Revision 0:e81a6274acce, committed 2013-08-16

Comitter:

luizhespanha

Date:

Fri Aug 16 15:41:01 2013 +0000

Child:

1:f066d5347c60

Commit message:

This is a library for the Adafruit LED Backpacks; This library works with the Adafruit Mini 8x8.

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_GFX.cpp	Fri Aug 16 15:41:01 2013 +0000
@@ -0,0 +1,447 @@
+/***********************************
+This is a our graphics core library, for all our displays. 
+We'll be adapting all the
+existing libaries to use this core to make updating, support 
+and upgrading easier!
+
+Adafruit invests time and resources providing this open source code, 
+please support Adafruit and open-source hardware by purchasing 
+products from Adafruit!
+
+Written by Limor Fried/Ladyada  for Adafruit Industries.  
+BSD license, check license.txt for more information
+All text above must be included in any redistribution
+****************************************/
+
+/*
+ *  Modified by Neal Horman 7/14/2012 for use in LPC1768
+ */
+
+#include "mbed.h"
+
+#include "Adafruit_GFX.h"
+#include "glcdfont.h"
+
+#ifdef WANT_ABSTRACTS
+// draw a circle outline
+void Adafruit_GFX::drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color)
+{
+    int16_t f = 1 - r;
+    int16_t ddF_x = 1;
+    int16_t ddF_y = -2 * r;
+    int16_t x = 0;
+    int16_t y = r;
+    
+    drawPixel(x0, y0+r, color);
+    drawPixel(x0, y0-r, color);
+    drawPixel(x0+r, y0, color);
+    drawPixel(x0-r, y0, color);
+    
+    while (x<y)
+    {
+        if (f >= 0)
+        {
+            y--;
+            ddF_y += 2;
+            f += ddF_y;
+        }
+        x++;
+        ddF_x += 2;
+        f += ddF_x;
+        
+        drawPixel(x0 + x, y0 + y, color);
+        drawPixel(x0 - x, y0 + y, color);
+        drawPixel(x0 + x, y0 - y, color);
+        drawPixel(x0 - x, y0 - y, color);
+        drawPixel(x0 + y, y0 + x, color);
+        drawPixel(x0 - y, y0 + x, color);
+        drawPixel(x0 + y, y0 - x, color);
+        drawPixel(x0 - y, y0 - x, color);
+    }
+}
+
+void Adafruit_GFX::drawCircleHelper( int16_t x0, int16_t y0, int16_t r, uint8_t cornername, uint16_t color)
+{
+    int16_t f     = 1 - r;
+    int16_t ddF_x = 1;
+    int16_t ddF_y = -2 * r;
+    int16_t x     = 0;
+    int16_t y     = r;
+    
+    while (x<y)
+    {
+        if (f >= 0)
+        {
+            y--;
+            ddF_y += 2;
+            f += ddF_y;
+        }
+        x++;
+        ddF_x += 2;
+        f += ddF_x;
+        
+        if (cornername & 0x4)
+        {
+            drawPixel(x0 + x, y0 + y, color);
+            drawPixel(x0 + y, y0 + x, color);
+        } 
+
+        if (cornername & 0x2)
+        {
+            drawPixel(x0 + x, y0 - y, color);
+            drawPixel(x0 + y, y0 - x, color);
+        }
+
+        if (cornername & 0x8)
+        {
+            drawPixel(x0 - y, y0 + x, color);
+            drawPixel(x0 - x, y0 + y, color);
+        }
+        
+        if (cornername & 0x1)
+        {
+            drawPixel(x0 - y, y0 - x, color);
+            drawPixel(x0 - x, y0 - y, color);
+        }
+    }
+}
+
+void Adafruit_GFX::fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color)
+{
+    drawFastVLine(x0, y0-r, 2*r+1, color);
+    fillCircleHelper(x0, y0, r, 3, 0, color);
+}
+
+// used to do circles and roundrects!
+void Adafruit_GFX::fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, int16_t delta, uint16_t color)
+{
+    int16_t f     = 1 - r;
+    int16_t ddF_x = 1;
+    int16_t ddF_y = -2 * r;
+    int16_t x     = 0;
+    int16_t y     = r;
+    
+    while (x<y)
+    {
+        if (f >= 0)
+        {
+            y--;
+            ddF_y += 2;
+            f += ddF_y;
+        }
+        x++;
+        ddF_x += 2;
+        f += ddF_x;
+        
+        if (cornername & 0x1)
+        {
+            drawFastVLine(x0+x, y0-y, 2*y+1+delta, color);
+            drawFastVLine(x0+y, y0-x, 2*x+1+delta, color);
+        }
+
+        if (cornername & 0x2)
+        {
+            drawFastVLine(x0-x, y0-y, 2*y+1+delta, color);
+            drawFastVLine(x0-y, y0-x, 2*x+1+delta, color);
+        }
+    }
+}
+
+// bresenham's algorithm - thx wikpedia
+void Adafruit_GFX::drawLine(int16_t x0, int16_t y0,  int16_t x1, int16_t y1, uint16_t color)
+{
+    int16_t steep = abs(y1 - y0) > abs(x1 - x0);
+    
+    if (steep)
+    {
+        swap(x0, y0);
+        swap(x1, y1);
+    }
+    
+    if (x0 > x1)
+    {
+        swap(x0, x1);
+        swap(y0, y1);
+    }
+    
+    int16_t dx, dy;
+    dx = x1 - x0;
+    dy = abs(y1 - y0);
+    
+    int16_t err = dx / 2;
+    int16_t ystep;
+    
+    if (y0 < y1)
+        ystep = 1;
+    else
+        ystep = -1;
+    
+    for (; x0<=x1; x0++)
+    {
+        if (steep)
+            drawPixel(y0, x0, color);
+        else
+            drawPixel(x0, y0, color);
+
+        err -= dy;
+        if (err < 0)
+        {
+            y0 += ystep;
+            err += dx;
+        }
+    }
+}
+
+
+// draw a rectangle
+void Adafruit_GFX::drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
+{
+    drawFastHLine(x, y, w, color);
+    drawFastHLine(x, y+h-1, w, color);
+    drawFastVLine(x, y, h, color);
+    drawFastVLine(x+w-1, y, h, color);
+}
+
+void Adafruit_GFX::drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color)
+{
+    // stupidest version - update in subclasses if desired!
