Revision 0:cb63da12fdcc, committed 2019-11-26

Comitter:

wakabanban

Date:

Tue Nov 26 04:49:45 2019 +0000

Commit message:

ADC Sample

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_GFX.cpp	Tue Nov 26 04:49:45 2019 +0000
@@ -0,0 +1,454 @@
+/***********************************
+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 mbed
+ */
+ 
+#include "mbed.h"
+ 
+#include "Adafruit_GFX.h"
+#include "glcdfont.h"
+ 
+#if defined(GFX_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);
+        }
+    }
+}
+#endif
+ 
+#if defined(GFX_WANT_ABSTRACTS) || defined(GFX_SIZEABLE_TEXT)
+// 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;
+        }
+    }
+}
+ 
+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::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); 
+}
+#endif
+ 
+#if defined(GFX_WANT_ABSTRACTS)
+// 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::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::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);
+    }
+}
+ 
+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);
+        }
+    }
+}
+#endif
+ 
+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 defined(GFX_WANT_ABSTRACTS) || defined(GFX_SIZEABLE_TEXT)
+                if (size == 1) // default size
+                    drawPixel(x+i, y+j, color);
+                else // big size
+                    fillRect(x+(i*size), y+(j*size), size, size, color);
+#else
+                drawPixel(x+i, y+j, color);
+#endif
+            }
+            else if (bg != color)
+            {
+#if defined(GFX_WANT_ABSTRACTS) || defined(GFX_SIZEABLE_TEXT)
+                if (size == 1) // default size
+                    drawPixel(x+i, y+j, bg);
+                else // big size
+                    fillRect(x+i*size, y+j*size, size, size, bg);
+#else
+                drawPixel(x+i, y+j, 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;
+    }
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_GFX.h	Tue Nov 26 04:49:45 2019 +0000
@@ -0,0 +1,183 @@
+/***********************************
+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 mbed
+ */
+ 
+#ifndef _ADAFRUIT_GFX_H_
+#define _ADAFRUIT_GFX_H_
+ 
+#include "Adafruit_GFX_Config.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
+ 
+/**
+ * This is a Text and Graphics element drawing class.
+ * These functions draw to the display buffer.
+ *
+ * Display drivers should be derived from here.
+ * The Display drivers push the display buffer to the
+ * hardware based on application control.
+ *
+ */
+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)
+        {};
+ 
+    /// Paint one BLACK or WHITE pixel in the display buffer
+    // 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 GFX_WANT_ABSTRACTS
+    // these are 'generic' drawing functions, so we can share them!
+    
+    /** Draw a Horizontal Line
+     * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
+     */
+    virtual void drawFastHLine(int16_t x, int16_t y, int16_t w, uint16_t color);
+    /** Draw a rectangle
+     * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
+     */
+    virtual void drawRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
+    /** Fill the entire display
+     * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
+     */
+    virtual void fillScreen(uint16_t color);
+ 
+    /** Draw a circle
+     * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
+     */
+    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);
+    
+    /** Draw and fill a circle
