From 1292d735baa8106996d7c2b545e0f4470624375d Mon Sep 17 00:00:00 2001
From: Robert F-C <rfairliecuninghame@yahoo.com>
Date: Thu, 28 Feb 2013 02:04:51 +1100
Subject: [PATCH] Converge all I2C LCD branches (PANELOLU2, VIKI & PCF8575)

This includes refactoring the buttons code to remove a large amount of
non-pin dependent duplication from pins.h.
---
 Marlin/Configuration.h                        |   61 +-
 Marlin/Marlin.pde                             |   16 +-
 Marlin/Marlin_main.cpp                        |   22 +-
 Marlin/pins.h                                 |  105 +-
 Marlin/ultralcd.cpp                           |    9 +
 Marlin/ultralcd.h                             |   21 +-
 .../ultralcd_implementation_hitachi_HD44780.h | 1205 ++++++++++-------
 7 files changed, 765 insertions(+), 674 deletions(-)

diff --git a/Marlin/Configuration.h b/Marlin/Configuration.h
index d47b24cc46..e88515b5ec 100644
--- a/Marlin/Configuration.h
+++ b/Marlin/Configuration.h
@@ -306,12 +306,21 @@ const bool Z_ENDSTOPS_INVERTING = true; // set to true to invert the logic of th
 // please keep turned on if you can.
 //#define EEPROM_CHITCHAT
 
+// Preheat Constants
+#define PLA_PREHEAT_HOTEND_TEMP 180 
+#define PLA_PREHEAT_HPB_TEMP 70
+#define PLA_PREHEAT_FAN_SPEED 255		// Insert Value between 0 and 255
+
+#define ABS_PREHEAT_HOTEND_TEMP 240
+#define ABS_PREHEAT_HPB_TEMP 100
+#define ABS_PREHEAT_FAN_SPEED 255		// Insert Value between 0 and 255
+
 //LCD and SD support
 //#define ULTRA_LCD  //general lcd support, also 16x2
 //#define SDSUPPORT // Enable SD Card Support in Hardware Console
 
 //#define ULTIMAKERCONTROLLER //as available from the ultimaker online store.
-//#define ULTIPANEL  //the ultipanel as on thingiverse
+#define ULTIPANEL  //the ultipanel as on thingiverse
 
 // The RepRapDiscount Smart Controller (white PCB)
 // http://reprap.org/wiki/RepRapDiscount_Smart_Controller
@@ -327,15 +336,42 @@ const bool Z_ENDSTOPS_INVERTING = true; // set to true to invert the logic of th
  #define NEWPANEL
 #endif 
 
-// Preheat Constants
-#define PLA_PREHEAT_HOTEND_TEMP 180 
-#define PLA_PREHEAT_HPB_TEMP 70
-#define PLA_PREHEAT_FAN_SPEED 255		// Insert Value between 0 and 255
+// I2C PANELS
 
-#define ABS_PREHEAT_HOTEND_TEMP 240
-#define ABS_PREHEAT_HPB_TEMP 100
-#define ABS_PREHEAT_FAN_SPEED 255		// Insert Value between 0 and 255
+#define LCD_I2C_SAINSMART_YWROBOT
+#ifdef LCD_I2C_SAINSMART_YWROBOT
+  // This uses the LiquidCrystal_I2C library ( https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/Home )
+  // Make sure it is placed in the Arduino libraries directory.
+  #define LCD_I2C_TYPE_PCF8575
+  #define ULTIPANEL
+  #define NEWPANEL
+  #define LCD_I2C_ADDRESS 0x27   // I2C Address of the port expander
+#endif
 
+// PANELOLU2 LCD with status LEDs, separate encoder and click inputs
+//#define LCD_I2C_PANELOLU2
+#ifdef LCD_I2C_PANELOLU2
+  // This uses the LiquidTWI2 library ( https://github.com/lincomatic/LiquidTWI2 ).
+  // Make sure it is placed in the Arduino libraries directory.
+  #define LCD_I2C_TYPE_MCP23017
+  #define ULTIPANEL
+  #define NEWPANEL
+  #define LCD_I2C_ADDRESS 0x20
+  #define LCD_HAS_I2C_BUZZ //comment out to disable buzzer on LCD
+  #define LCD_HAS_STATUS_INDICATORS  
+#endif
+
+// VIKI LCD with status LEDs, integrated click & L/R/U/P buttons, separate encoder inputs
+//#define LCD_I2C_VIKI
+#ifdef LCD_I2C_VIKI
+  // This uses the LiquidTWI2 library (https://github.com/lincomatic/LiquidTWI2).
+  // Make sure it is placed in the Arduino libraries directory.
+  #define LCD_I2C_TYPE_MCP23017
+  #define ULTIPANEL
+  #define NEWPANEL
+  #define LCD_I2C_ADDRESS 0x20
+  #define LCD_HAS_STATUS_INDICATORS  
+#endif
 