+    drawLine(x, y, x, y+h-1, color);
+}
+
+void Adafruit_GFX::drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color)
+{
+    // stupidest version - update in subclasses if desired!
+    drawLine(x, y, x+w-1, y, color);
+}
+
+void Adafruit_GFX::fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color)
+{
+    // stupidest version - update in subclasses if desired!
+    for (int16_t i=x; i<x+w; i++)
+        drawFastVLine(i, y, h, color); 
+}
+
+
+void Adafruit_GFX::fillScreen(uint16_t color)
+{
+    fillRect(0, 0, _width, _height, color);
+}
+
+// draw a rounded rectangle!
+void Adafruit_GFX::drawRoundRect(int16_t x, int16_t y, int16_t w, int16_t h, int16_t r, uint16_t color)
+{
+    // smarter version
+    drawFastHLine(x+r  , y    , w-2*r, color); // Top
+    drawFastHLine(x+r  , y+h-1, w-2*r, color); // Bottom
+    drawFastVLine(  x    , y+r  , h-2*r, color); // Left
+    drawFastVLine(  x+w-1, y+r  , h-2*r, color); // Right
+    // draw four corners
+    drawCircleHelper(x+r    , y+r    , r, 1, color);
+    drawCircleHelper(x+w-r-1, y+r    , r, 2, color);
+    drawCircleHelper(x+w-r-1, y+h-r-1, r, 4, color);
+    drawCircleHelper(x+r    , y+h-r-1, r, 8, color);
+}
+
+// fill a rounded rectangle!
+void Adafruit_GFX::fillRoundRect(int16_t x, int16_t y, int16_t w, int16_t h, int16_t r, uint16_t color)
+{
+    // smarter version
+    fillRect(x+r, y, w-2*r, h, color);
+    
+    // draw four corners
+    fillCircleHelper(x+w-r-1, y+r, r, 1, h-2*r-1, color);
+    fillCircleHelper(x+r    , y+r, r, 2, h-2*r-1, color);
+}
+
+// draw a triangle!
+void Adafruit_GFX::drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color)
+{
+    drawLine(x0, y0, x1, y1, color);
+    drawLine(x1, y1, x2, y2, color);
+    drawLine(x2, y2, x0, y0, color);
+}
+
+// fill a triangle!
+void Adafruit_GFX::fillTriangle ( int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color)
+{
+    int16_t a, b, y, last;
+    
+    // Sort coordinates by Y order (y2 >= y1 >= y0)
+    if (y0 > y1)
+        swap(y0, y1); swap(x0, x1);
+
+    if (y1 > y2)
+        swap(y2, y1); swap(x2, x1);
+
+    if (y0 > y1)
+        swap(y0, y1); swap(x0, x1);
+
+    
+    if(y0 == y2)
+    { // Handle awkward all-on-same-line case as its own thing
+        a = b = x0;
+        if(x1 < a)
+            a = x1;
+        else if(x1 > b)
+            b = x1;
+            
+        if(x2 < a)
+            a = x2;
+        else if(x2 > b) b = x2;
+            drawFastHLine(a, y0, b-a+1, color);
+        return;
+    }
+
+    int16_t
+        dx01 = x1 - x0,
+        dy01 = y1 - y0,
+        dx02 = x2 - x0,
+        dy02 = y2 - y0,
+        dx12 = x2 - x1,
+        dy12 = y2 - y1,
+        sa   = 0,
+        sb   = 0;
+
+    // For upper part of triangle, find scanline crossings for segments
+    // 0-1 and 0-2.  If y1=y2 (flat-bottomed triangle), the scanline y1
+    // is included here (and second loop will be skipped, avoiding a /0
+    // error there), otherwise scanline y1 is skipped here and handled
+    // in the second loop...which also avoids a /0 error here if y0=y1
+    // (flat-topped triangle).
+    if(y1 == y2)
+        last = y1;   // Include y1 scanline
+    else
+        last = y1-1; // Skip it
+
+    for(y=y0; y<=last; y++)
+    {
+        a   = x0 + sa / dy01;
+        b   = x0 + sb / dy02;
+        sa += dx01;
+        sb += dx02;
+        /* longhand:
+        a = x0 + (x1 - x0) * (y - y0) / (y1 - y0);
+        b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
+        */
+        if(a > b)
+            swap(a,b);
+        drawFastHLine(a, y, b-a+1, color);
+    }
+
+    // For lower part of triangle, find scanline crossings for segments
+    // 0-2 and 1-2.  This loop is skipped if y1=y2.