+     * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
+     */
+    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);
+ 
+    /** Draw a triangle
+     * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
+     */
+    void drawTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
+    /** Draw and fill a triangle
+     * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
+     */
+    void fillTriangle(int16_t x0, int16_t y0, int16_t x1, int16_t y1, int16_t x2, int16_t y2, uint16_t color);
+    
+    /** Draw a rounded rectangle
+     * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
+     */
+    void drawRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);
+    /** Draw and fill a rounded rectangle
+     * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
+     */
+    void fillRoundRect(int16_t x0, int16_t y0, int16_t w, int16_t h, int16_t radius, uint16_t color);
+    /** Draw a bitmap
+     * @note GFX_WANT_ABSTRACTS must be defined in Adafruit_GFX_config.h
+     */
+    void drawBitmap(int16_t x, int16_t y, const uint8_t *bitmap, int16_t w, int16_t h, uint16_t color);
+#endif
+ 
+#if defined(GFX_WANT_ABSTRACTS) || defined(GFX_SIZEABLE_TEXT)
+    /** Draw a line
+     * @note GFX_WANT_ABSTRACTS or GFX_SIZEABLE_TEXT must be defined in Adafruit_GFX_config.h
+     */
+    virtual void drawLine(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint16_t color);
+    /** Draw a vertical line
+     * @note GFX_WANT_ABSTRACTS or GFX_SIZEABLE_TEXT must be defined in Adafruit_GFX_config.h
+     */
+    virtual void drawFastVLine(int16_t x, int16_t y, int16_t h, uint16_t color);
+    /** Draw and fill a rectangle
+     * @note GFX_WANT_ABSTRACTS or GFX_SIZEABLE_TEXT must be defined in Adafruit_GFX_config.h
+     */
+    virtual void fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t color);
+#endif
+ 
+    /// Draw a text character at a specified pixel location
+    void drawChar(int16_t x, int16_t y, unsigned char c, uint16_t color, uint16_t bg, uint8_t size);
+    /// Draw a text character at the text cursor location
+    size_t writeChar(uint8_t);
+ 
+    /// Get the width of the display in pixels
+    inline int16_t width(void) { return _width; };
+    /// Get the height of the display in pixels
+    inline int16_t height(void) { return _height; };
+ 
+    /// Set the text cursor location, based on the size of the text
+    inline void setTextCursor(int16_t x, int16_t y) { cursor_x = x; cursor_y = y; };
+#if defined(GFX_WANT_ABSTRACTS) || defined(GFX_SIZEABLE_TEXT)
+    /** Set the size of the text to be drawn
+     * @note Make sure to enable either GFX_SIZEABLE_TEXT or GFX_WANT_ABSTRACTS
+     */
+    inline void setTextSize(uint8_t s) { textsize = (s > 0) ? s : 1; };
+#endif
+    /// Set the text foreground and background colors to be the same
+    inline void setTextColor(uint16_t c) { textcolor = c; textbgcolor = c; }
+    /// Set the text foreground and background colors independantly
+    inline void setTextColor(uint16_t c, uint16_t b) { textcolor = c; textbgcolor = b; };
+    /// Set text wraping mode true or false
+    inline void setTextWrap(bool w) { wrap = w; };
+ 
+    /// Set the display rotation, 1, 2, 3, or 4
+    void setRotation(uint8_t r);
+    /// Get the current rotation
+    inline 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
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_GFX_Config.h	Tue Nov 26 04:49:45 2019 +0000
@@ -0,0 +1,15 @@
+#ifndef _ADAFRUIT_GFX_CONFIG_H_
+#define _ADAFRUIT_GFX_CONFIG_H_
