 +1,57 @@
+/*
+  twi.h - TWI/I2C library for Wiring & Arduino
+  Copyright (c) 2006 Nicholas Zambetti.  All right reserved.
+
+  This 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.
+
+  This 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 this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef twi_h

+#define twi_h

+
+  #include <inttypes.h>
+
+  //#define ATMEGA8
+
+  #ifndef CPU_FREQ

+  #define CPU_FREQ 16000000L
+  #endif
+
+  #ifndef TWI_FREQ

+  #define TWI_FREQ 100000L
+  #endif
+
+  #ifndef TWI_BUFFER_LENGTH
+  #define TWI_BUFFER_LENGTH 32
+  #endif
+
+  #define TWI_READY 0
+  #define TWI_MRX   1
+  #define TWI_MTX   2
+  #define TWI_SRX   3
+  #define TWI_STX   4
+  
+  void twi_init(void);
+  void twi_setAddress(uint8_t);
+  uint8_t twi_readFrom(uint8_t, uint8_t*, uint8_t);
+  uint8_t twi_writeTo(uint8_t, uint8_t*, uint8_t, uint8_t);
+  uint8_t twi_transmit(uint8_t*, uint8_t);
+  void twi_attachSlaveRxEvent( void (*)(uint8_t*, int) );
+  void twi_attachSlaveTxEvent( void (*)(void) );
+  void twi_reply(uint8_t);
+  void twi_stop(void);
+  void twi_releaseBus(void);

+

+#endif
+