+    sa = dx12 * (y - y1);
+    sb = dx02 * (y - y0);
+    for(; y<=y2; y++)
+    {
+        a   = x1 + sa / dy12;
+        b   = x0 + sb / dy02;
+        sa += dx12;
+        sb += dx02;
+        /* longhand:
+        a = x1 + (x2 - x1) * (y - y1) / (y2 - y1);
+        b = x0 + (x2 - x0) * (y - y0) / (y2 - y0);
+        */
+        if(a > b)
+            swap(a,b);
+        drawFastHLine(a, y, b-a+1, color);
+    }
+}
+#endif
+
+void Adafruit_GFX::drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color)
+{
+    for (int16_t j=0; j<h; j++)
+    {
+        for (int16_t i=0; i<w; i++ )
+        {
+            if (bitmap[i + (j/8)*w] & _BV(j%8))
+                drawPixel(x+i, y+j, color);
+        }
+    }
+}
+
+size_t Adafruit_GFX::writeChar(uint8_t c)
+{
+    if (c == '\n')
+    {
+        cursor_y += textsize*8;
+        cursor_x = 0;
+    }
+    else if (c == '\r')
+        cursor_x = 0;
+    else
+    {
+        drawChar(cursor_x, cursor_y, c, textcolor, textbgcolor, textsize);
+        cursor_x += textsize*6;
+        if (wrap && (cursor_x > (_width - textsize*6)))
+        {
+            cursor_y += textsize*8;
+            cursor_x = 0;
+        }
+    }
+    return 1;
+}
+
+// draw a character
+void Adafruit_GFX::drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color, uint16_t bg, uint8_t size)
+{
+    if(
+        (x >= _width) || // Clip right
+        (y >= _height) || // Clip bottom
+        ((x + 5 * size - 1) < 0) || // Clip left
+        ((y + 8 * size - 1) < 0) // Clip top
+        )
+    return;
+    
+    for (int8_t i=0; i<6; i++ )
+    {
+        uint8_t line = 0;
+
+        if (i == 5) 
+            line = 0x0;
+        else 
+            line = font[(c*5)+i];
+            
+        for (int8_t j = 0; j<8; j++)
+        {
+            if (line & 0x1)
+            {
+                if (size == 1) // default size
+                    drawPixel(x+i, y+j, color);
+#ifdef WANT_ABSTRACTS
+                else // big size
+                    fillRect(x+(i*size), y+(j*size), size, size, color);
+#endif
+            }
+            else if (bg != color)
+            {
+                if (size == 1) // default size
+                    drawPixel(x+i, y+j, bg);
+#ifdef WANT_ABSTRACTS
+                else // big size
+                    fillRect(x+i*size, y+j*size, size, size, bg);
+#endif
+            }
+            line >>= 1;
+        }
+    }
+}
+void Adafruit_GFX::setRotation(uint8_t x)
+{
+    x %= 4;  // cant be higher than 3
+    rotation = x;
+    switch (x)
+    {
+        case 0:
+        case 2:
+            _width = _rawWidth;
+            _height = _rawHeight;
+            break;
+        case 1:
+        case 3:
+            _width = _rawHeight;
+            _height = _rawWidth;
+            break;
+    }
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_GFX.h	Fri Aug 16 15:41:01 2013 +0000
@@ -0,0 +1,111 @@
+/***********************************
+This is a our graphics core library, for all our displays. 
+We'll be adapting all the
+existing libaries to use this core to make updating, support 
+and upgrading easier!
+
+Adafruit invests time and resources providing this open source code, 
+please support Adafruit and open-source hardware by purchasing 
+products from Adafruit!
+
+Written by Limor Fried/Ladyada  for Adafruit Industries.  
+BSD license, check license.txt for more information
+All text above must be included in any redistribution
+****************************************/
+
+/*
+ *  Modified by Neal Horman 7/14/2012 for use in LPC1768
+ */
+
+#ifndef _ADAFRUIT_GFX_H_
+#define _ADAFRUIT_GFX_H_
+
+static inline void swap(int16_t &a, int16_t &b)
+{
+    int16_t t = a;
+    
+    a = b;
+    b = t;
+}
+
+#ifndef _BV
+#define _BV(bit) (1<<(bit))
+#endif
+
+#define BLACK 0
+#define WHITE 1
+
+class Adafruit_GFX : public Stream
+{
+ public:
+    Adafruit_GFX(int16_t w, int16_t h)
+        : _rawWidth(w)
+        , _rawHeight(h)
+        , _width(w)
+        , _height(h)
+        , cursor_x(0)
+        , cursor_y(0)
+        , textcolor(WHITE)
+        , textbgcolor(BLACK)
+        , textsize(1)
+        , rotation(0)
+        , wrap(true)
+        {};
+
+    // this must be defined by the subclass
+    virtual void drawPixel(int16_t x, int16_t y, uint16_t color) = 0;
+    // this is optional
+    virtual void invertDisplay(bool i) {};
+    
+    // Stream implementation - provides printf() interface
+    // You would otherwise be forced to use writeChar()
+    virtual int _putc(int value) { return writeChar(value); };
+    virtual int _getc() { return -1; };
+
+#ifdef WANT_ABSTRACTS
+    // these are 'generic' drawing functions, so we can share them!