+ 
+// Uncomment this to turn off the builtin splash
+//#define NO_SPLASH_ADAFRUIT
+ 
+// Uncomment this to enable all functionality
+#define GFX_WANT_ABSTRACTS
+ 
+// Uncomment this to enable only runtime font scaling, without all the rest of the Abstracts
+//#define GFX_SIZEABLE_TEXT
+ 
+#define NO_SPLASH_ADAFRUIT
+ 
+#endif
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_SSD1306.cpp	Tue Nov 26 04:49:45 2019 +0000
@@ -0,0 +1,247 @@
+/*********************************************************************
+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 below must be included in any redistribution
+*********************************************************************/
+ 
+/*
+ *  Modified by Neal Horman 7/14/2012 for use in mbed
+ *  Modified by JojoS 03/07/2015
+ *   add flipVertical option to constructor
+ *   add use of 'rst' is optional, maybe NC in constructor
+ *   add command SSD1306_SETPAGESTARTADDRESS to reset page start address (important when no hardware reset is uesed)
+ */
+ 
+#include "mbed.h"
+#include "Adafruit_SSD1306.h"
+ 
+#define SSD1306_SETCONTRAST 0x81
+#define SSD1306_DISPLAYALLON_RESUME 0xA4
+#define SSD1306_DISPLAYALLON 0xA5
+#define SSD1306_NORMALDISPLAY 0xA6
+#define SSD1306_INVERTDISPLAY 0xA7
+#define SSD1306_DISPLAYOFF 0xAE
+#define SSD1306_DISPLAYON 0xAF
+#define SSD1306_SETDISPLAYOFFSET 0xD3
+#define SSD1306_SETCOMPINS 0xDA
+#define SSD1306_SETVCOMDETECT 0xDB
+#define SSD1306_SETDISPLAYCLOCKDIV 0xD5
+#define SSD1306_SETPRECHARGE 0xD9
+#define SSD1306_SETMULTIPLEX 0xA8
+#define SSD1306_SETLOWCOLUMN 0x00
+#define SSD1306_SETHIGHCOLUMN 0x10
+#define SSD1306_SETSTARTLINE 0x40
+#define SSD1306_MEMORYMODE 0x20
+#define SSD1306_COMSCANINC 0xC0
+#define SSD1306_COMSCANDEC 0xC8
+#define SSD1306_SEGREMAP 0xA0
+#define SSD1306_CHARGEPUMP 0x8D
+#define SSD1306_SETPAGESTARTADDRESS 0xB0
+ 
+void Adafruit_SSD1306::begin(uint8_t vccstate)
+{
+    if (rst.is_connected()) {       // reset input is not present on every SSD1306 display board, so usage is optional
+        rst = 1;
+        // VDD (3.3V) goes high at start, lets just chill for a ms
+        wait_ms(1);
+        // bring reset low
+        rst = 0;
+        // wait 10ms
+        wait_ms(10);
+        // bring out of reset
+        rst = 1;
+        // turn on VCC (9V?)
+    }
+ 
+ 
+    command(SSD1306_DISPLAYOFF);
+    command(SSD1306_SETDISPLAYCLOCKDIV);
+    command(0x80);                                  // the suggested ratio 0x80
+ 
+    command(SSD1306_SETMULTIPLEX);
+    command(_rawHeight-1);
+ 
+    command(SSD1306_SETDISPLAYOFFSET);
+    command(0x0);                                   // no offset
+ 
+    command(SSD1306_SETSTARTLINE | 0x0);            // line #0
+ 
+    command(SSD1306_CHARGEPUMP);
+    command((vccstate == SSD1306_EXTERNALVCC) ? 0x10 : 0x14);
+ 
+    command(SSD1306_MEMORYMODE);
+    command(0x00);                                  // 0x0 act like ks0108
+ 
+ 
+    if (flipVertical) {
+        command(SSD1306_SEGREMAP | 0x0);
+        command(SSD1306_COMSCANINC);
+    } else {
+        command(SSD1306_SEGREMAP | 0x1);
+        command(SSD1306_COMSCANDEC);                    // flip vertically
+    }
+ 
+ 
+    command(SSD1306_SETLOWCOLUMN | 0x0);  // low col = 0
+    command(SSD1306_SETHIGHCOLUMN | 0x0);  // hi col = 0
+    command(SSD1306_SETSTARTLINE | 0x0); // line #0
+    command(SSD1306_SETPAGESTARTADDRESS | 0x0);
+ 
+    command(SSD1306_SETCOMPINS);
+    command(_rawHeight == 32 ? 0x02 : 0x12);        // TODO - calculate based on _rawHieght ?
