diff --git a/libraries/u8glib/u8g_pb8v1.c b/libraries/u8glib/u8g_pb8v1.c
deleted file mode 100644
--- a/libraries/u8glib/u8g_pb8v1.c
+++ /dev/null
@@ -1,184 +0,0 @@
-/*
-
-  u8g_pb8v1.c
-  
-  8bit height monochrom (1 bit) page buffer
-  byte has vertical orientation
-
-  Universal 8bit Graphics Library
-  
-  Copyright (c) 2011, olikraus@gmail.com
-  All rights reserved.
-
-  Redistribution and use in source and binary forms, with or without modification, 
-  are permitted provided that the following conditions are met:
-
-  * Redistributions of source code must retain the above copyright notice, this list 
-    of conditions and the following disclaimer.
-    
-  * Redistributions in binary form must reproduce the above copyright notice, this 
-    list of conditions and the following disclaimer in the documentation and/or other 
-    materials provided with the distribution.
-
-  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
-  CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
-  INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
-  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
-  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
-  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
-  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
-  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
-  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
-  CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
-  STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
-  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
-  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
-  
-
-*/
-
-#include "u8g.h"
-#include <string.h>
-
-
-void u8g_pb8v1_Init(u8g_pb_t *b, void *buf, u8g_uint_t width) U8G_NOINLINE;
-void u8g_pb8v1_set_pixel(u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y, uint8_t color_index) U8G_NOINLINE;
-void u8g_pb8v1_SetPixel(u8g_pb_t *b, const u8g_dev_arg_pixel_t * const arg_pixel) U8G_NOINLINE ;
-void u8g_pb8v1_Set8PixelStd(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel) U8G_NOINLINE;
-
-/* Obsolete, usually set by the init of the structure */
-void u8g_pb8v1_Init(u8g_pb_t *b, void *buf, u8g_uint_t width)
-{
-  b->buf = buf;
-  b->width = width;
-  u8g_pb_Clear(b);
-}
-
-void u8g_pb8v1_set_pixel(u8g_pb_t *b, u8g_uint_t x, u8g_uint_t y, uint8_t color_index)
-{
-  register uint8_t mask;
-  uint8_t *ptr = b->buf;
-  
-  y -= b->p.page_y0;
-  mask = 1;
-  y &= 0x07;
-  mask <<= y;
-  ptr += x;
-  if ( color_index )
-  {
-    *ptr |= mask;
-  }
-  else
-  {
-    mask ^=0xff;
-    *ptr &= mask;
-  }
-}
-
-
-void u8g_pb8v1_SetPixel(u8g_pb_t *b, const u8g_dev_arg_pixel_t * const arg_pixel)
-{
-  if ( arg_pixel->y < b->p.page_y0 )
-    return;
-  if ( arg_pixel->y > b->p.page_y1 )
-    return;
-  if ( arg_pixel->x >= b->width )
-    return;
-  u8g_pb8v1_set_pixel(b, arg_pixel->x, arg_pixel->y, arg_pixel->color);
-}
-
-void u8g_pb8v1_Set8PixelStd(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel)
-{
-  register uint8_t pixel = arg_pixel->pixel;
-  do
-  {
-    if ( pixel & 128 )
-    {
-      u8g_pb8v1_SetPixel(b, arg_pixel);
-    }
-    switch( arg_pixel->dir )
-    {
-      case 0: arg_pixel->x++; break;
-      case 1: arg_pixel->y++; break;
-      case 2: arg_pixel->x--; break;
-      case 3: arg_pixel->y--; break;
-    }
-    pixel <<= 1;
-  } while( pixel != 0  );
-}
-
-
-void u8g_pb8v1_Set8PixelOpt2(u8g_pb_t *b, u8g_dev_arg_pixel_t *arg_pixel)
-{
-  register uint8_t pixel = arg_pixel->pixel;
-  u8g_uint_t dx = 0;
-  u8g_uint_t dy = 0;
-  
-  switch( arg_pixel->dir )
-  {
-    case 0: dx++; break;
-    case 1: dy++; break;
-    case 2: dx--; break;
-    case 3: dy--; break;
-  }
-  
-  do
-  {
-    if ( pixel & 128 )
-      u8g_pb8v1_SetPixel(b, arg_pixel);
-    arg_pixel->x += dx;
-    arg_pixel->y += dy;
-    pixel <<= 1;
-  } while( pixel != 0  );
-  
-}
-
-uint8_t u8g_dev_pb8v1_base_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
-{
-  u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
-  switch(msg)
-  {
-    case U8G_DEV_MSG_SET_8PIXEL:
-      if ( u8g_pb_Is8PixelVisible(pb, (u8g_dev_arg_pixel_t *)arg) )
-        u8g_pb8v1_Set8PixelOpt2(pb, (u8g_dev_arg_pixel_t *)arg);
-      break;
-    case U8G_DEV_MSG_SET_PIXEL:
-        u8g_pb8v1_SetPixel(pb, (u8g_dev_arg_pixel_t *)arg);
-      break;
-    case U8G_DEV_MSG_INIT:
-      break;
-    case U8G_DEV_MSG_STOP:
-      break;
-    case U8G_DEV_MSG_PAGE_FIRST:
-      u8g_pb_Clear(pb);
-      u8g_page_First(&(pb->p));
-      break;
-    case U8G_DEV_MSG_PAGE_NEXT:
-      if ( u8g_page_Next(&(pb->p)) == 0 )
-        return 0;
-      u8g_pb_Clear(pb);
-      break;
-#ifdef U8G_DEV_MSG_IS_BBX_INTERSECTION
-    case U8G_DEV_MSG_IS_BBX_INTERSECTION:
-      return u8g_pb_IsIntersection(pb, (u8g_dev_arg_bbx_t *)arg);
-#endif
-    case U8G_DEV_MSG_GET_PAGE_BOX:
-      u8g_pb_GetPageBox(pb, (u8g_box_t *)arg);
-      break;
-    case U8G_DEV_MSG_GET_WIDTH:
-      *((u8g_uint_t *)arg) = pb->width;
-      break;
-    case U8G_DEV_MSG_GET_HEIGHT:
-      *((u8g_uint_t *)arg) = pb->p.total_height;
-      break;
-    case U8G_DEV_MSG_SET_COLOR_ENTRY:
-      break;
-    case U8G_DEV_MSG_SET_XY_CB:
-      break;
-    case U8G_DEV_MSG_GET_MODE:
-      return U8G_MODE_BW;
-  }
-  return 1;
-}
- 
-