+    virtual void drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color);
+    virtual void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
+    virtual void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
+    virtual void drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
+    virtual void fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
+    virtual void fillScreen(uint16_t color);
+
+    void drawCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
+    void drawCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, uint16_t color);
+    void fillCircle(int16_t x0, int16_t y0, int16_t r, uint16_t color);
+    void fillCircleHelper(int16_t x0, int16_t y0, int16_t r, uint8_t cornername, int16_t delta, uint16_t color);
+
+    void drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
+    void fillTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
+    void drawRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);
+    void fillRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);
+#endif
+
+    void drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color);
+    void drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color, uint16_t bg, uint8_t size);
+    size_t writeChar(uint8_t);
+
+    int16_t width(void) { return _width; };
+    int16_t height(void) { return _height; };
+
+    void setCursor(int16_t x, int16_t y) { cursor_x = x; cursor_y = y; };
+    void setTextSize(uint8_t s) { textsize = (s > 0) ? s : 1; };
+    void setTextColor(uint16_t c) { textcolor = c; textbgcolor = c; }
+    void setTextColor(uint16_t c, uint16_t b) { textcolor = c; textbgcolor = b; };
+    void setTextWrap(bool w) { wrap = w; };
+
+    void setRotation(uint8_t r);
+    uint8_t getRotation(void) { rotation %= 4; return rotation; };
+
+protected:
+    int16_t  _rawWidth, _rawHeight;   // this is the 'raw' display w/h - never changes
+    int16_t  _width, _height; // dependent on rotation
+    int16_t  cursor_x, cursor_y;
+    uint16_t textcolor, textbgcolor;
+    uint8_t  textsize;
+    uint8_t  rotation;
+    bool  wrap; // If set, 'wrap' text at right edge of display
+};
+
+#endif

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_LEDBackpack.cpp	Fri Aug 16 15:41:01 2013 +0000
@@ -0,0 +1,110 @@
+/*************************************************** 
+  This is a library for our I2C LED Backpacks
+
+  Designed specifically to work with the Adafruit LED Matrix backpacks 
+  ----> http://www.adafruit.com/products/
+  ----> http://www.adafruit.com/products/
+
+  These displays use I2C to communicate, 2 pins are required to 
+  interface. There are multiple selectable I2C addresses. For backpacks
+  with 2 Address Select pins: 0x70, 0x71, 0x72 or 0x73. For backpacks
+  with 3 Address Select pins: 0x70 thru 0x77
+
+  Adafruit invests time and resources providing this open source code, 
+  please support Adafruit and open-source hardware by purchasing 
+  products from Adafruit!
+
+  Written by Limor Fried/Ladyada for Adafruit Industries.  
+  BSD license, all text above must be included in any redistribution
+ ****************************************************/
+
+#include "mbed.h"
+#include "Adafruit_LEDBackpack.h"
+#include "Adafruit_GFX.h"
+
+void Adafruit_LEDBackpack::setBrightness(uint8_t b) {
+  if (b > 15) b = 15;
+  uint8_t c = 0xE0 | b;
+  char foo[1];
+  foo[0] = c;
+  _i2c->write(i2c_addr, foo, 1); 
+}
+
+void Adafruit_LEDBackpack::blinkRate(uint8_t b) {
+  if (b > 3) b = 0; // turn off if not sure
+  uint8_t c = HT16K33_BLINK_CMD | HT16K33_BLINK_DISPLAYON | (b << 1);
+  char foo[1];
+  foo[0] = c;
+  _i2c->write(i2c_addr, foo, 1);
+}
+
+Adafruit_LEDBackpack::Adafruit_LEDBackpack(I2C *i2c): _i2c(i2c) {
+}
+
+void Adafruit_LEDBackpack::begin(uint8_t _addr = 0x70) {
+  i2c_addr = _addr << 1;
+
+  char foo[1];
+  foo[0] = 0x21;
+
+  _i2c->write(i2c_addr, foo, 1);  // turn on oscillator
+
+  blinkRate(HT16K33_BLINK_OFF);
+  
+  setBrightness(15); // max brightness
+}
+
+void Adafruit_LEDBackpack::writeDisplay(void) {
+  char foo[17];
+  foo[0] = 0x00;
+  int j = 0;
+  for (uint8_t i=1; i<=16; i+=2) {
+    int x = displaybuffer[j] & 0xFF;
+    foo[i] = x;
+    int x2 = displaybuffer[j] >> 8;
+    foo[i+1] = x2;
+    j++;
+  }
+  _i2c->write(i2c_addr, foo, 17);
+}
+
+void Adafruit_LEDBackpack::clear(void) {
+  for (uint8_t i=0; i<8; i++) {
+    displaybuffer[i] = 0;
+  }
+}
+
+Adafruit_8x8matrix::Adafruit_8x8matrix(I2C *i2c) : Adafruit_LEDBackpack(i2c), Adafruit_GFX(8, 8) {
+}
+
+void Adafruit_8x8matrix::drawPixel(int16_t x, int16_t y, uint16_t color) {
+  if ((y < 0) || (y >= 8)) return;
+  if ((x < 0) || (x >= 8)) return;
+
+ // check rotation, move pixel around if necessary
+  switch (getRotation()) {
+  case 1:
+    swap(x, y);
+    x = 8 - x - 1;
+    break;
+  case 2:
+    x = 8 - x - 1;
+    y = 8 - y - 1;
+    break;
+  case 3:
+    swap(x, y);
+    y = 8 - y - 1;
+    break;
+  }
+
+  // wrap around the x
+  x += 7;
+  x %= 8;
+
+
+  if (color) {
+    displaybuffer[y] |= 1 << x;
+  } else {
+    displaybuffer[y] &= ~(1 << x);
+  }
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_LEDBackpack.h	Fri Aug 16 15:41:01 2013 +0000
@@ -0,0 +1,70 @@
+/*************************************************** 
+  This is a library for our I2C LED Backpacks
+
+  Designed specifically to work with the Adafruit LED Matrix backpacks 
+  ----> http://www.adafruit.com/products/
+  ----> http://www.adafruit.com/products/
+
+  These displays use I2C to communicate, 2 pins are required to 
+  interface. There are multiple selectable I2C addresses. For backpacks
+  with 2 Address Select pins: 0x70, 0x71, 0x72 or 0x73. For backpacks
+  with 3 Address Select pins: 0x70 thru 0x77
+
+  Adafruit invests time and resources providing this open source code, 
+  please support Adafruit and open-source hardware by purchasing 
+  products from Adafruit!