+ 
+    command(SSD1306_SETCONTRAST);
+    command(_rawHeight == 32 ? 0x8F : ((vccstate == SSD1306_EXTERNALVCC) ? 0x9F : 0xCF) );
+ 
+    command(SSD1306_SETPRECHARGE);
+    command((vccstate == SSD1306_EXTERNALVCC) ? 0x22 : 0xF1);
+ 
+    command(SSD1306_SETVCOMDETECT);
+    command(0x40);
+ 
+    command(SSD1306_DISPLAYALLON_RESUME);
+ 
+    command(SSD1306_NORMALDISPLAY);
+ 
+    command(SSD1306_DISPLAYON);
+}
+ 
+// Set a single pixel
+void Adafruit_SSD1306::drawPixel(int16_t x, int16_t y, uint16_t color)
+{
+    if ((x < 0) || (x >= width()) || (y < 0) || (y >= height()))
+        return;
+ 
+    // check rotation, move pixel around if necessary
+    switch (getRotation()) {
+        case 1:
+            swap(x, y);
+            x = _rawWidth - x - 1;
+            break;
+        case 2:
+            x = _rawWidth - x - 1;
+            y = _rawHeight - y - 1;
+            break;
+        case 3:
+            swap(x, y);
+            y = _rawHeight - y - 1;
+            break;
+    }
+ 
+    // x is which column
+    if (color == WHITE)
+        buffer[x+ (y/8)*_rawWidth] |= _BV((y%8));
+    else // else black
+        buffer[x+ (y/8)*_rawWidth] &= ~_BV((y%8));
+}
+ 
+void Adafruit_SSD1306::invertDisplay(bool i)
+{
+    command(i ? SSD1306_INVERTDISPLAY : SSD1306_NORMALDISPLAY);
+}
+ 
+// Send the display buffer out to the display
+void Adafruit_SSD1306::display(void)
+{
+    command(SSD1306_SETLOWCOLUMN | 0x0);  // low col = 0
+    command(SSD1306_SETHIGHCOLUMN | 0x0);  // hi col = 0
+    command(SSD1306_SETSTARTLINE | 0x0); // line #0
+    sendDisplayBuffer();
+}
+ 
+// Clear the display buffer. Requires a display() call at some point afterwards
+void Adafruit_SSD1306::clearDisplay(void)
+{
+    std::fill(buffer.begin(),buffer.end(),0);
+}
+ 
+void Adafruit_SSD1306::splash(void)
+{
+#ifndef NO_SPLASH_ADAFRUIT
+    uint8_t adaFruitLogo[64 * 128 / 8] = {
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
+        0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x80, 0x80, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0xFC, 0xF8, 0xE0, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80,
+        0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x80, 0x00, 0xFF,
+        0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00,
+        0x80, 0xFF, 0xFF, 0x80, 0x80, 0x00, 0x80, 0x80, 0x00, 0x80, 0x80, 0x80, 0x80, 0x00, 0x80, 0x80,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x80, 0x00, 0x00, 0x8C, 0x8E, 0x84, 0x00, 0x00, 0x80, 0xF8,
+        0xF8, 0xF8, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xE0, 0xE0, 0xC0, 0x80,
+        0x00, 0xE0, 0xFC, 0xFE, 0xFF, 0xFF, 0xFF, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFF, 0xC7, 0x01, 0x01,
+        0x01, 0x01, 0x83, 0xFF, 0xFF, 0x00, 0x00, 0x7C, 0xFE, 0xC7, 0x01, 0x01, 0x01, 0x01, 0x83, 0xFF,
+        0xFF, 0xFF, 0x00, 0x38, 0xFE, 0xC7, 0x83, 0x01, 0x01, 0x01, 0x83, 0xC7, 0xFF, 0xFF, 0x00, 0x00,
+        0x01, 0xFF, 0xFF, 0x01, 0x01, 0x00, 0xFF, 0xFF, 0x07, 0x01, 0x01, 0x01, 0x00, 0x00, 0x7F, 0xFF,
+        0x80, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x7F, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x01, 0xFF,
+        0xFF, 0xFF, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x03, 0x0F, 0x3F, 0x7F, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xE7, 0xC7, 0xC7, 0x8F,
+        0x8F, 0x9F, 0xBF, 0xFF, 0xFF, 0xC3, 0xC0, 0xF0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC, 0xFC, 0xFC,
+        0xFC, 0xFC, 0xFC, 0xFC, 0xFC, 0xF8, 0xF8, 0xF0, 0xF0, 0xE0, 0xC0, 0x00, 0x01, 0x03, 0x03, 0x03,
+        0x03, 0x03, 0x01, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01,
+        0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03, 0x03, 0x01, 0x01, 0x03, 0x03, 0x00, 0x00,
+        0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x03, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
+        0x03, 0x03, 0x03, 0x03, 0x03, 0x01, 0x00, 0x00, 0x00, 0x01, 0x03, 0x01, 0x00, 0x00, 0x00, 0x03,
+        0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        // 128x32^^^  128x64vvv
+        0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF9, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x3F, 0x1F, 0x0F,
+        0x87, 0xC7, 0xF7, 0xFF, 0xFF, 0x1F, 0x1F, 0x3D, 0xFC, 0xF8, 0xF8, 0xF8, 0xF8, 0x7C, 0x7D, 0xFF,
+        0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x3F, 0x0F, 0x07, 0x00, 0x30, 0x30, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0xFE, 0xFE, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xC0, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x30, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0xC0, 0xFE, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x7F, 0x3F, 0x1F,
+        0x0F, 0x07, 0x1F, 0x7F, 0xFF, 0xFF, 0xF8, 0xF8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xF8, 0xE0,
+        0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00,
+        0x00, 0xFC, 0xFE, 0xFC, 0x0C, 0x06, 0x06, 0x0E, 0xFC, 0xF8, 0x00, 0x00, 0xF0, 0xF8, 0x1C, 0x0E,
+        0x06, 0x06, 0x06, 0x0C, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00, 0x00, 0x00, 0xFC,
+        0xFE, 0xFC, 0x00, 0x18, 0x3C, 0x7E, 0x66, 0xE6, 0xCE, 0x84, 0x00, 0x00, 0x06, 0xFF, 0xFF, 0x06,
+        0x06, 0xFC, 0xFE, 0xFC, 0x0C, 0x06, 0x06, 0x06, 0x00, 0x00, 0xFE, 0xFE, 0x00, 0x00, 0xC0, 0xF8,
+        0xFC, 0x4E, 0x46, 0x46, 0x46, 0x4E, 0x7C, 0x78, 0x40, 0x18, 0x3C, 0x76, 0xE6, 0xCE, 0xCC, 0x80,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x01, 0x07, 0x0F, 0x1F, 0x1F, 0x3F, 0x3F, 0x3F, 0x3F, 0x1F, 0x0F, 0x03,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00,
+        0x00, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x03, 0x07, 0x0E, 0x0C,
+        0x18, 0x18, 0x0C, 0x06, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x01, 0x0F, 0x0E, 0x0C, 0x18, 0x0C, 0x0F,
+        0x07, 0x01, 0x00, 0x04, 0x0E, 0x0C, 0x18, 0x0C, 0x0F, 0x07, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00,
+        0x00, 0x0F, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x00, 0x07,
+        0x07, 0x0C, 0x0C, 0x18, 0x1C, 0x0C, 0x06, 0x06, 0x00, 0x04, 0x0E, 0x0C, 0x18, 0x0C, 0x0F, 0x07,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+        0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+    };
+ 
+    std::copy(
+        &adaFruitLogo[0]
+        , &adaFruitLogo[0] + (_rawHeight == 32 ? sizeof(adaFruitLogo)/2 : sizeof(adaFruitLogo))
+        , buffer.begin()
+    );
+#endif
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Adafruit_SSD1306.h	Tue Nov 26 04:49:45 2019 +0000
@@ -0,0 +1,212 @@
+/*********************************************************************
+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 mbed
+ */
+ 
+#ifndef _ADAFRUIT_SSD1306_H_
+#define _ADAFRUIT_SSD1306_H_
+ 
+#include "mbed.h"
+#include "Adafruit_GFX.h"
+ 
+#include <vector>
+#include <algorithm>
+ 
+#define SSD1306_EXTERNALVCC 0x1
+#define SSD1306_SWITCHCAPVCC 0x2
+ 
+/** The pure base class for the SSD1306 display driver.