+
+  Written by Limor Fried/Ladyada for Adafruit Industries.  
+  BSD license, all text above must be included in any redistribution
+ ****************************************************/
+
+#include "mbed.h"
+#include "Adafruit_GFX.h"
+
+#define LED_ON 1
+#define LED_OFF 0
+
+#define LED_RED 1
+#define LED_YELLOW 2
+#define LED_GREEN 3
+ 
+
+
+#define HT16K33_BLINK_CMD 0x80
+#define HT16K33_BLINK_DISPLAYON 0x01
+#define HT16K33_BLINK_OFF 0
+#define HT16K33_BLINK_2HZ  1
+#define HT16K33_BLINK_1HZ  2
+#define HT16K33_BLINK_HALFHZ  3
+
+#define HT16K33_CMD_BRIGHTNESS 0x0E
+
+// this is the raw HT16K33 controller
+class Adafruit_LEDBackpack {
+ public:
+  Adafruit_LEDBackpack(I2C *i2c);
+  void begin(uint8_t _addr);
+  void setBrightness(uint8_t b);
+  void blinkRate(uint8_t b);
+  void writeDisplay(void);
+  void clear(void);
+
+  uint16_t displaybuffer[8]; 
+
+  void init(uint8_t a);
+
+  protected:
+    I2C *_i2c;
+  
+ private:
+  uint8_t i2c_addr;
+};
+
+class Adafruit_8x8matrix : public Adafruit_LEDBackpack, public Adafruit_GFX {
+ public:
+  Adafruit_8x8matrix(I2C *i2c);
+
+  void drawPixel(int16_t x, int16_t y, uint16_t color);
+
+ private:
+};
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/glcdfont.h	Fri Aug 16 15:41:01 2013 +0000
@@ -0,0 +1,285 @@
+/*********************************************************************
+This is a library for our Monochrome OLEDs based on SSD1306 drivers
+
+  Pick one up today in the adafruit shop!
+  ------> http://www.adafruit.com/category/63_98
+
+These displays use SPI to communicate, 4 or 5 pins are required to  
+interface
+
+Adafruit invests time and resources providing this open source code, 
+please support Adafruit and open-source hardware by purchasing 
+products from Adafruit!
+
+Written by Limor Fried/Ladyada  for Adafruit Industries.  
+BSD license, check license.txt for more information
+All text above, and the splash screen must be included in any redistribution
+*********************************************************************/
+
+/*
+ *  Modified by Neal Horman 7/14/2012 for use in LPC1768
+ */
+ 
+#ifndef FONT5X7_H
+#define FONT5X7_H
+
+// standard ascii 5x7 font
+
+static unsigned char  font[] = {
+    0x00, 0x00, 0x00, 0x00, 0x00,   
+    0x3E, 0x5B, 0x4F, 0x5B, 0x3E,     
+    0x3E, 0x6B, 0x4F, 0x6B, 0x3E,     
+    0x1C, 0x3E, 0x7C, 0x3E, 0x1C, 
+    0x18, 0x3C, 0x7E, 0x3C, 0x18, 
+    0x1C, 0x57, 0x7D, 0x57, 0x1C, 
+    0x1C, 0x5E, 0x7F, 0x5E, 0x1C, 
+    0x00, 0x18, 0x3C, 0x18, 0x00, 
+    0xFF, 0xE7, 0xC3, 0xE7, 0xFF, 
+    0x00, 0x18, 0x24, 0x18, 0x00, 
+    0xFF, 0xE7, 0xDB, 0xE7, 0xFF, 
+    0x30, 0x48, 0x3A, 0x06, 0x0E, 
+    0x26, 0x29, 0x79, 0x29, 0x26, 
+    0x40, 0x7F, 0x05, 0x05, 0x07, 
+    0x40, 0x7F, 0x05, 0x25, 0x3F, 
+    0x5A, 0x3C, 0xE7, 0x3C, 0x5A, 
+    0x7F, 0x3E, 0x1C, 0x1C, 0x08, 
+    0x08, 0x1C, 0x1C, 0x3E, 0x7F, 