+ *
+ * You should derive from this for a new transport interface type,
+ * such as the SPI and I2C drivers.
+ */
+class Adafruit_SSD1306 : public Adafruit_GFX
+{
+public:
+    Adafruit_SSD1306(PinName RST, uint8_t rawHeight = 32, uint8_t rawWidth = 128, bool _flipVertical=false)
+        : Adafruit_GFX(rawWidth,rawHeight)
+        , rst(RST,false)
+        , flipVertical(_flipVertical)
+    {
+        buffer.resize(rawHeight * rawWidth / 8);
+    };
+ 
+    void begin(uint8_t switchvcc = SSD1306_SWITCHCAPVCC);
+    
+    // These must be implemented in the derived transport driver
+    virtual void command(uint8_t c) = 0;
+    virtual void data(uint8_t c) = 0;
+    virtual void drawPixel(int16_t x, int16_t y, uint16_t color);
+ 
+    /// Clear the display buffer    
+    void clearDisplay(void);
+    virtual void invertDisplay(bool i);
+ 
+    /// Cause the display to be updated with the buffer content.
+    void display();
+    /// Fill the buffer with the AdaFruit splash screen.
+    virtual void splash();
+    
+protected:
+    virtual void sendDisplayBuffer() = 0;
+    DigitalOut rst;
+    bool flipVertical;
+ 
+    // the memory buffer for the LCD
+    std::vector<uint8_t> buffer;
+};
+ 
+ 
+/** This is the SPI SSD1306 display driver transport class
+ *
+ */
+class Adafruit_SSD1306_Spi : public Adafruit_SSD1306
+{
+public:
+    /** Create a SSD1306 SPI transport display driver instance with the specified DC, RST, and CS pins, as well as the display dimentions
+     *
+     * Required parameters
+     * @param spi - a reference to an initialized SPI object
+     * @param DC (Data/Command) pin name
+     * @param RST (Reset) pin name
+     * @param CS (Chip Select) pin name
+     *
+     * Optional parameters
+     * @param rawHeight - the vertical number of pixels for the display, defaults to 32
+     * @param rawWidth - the horizonal number of pixels for the display, defaults to 128
+     */
+    Adafruit_SSD1306_Spi(SPI &spi, PinName DC, PinName RST, PinName CS, uint8_t rawHieght = 32, uint8_t rawWidth = 128, bool flipVertical = false)
+        : Adafruit_SSD1306(RST, rawHieght, rawWidth, flipVertical)
+        , cs(CS,true)
+        , dc(DC,false)
+        , mspi(spi)
+        {
+            begin();
+            splash();
+            display();
+        };
+ 
+    virtual void command(uint8_t c)
+    {
+        cs = 1;
+        dc = 0;
+        cs = 0;
+        mspi.write(c);
+        cs = 1;
+    };
+ 
+    virtual void data(uint8_t c)
+    {
+        cs = 1;
+        dc = 1;
+        cs = 0;
+        mspi.write(c);
+        cs = 1;
+    };
+ 
+protected:
+    virtual void sendDisplayBuffer()
+    {
+        cs = 1;
+        dc = 1;
+        cs = 0;
+ 
+        for(uint16_t i=0, q=buffer.size(); i<q; i++)
+            mspi.write(buffer[i]);
+ 
+        if(height() == 32)
+        {
+            for(uint16_t i=0, q=buffer.size(); i<q; i++)
+                mspi.write(0);
+        }
+ 
+        cs = 1;
+    };
+ 
+    DigitalOut cs, dc;
+    SPI &mspi;
+};
+ 
+/** This is the I2C SSD1306 display driver transport class