+    0x14, 0x22, 0x7F, 0x22, 0x14, 
+    0x5F, 0x5F, 0x00, 0x5F, 0x5F, 
+    0x06, 0x09, 0x7F, 0x01, 0x7F, 
+    0x00, 0x66, 0x89, 0x95, 0x6A, 
+    0x60, 0x60, 0x60, 0x60, 0x60, 
+    0x94, 0xA2, 0xFF, 0xA2, 0x94, 
+    0x08, 0x04, 0x7E, 0x04, 0x08, 
+    0x10, 0x20, 0x7E, 0x20, 0x10, 
+    0x08, 0x08, 0x2A, 0x1C, 0x08, 
+    0x08, 0x1C, 0x2A, 0x08, 0x08, 
+    0x1E, 0x10, 0x10, 0x10, 0x10, 
+    0x0C, 0x1E, 0x0C, 0x1E, 0x0C, 
+    0x30, 0x38, 0x3E, 0x38, 0x30, 
+    0x06, 0x0E, 0x3E, 0x0E, 0x06, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x5F, 0x00, 0x00, 
+    0x00, 0x07, 0x00, 0x07, 0x00, 
+    0x14, 0x7F, 0x14, 0x7F, 0x14, 
+    0x24, 0x2A, 0x7F, 0x2A, 0x12, 
+    0x23, 0x13, 0x08, 0x64, 0x62, 
+    0x36, 0x49, 0x56, 0x20, 0x50, 
+    0x00, 0x08, 0x07, 0x03, 0x00, 
+    0x00, 0x1C, 0x22, 0x41, 0x00, 
+    0x00, 0x41, 0x22, 0x1C, 0x00, 
+    0x2A, 0x1C, 0x7F, 0x1C, 0x2A, 
+    0x08, 0x08, 0x3E, 0x08, 0x08, 
+    0x00, 0x80, 0x70, 0x30, 0x00, 
+    0x08, 0x08, 0x08, 0x08, 0x08, 
+    0x00, 0x00, 0x60, 0x60, 0x00, 
+    0x20, 0x10, 0x08, 0x04, 0x02, 
+    0x3E, 0x51, 0x49, 0x45, 0x3E, 
+    0x00, 0x42, 0x7F, 0x40, 0x00, 
+    0x72, 0x49, 0x49, 0x49, 0x46, 
+    0x21, 0x41, 0x49, 0x4D, 0x33, 
+    0x18, 0x14, 0x12, 0x7F, 0x10, 
+    0x27, 0x45, 0x45, 0x45, 0x39, 
+    0x3C, 0x4A, 0x49, 0x49, 0x31, 
+    0x41, 0x21, 0x11, 0x09, 0x07, 
+    0x36, 0x49, 0x49, 0x49, 0x36, 
+    0x46, 0x49, 0x49, 0x29, 0x1E, 
+    0x00, 0x00, 0x14, 0x00, 0x00, 
+    0x00, 0x40, 0x34, 0x00, 0x00, 
+    0x00, 0x08, 0x14, 0x22, 0x41, 
+    0x14, 0x14, 0x14, 0x14, 0x14, 
+    0x00, 0x41, 0x22, 0x14, 0x08, 
+    0x02, 0x01, 0x59, 0x09, 0x06, 
+    0x3E, 0x41, 0x5D, 0x59, 0x4E, 
+    0x7C, 0x12, 0x11, 0x12, 0x7C, 
+    0x7F, 0x49, 0x49, 0x49, 0x36, 
+    0x3E, 0x41, 0x41, 0x41, 0x22, 
+    0x7F, 0x41, 0x41, 0x41, 0x3E, 
+    0x7F, 0x49, 0x49, 0x49, 0x41, 
+    0x7F, 0x09, 0x09, 0x09, 0x01, 
+    0x3E, 0x41, 0x41, 0x51, 0x73, 
+    0x7F, 0x08, 0x08, 0x08, 0x7F, 
+    0x00, 0x41, 0x7F, 0x41, 0x00, 
+    0x20, 0x40, 0x41, 0x3F, 0x01, 
+    0x7F, 0x08, 0x14, 0x22, 0x41, 
+    0x7F, 0x40, 0x40, 0x40, 0x40, 
+    0x7F, 0x02, 0x1C, 0x02, 0x7F, 
+    0x7F, 0x04, 0x08, 0x10, 0x7F, 
+    0x3E, 0x41, 0x41, 0x41, 0x3E, 
+    0x7F, 0x09, 0x09, 0x09, 0x06, 
+    0x3E, 0x41, 0x51, 0x21, 0x5E, 
+    0x7F, 0x09, 0x19, 0x29, 0x46, 
+    0x26, 0x49, 0x49, 0x49, 0x32, 
+    0x03, 0x01, 0x7F, 0x01, 0x03, 
+    0x3F, 0x40, 0x40, 0x40, 0x3F, 
+    0x1F, 0x20, 0x40, 0x20, 0x1F, 
+    0x3F, 0x40, 0x38, 0x40, 0x3F, 
+    0x63, 0x14, 0x08, 0x14, 0x63, 
+    0x03, 0x04, 0x78, 0x04, 0x03, 
+    0x61, 0x59, 0x49, 0x4D, 0x43, 
+    0x00, 0x7F, 0x41, 0x41, 0x41, 
+    0x02, 0x04, 0x08, 0x10, 0x20, 
+    0x00, 0x41, 0x41, 0x41, 0x7F, 
+    0x04, 0x02, 0x01, 0x02, 0x04, 
+    0x40, 0x40, 0x40, 0x40, 0x40, 
+    0x00, 0x03, 0x07, 0x08, 0x00, 
+    0x20, 0x54, 0x54, 0x78, 0x40, 