+ *
+ */
+class Adafruit_SSD1306_I2c : public Adafruit_SSD1306
+{
+public:
+    #define SSD_I2C_ADDRESS     0x78
+    /** Create a SSD1306 I2C transport display driver instance with the specified RST pin name, the I2C address, as well as the display dimensions
+     *
+     * Required parameters
+     * @param i2c - A reference to an initialized I2C object
+     * @param RST - The Reset pin name
+     *
+     * Optional parameters
+     * @param i2cAddress - The i2c address of the display
+     * @param rawHeight - The vertical number of pixels for the display, defaults to 32
+     * @param rawWidth - The horizonal number of pixels for the display, defaults to 128
+     */
+    Adafruit_SSD1306_I2c(I2C &i2c, PinName RST, uint8_t i2cAddress = SSD_I2C_ADDRESS, uint8_t rawHeight = 32, uint8_t rawWidth = 128, bool flipVertical = false)
+        : Adafruit_SSD1306(RST, rawHeight, rawWidth, flipVertical)
+        , mi2c(i2c)
+        , mi2cAddress(i2cAddress)
+        {
+            begin();
+            splash();
+            display();
+        };
+ 
+    virtual void command(uint8_t c)
+    {
+        char buff[2];
+        buff[0] = 0; // Command Mode
+        buff[1] = c;
+        mi2c.write(mi2cAddress, buff, sizeof(buff));
+    }
+ 
+    virtual void data(uint8_t c)
+    {
+        char buff[2];
+        buff[0] = 0x40; // Data Mode
+        buff[1] = c;
+        mi2c.write(mi2cAddress, buff, sizeof(buff));
+    };
+ 
+protected:
+    virtual void sendDisplayBuffer()
+    {
+        char buff[17];
+        buff[0] = 0x40; // Data Mode
+ 
+        // send display buffer in 16 byte chunks
+        for(uint16_t i=0, q=buffer.size(); i<q; i+=16 ) 
+        {   uint8_t x ;
+ 
+            // TODO - this will segfault if buffer.size() % 16 != 0
+            for(x=1; x<sizeof(buff); x++) 
+                buff[x] = buffer[i+x-1];
+            mi2c.write(mi2cAddress, buff, sizeof(buff));
+        }
+    };
+ 
+    I2C &mi2c;
+    uint8_t mi2cAddress;
+};
+ 
+#endif
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/glcdfont.h	Tue Nov 26 04:49:45 2019 +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
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Nov 26 04:49:45 2019 +0000
@@ -0,0 +1,147 @@
+#include "Adafruit_SSD1306.h"
+
+//---
+#include "mbed.h"
+
+AnalogIn analog_value(A0);
+DigitalOut led(LED1);
+//---
+
+static char font[][10] = {
+#if 0
+{0x10,0x10,0x54,0x52,0x92,0x10,0x30,0x00},    // 小
+{0x3c,0x24,0x58,0x10,0x3e,0xd2,0x1e,0x00},    // 名
+{0x10,0xfe,0x10,0x38,0x54,0x92,0x10,0x00},    // 木
+{0x98,0x1c,0xa8,0x3e,0x80,0x9c,0x9c,0x00},    // 浩
+{0x10,0x7c,0xfe,0x28,0xfe,0x7c,0x10,0x00},    // 幸
+{0x7e,0x40,0x7c,0x42,0x02,0x42,0x3c,0x00},    // 5
+{0x3c,0x42,0x02,0x1c,0x02,0x42,0x3c,0x00},    // 3
+{0x08,0xfe,0x08,0x0c,0x18,0xe8,0x18,0x00},    // 才
+#endif
+#if 1
+{0x08,0xfe,0x08,0x0c,0x18,0xe8,0x18,0x00},    // 才
+{0x3c,0x42,0x02,0x1c,0x02,0x42,0x3c,0x00},    // 3
+{0x7e,0x40,0x7c,0x42,0x02,0x42,0x3c,0x00},    // 5
+{0x10,0x7c,0xfe,0x28,0xfe,0x7c,0x10,0x00},    // 幸
+{0x98,0x1c,0xa8,0x3e,0x80,0x9c,0x9c,0x00},    // 浩
+{0x10,0xfe,0x10,0x38,0x54,0x92,0x10,0x00},    // 木
+{0x3c,0x24,0x58,0x10,0x3e,0xd2,0x1e,0x00},    // 名
+{0x10,0x10,0x54,0x52,0x92,0x10,0x30,0x00},    // 小
+#endif
+};
+
+ 
+// OLEDとの通信に使用するI2Cオブジェクトを生成
+I2C i2c(PC_1, PC_0);
+ 
+// OLED制御クラスのインスタンス化
+uint8_t i2cAddress = SSD_I2C_ADDRESS;
+uint8_t rawHeight = 64;
+uint8_t rawWidth = 128;
+
+Adafruit_SSD1306_I2c oled(i2c,PB_0, i2cAddress, rawHeight, rawWidth);
+
+unsigned int m_z=12434,m_w=33254;
+unsigned int rnd() {
+    m_z = 36969 * (m_z & 65535) + (m_z >>16);
+    m_w = 18000 * (m_w & 65535) + (m_w >>16);
+    return ((m_z <<16) + m_w);
+}
+
+int main() {
+    uint16_t x=0;
+    uint16_t x1, y1, w, h;
+    i2c.frequency(1000000);
+    oled.clearDisplay();
+
+//---
+    float meas_r;
+    float meas_v;
+    char str[100];
+    // printf("\nAnalogIn example\n");
+
+    while(1) {
+
+        meas_r = analog_value.read(); // Read the analog input value (value from 0.0 to 1.0 = full ADC conversion range)
+        meas_v = meas_r * 3300; // Converts value in the 0V-3.3V range
+
+        sprintf( str, "%f = %.0f mV", meas_r, meas_v);
+        oled.setTextCursor(0,0);
+        oled.printf( str );
+        oled.display();
+        // Display values
+        // printf("measure = %f = %.0f mV\n", meas_r, meas_v);
+
+        // LED is ON is the value is below 1V
+        if (meas_v < 1000) {
+            led = 1; // LED ON
+        } else {
+            led = 0; // LED OFF
+        }
+
+        wait(0.5); // 1 second
+    }
+//---
+
+
+//    oled.printf("Onagi Hiropyuki.\r\n");
+//    oled.printf("%ux%u OLED Display\r\n\r\n", oled.width(), oled.height());
+if(1){
+    while(1) {
+    for (int  i=0 ; i<120 ; i+=1 ) {
+        //oled.clearDisplay();
+        oled.drawBitmap(i, 0, (uint8_t *)font, 10, 64, 1);
+        oled.display();
+        oled.drawBitmap(i, 0, (uint8_t *)font, 10, 64, 0);
+
+    }
+    for (int  i=120 ; i>0 ; i-=1 ) {
+        //oled.clearDisplay();
+        oled.drawBitmap(i, 0, (uint8_t *)font, 10, 64, 1);
+        oled.display();
+        oled.drawBitmap(i, 0, (uint8_t *)font, 10, 64, 0);
+    }
+    }
+    return 0;
+
+}
+
+    oled.drawRect( 0,0,127,63,1 );
+           
+    while(1)
+    {
+        x++;
+        x1 = rnd() % 128;
+        y1 = rnd() % 64;
+        w = rnd() % (128 - x1);
+        h = rnd() % (64 - y1);
+        if ( x % 2 ) {
+            //oled.drawRect( x1, y1, w, h, 1 );
+            oled.drawBitmap(x1, y1, (uint8_t *)font, 82, 8, 1);
+        } else {
+            oled.drawCircle( x1, y1, w, 1 );
+        }
+
+        oled.display();
+        if ( x > 100 ) {
+            x = 0;
+        }
+        wait(0.5);
+        oled.clearDisplay();
+    }
+}
+
+/*
+#include "mbed.h"
+
+DigitalOut myled(LED1);
+
+int main() {
+    while(1) {
+        myled = 1; // LED is ON
+        wait(0.2); // 200 ms
+        myled = 0; // LED is OFF
+        wait(1.0); // 1 sec
+    }
+}
+*/
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue Nov 26 04:49:45 2019 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file