+    0x7F, 0x28, 0x44, 0x44, 0x38, 
+    0x38, 0x44, 0x44, 0x44, 0x28, 
+    0x38, 0x44, 0x44, 0x28, 0x7F, 
+    0x38, 0x54, 0x54, 0x54, 0x18, 
+    0x00, 0x08, 0x7E, 0x09, 0x02, 
+    0x18, 0xA4, 0xA4, 0x9C, 0x78, 
+    0x7F, 0x08, 0x04, 0x04, 0x78, 
+    0x00, 0x44, 0x7D, 0x40, 0x00, 
+    0x20, 0x40, 0x40, 0x3D, 0x00, 
+    0x7F, 0x10, 0x28, 0x44, 0x00, 
+    0x00, 0x41, 0x7F, 0x40, 0x00, 
+    0x7C, 0x04, 0x78, 0x04, 0x78, 
+    0x7C, 0x08, 0x04, 0x04, 0x78, 
+    0x38, 0x44, 0x44, 0x44, 0x38, 
+    0xFC, 0x18, 0x24, 0x24, 0x18, 
+    0x18, 0x24, 0x24, 0x18, 0xFC, 
+    0x7C, 0x08, 0x04, 0x04, 0x08, 
+    0x48, 0x54, 0x54, 0x54, 0x24, 
+    0x04, 0x04, 0x3F, 0x44, 0x24, 
+    0x3C, 0x40, 0x40, 0x20, 0x7C, 
+    0x1C, 0x20, 0x40, 0x20, 0x1C, 
+    0x3C, 0x40, 0x30, 0x40, 0x3C, 
+    0x44, 0x28, 0x10, 0x28, 0x44, 
+    0x4C, 0x90, 0x90, 0x90, 0x7C, 
+    0x44, 0x64, 0x54, 0x4C, 0x44, 
+    0x00, 0x08, 0x36, 0x41, 0x00, 
+    0x00, 0x00, 0x77, 0x00, 0x00, 
+    0x00, 0x41, 0x36, 0x08, 0x00, 
+    0x02, 0x01, 0x02, 0x04, 0x02, 
+    0x3C, 0x26, 0x23, 0x26, 0x3C, 
+    0x1E, 0xA1, 0xA1, 0x61, 0x12, 
+    0x3A, 0x40, 0x40, 0x20, 0x7A, 
+    0x38, 0x54, 0x54, 0x55, 0x59, 
+    0x21, 0x55, 0x55, 0x79, 0x41, 
+    0x21, 0x54, 0x54, 0x78, 0x41, 
+    0x21, 0x55, 0x54, 0x78, 0x40, 
+    0x20, 0x54, 0x55, 0x79, 0x40, 
+    0x0C, 0x1E, 0x52, 0x72, 0x12, 
+    0x39, 0x55, 0x55, 0x55, 0x59, 
+    0x39, 0x54, 0x54, 0x54, 0x59, 
+    0x39, 0x55, 0x54, 0x54, 0x58, 
+    0x00, 0x00, 0x45, 0x7C, 0x41, 
+    0x00, 0x02, 0x45, 0x7D, 0x42, 
+    0x00, 0x01, 0x45, 0x7C, 0x40, 
+    0xF0, 0x29, 0x24, 0x29, 0xF0, 
+    0xF0, 0x28, 0x25, 0x28, 0xF0, 
+    0x7C, 0x54, 0x55, 0x45, 0x00, 
+    0x20, 0x54, 0x54, 0x7C, 0x54, 
+    0x7C, 0x0A, 0x09, 0x7F, 0x49, 
+    0x32, 0x49, 0x49, 0x49, 0x32, 
+    0x32, 0x48, 0x48, 0x48, 0x32, 
+    0x32, 0x4A, 0x48, 0x48, 0x30, 
+    0x3A, 0x41, 0x41, 0x21, 0x7A, 
+    0x3A, 0x42, 0x40, 0x20, 0x78, 
+    0x00, 0x9D, 0xA0, 0xA0, 0x7D, 
+    0x39, 0x44, 0x44, 0x44, 0x39, 
+    0x3D, 0x40, 0x40, 0x40, 0x3D, 
+    0x3C, 0x24, 0xFF, 0x24, 0x24, 
+    0x48, 0x7E, 0x49, 0x43, 0x66, 
+    0x2B, 0x2F, 0xFC, 0x2F, 0x2B, 
+    0xFF, 0x09, 0x29, 0xF6, 0x20, 
+    0xC0, 0x88, 0x7E, 0x09, 0x03, 
+    0x20, 0x54, 0x54, 0x79, 0x41, 
+    0x00, 0x00, 0x44, 0x7D, 0x41, 
+    0x30, 0x48, 0x48, 0x4A, 0x32, 
+    0x38, 0x40, 0x40, 0x22, 0x7A, 
+    0x00, 0x7A, 0x0A, 0x0A, 0x72, 
+    0x7D, 0x0D, 0x19, 0x31, 0x7D, 
+    0x26, 0x29, 0x29, 0x2F, 0x28, 
+    0x26, 0x29, 0x29, 0x29, 0x26, 
+    0x30, 0x48, 0x4D, 0x40, 0x20, 
+    0x38, 0x08, 0x08, 0x08, 0x08, 
+    0x08, 0x08, 0x08, 0x08, 0x38, 
+    0x2F, 0x10, 0xC8, 0xAC, 0xBA, 
+    0x2F, 0x10, 0x28, 0x34, 0xFA, 
+    0x00, 0x00, 0x7B, 0x00, 0x00, 
+    0x08, 0x14, 0x2A, 0x14, 0x22, 
+    0x22, 0x14, 0x2A, 0x14, 0x08, 
+    0xAA, 0x00, 0x55, 0x00, 0xAA, 
+    0xAA, 0x55, 0xAA, 0x55, 0xAA, 
+    0x00, 0x00, 0x00, 0xFF, 0x00, 
+    0x10, 0x10, 0x10, 0xFF, 0x00, 
+    0x14, 0x14, 0x14, 0xFF, 0x00, 
+    0x10, 0x10, 0xFF, 0x00, 0xFF, 
+    0x10, 0x10, 0xF0, 0x10, 0xF0, 
+    0x14, 0x14, 0x14, 0xFC, 0x00, 
+    0x14, 0x14, 0xF7, 0x00, 0xFF, 
+    0x00, 0x00, 0xFF, 0x00, 0xFF, 
+    0x14, 0x14, 0xF4, 0x04, 0xFC, 
+    0x14, 0x14, 0x17, 0x10, 0x1F, 
+    0x10, 0x10, 0x1F, 0x10, 0x1F, 
+    0x14, 0x14, 0x14, 0x1F, 0x00, 
+    0x10, 0x10, 0x10, 0xF0, 0x00, 
+    0x00, 0x00, 0x00, 0x1F, 0x10, 
+    0x10, 0x10, 0x10, 0x1F, 0x10, 
+    0x10, 0x10, 0x10, 0xF0, 0x10, 
+    0x00, 0x00, 0x00, 0xFF, 0x10, 
+    0x10, 0x10, 0x10, 0x10, 0x10, 
+    0x10, 0x10, 0x10, 0xFF, 0x10, 
+    0x00, 0x00, 0x00, 0xFF, 0x14, 
+    0x00, 0x00, 0xFF, 0x00, 0xFF, 
+    0x00, 0x00, 0x1F, 0x10, 0x17, 
+    0x00, 0x00, 0xFC, 0x04, 0xF4, 
+    0x14, 0x14, 0x17, 0x10, 0x17, 
+    0x14, 0x14, 0xF4, 0x04, 0xF4, 
+    0x00, 0x00, 0xFF, 0x00, 0xF7, 
+    0x14, 0x14, 0x14, 0x14, 0x14, 
+    0x14, 0x14, 0xF7, 0x00, 0xF7, 
+    0x14, 0x14, 0x14, 0x17, 0x14, 
+    0x10, 0x10, 0x1F, 0x10, 0x1F, 
+    0x14, 0x14, 0x14, 0xF4, 0x14, 
+    0x10, 0x10, 0xF0, 0x10, 0xF0, 
+    0x00, 0x00, 0x1F, 0x10, 0x1F, 
+    0x00, 0x00, 0x00, 0x1F, 0x14, 
+    0x00, 0x00, 0x00, 0xFC, 0x14, 
+    0x00, 0x00, 0xF0, 0x10, 0xF0, 
+    0x10, 0x10, 0xFF, 0x10, 0xFF, 
+    0x14, 0x14, 0x14, 0xFF, 0x14, 
+    0x10, 0x10, 0x10, 0x1F, 0x00, 
+    0x00, 0x00, 0x00, 0xF0, 0x10, 
+    0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
+    0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 
+    0xFF, 0xFF, 0xFF, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0xFF, 0xFF, 
+    0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 
+    0x38, 0x44, 0x44, 0x38, 0x44, 
+    0x7C, 0x2A, 0x2A, 0x3E, 0x14, 
+    0x7E, 0x02, 0x02, 0x06, 0x06, 
+    0x02, 0x7E, 0x02, 0x7E, 0x02, 
+    0x63, 0x55, 0x49, 0x41, 0x63, 
+    0x38, 0x44, 0x44, 0x3C, 0x04, 
+    0x40, 0x7E, 0x20, 0x1E, 0x20, 
+    0x06, 0x02, 0x7E, 0x02, 0x02, 
+    0x99, 0xA5, 0xE7, 0xA5, 0x99, 
+    0x1C, 0x2A, 0x49, 0x2A, 0x1C, 
+    0x4C, 0x72, 0x01, 0x72, 0x4C, 
+    0x30, 0x4A, 0x4D, 0x4D, 0x30, 
+    0x30, 0x48, 0x78, 0x48, 0x30, 
+    0xBC, 0x62, 0x5A, 0x46, 0x3D, 
+    0x3E, 0x49, 0x49, 0x49, 0x00, 
+    0x7E, 0x01, 0x01, 0x01, 0x7E, 
+    0x2A, 0x2A, 0x2A, 0x2A, 0x2A, 
+    0x44, 0x44, 0x5F, 0x44, 0x44, 
+    0x40, 0x51, 0x4A, 0x44, 0x40, 
+    0x40, 0x44, 0x4A, 0x51, 0x40, 
+    0x00, 0x00, 0xFF, 0x01, 0x03, 
+    0xE0, 0x80, 0xFF, 0x00, 0x00, 
+    0x08, 0x08, 0x6B, 0x6B, 0x08,
+    0x36, 0x12, 0x36, 0x24, 0x36, 
+    0x06, 0x0F, 0x09, 0x0F, 0x06, 
+    0x00, 0x00, 0x18, 0x18, 0x00, 
+    0x00, 0x00, 0x10, 0x10, 0x00, 
+    0x30, 0x40, 0xFF, 0x01, 0x01, 
+    0x00, 0x1F, 0x01, 0x01, 0x1E, 
+    0x00, 0x19, 0x1D, 0x17, 0x12, 
+    0x00, 0x3C, 0x3C, 0x3C, 0x3C, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 
+};
+#endif