 #ifdef ULTIPANEL
 //  #define NEWPANEL  //enable this if you have a click-encoder panel
@@ -351,15 +387,6 @@ const bool Z_ENDSTOPS_INVERTING = true; // set to true to invert the logic of th
   #endif
 #endif
 
-//The LCD is attached via an I2C port expander.
-//#define LCD_I2C
-#ifdef LCD_I2C
-  // Port Expander Type - 0=PCF8574 sainsmart/ywrobot
-  #define LCD_I2C_TYPE 0
-  // I2C Address of the port expander
-  #define LCD_I2C_ADDRESS 0x27
-#endif
-
 // Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
diff --git a/Marlin/Marlin.pde b/Marlin/Marlin.pde
index 6602f6c862..93a6504cb6 100644
--- a/Marlin/Marlin.pde
+++ b/Marlin/Marlin.pde
@@ -36,7 +36,21 @@
 #ifdef ULTRA_LCD
   #ifdef LCD_I2C
     #include <Wire.h>
-    #include <LiquidCrystal_I2C.h>
+    #if defined(LCD_I2C_TYPE_PCF8575)
+      #include <LiquidCrystal_I2C.h>
+    #elif defined(LCD_I2C_TYPE_MCP23017)
+      #ifdef PANELOLU2
+        #undef PANELOLU2
+        #include <LiquidTWI2.h>
+        #ifndef PANELOLU2
+          #error You must uncomment #define PANELOLU2 in LiquidTWI2.h for LiquidTWI2.cpp to compile correctly
+        #endif
+      #else
+        #include <LiquidTWI2.h>
+      #endif
+    #else
+      #error Unknown I2C LCD type    
+    #endif
   #else
     #include <LiquidCrystal.h>
   #endif
diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp
index 39efdf4545..2f2d449c9c 100644
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -124,7 +124,7 @@
 // M500 - stores paramters in EEPROM
 // M501 - reads parameters from EEPROM (if you need reset them after you changed them temporarily).  
 // M502 - reverts to the default "factory settings".  You still need to store them in EEPROM afterwards if you want to.
-// M503 - print the current settings (from memory not from eeprom)
+// M503 - print the current settings (from memory not from eeprom)
 // M540 - Use S[0|1] to enable or disable the stop SD card print on endstop hit (requires ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED)
 // M600 - Pause for filament change X[pos] Y[pos] Z[relative lift] E[initial retract] L[later retract distance for removal]
 // M907 - Set digital trimpot motor current using axis codes.
@@ -853,13 +853,13 @@ void process_commands()
       previous_millis_cmd = millis();
       if (codenum > 0){
         codenum += millis();  // keep track of when we started waiting
-        while(millis()  < codenum && !LCD_CLICKED){
+        while(millis()  < codenum && !lcd_clicked()){
           manage_heater();
           manage_inactivity();
           lcd_update();
         }
       }else{
-        while(!LCD_CLICKED){
+        while(!lcd_clicked()){
           manage_heater();
           manage_inactivity();
           lcd_update();
@@ -1499,13 +1499,13 @@ void process_commands()
     {
         Config_PrintSettings();
     }
-    break;
-    #ifdef ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED
-    case 540:
-    {
-        if(code_seen('S')) abort_on_endstop_hit = code_value() > 0;
-    }
-    break;
+    break;
+    #ifdef ABORT_ON_ENDSTOP_HIT_FEATURE_ENABLED
+    case 540:
+    {
+        if(code_seen('S')) abort_on_endstop_hit = code_value() > 0;
+    }
+    break;
     #endif
     #ifdef FILAMENTCHANGEENABLE
     case 600: //Pause for filament change X[pos] Y[pos] Z[relative lift] E[initial retract] L[later retract distance for removal]
@@ -1592,7 +1592,7 @@ void process_commands()
         delay(100);
         LCD_ALERTMESSAGEPGM(MSG_FILAMENTCHANGE);
         uint8_t cnt=0;
-        while(!LCD_CLICKED){
+        while(!lcd_clicked()){
           cnt++;
           manage_heater();
           manage_inactivity();
diff --git a/Marlin/pins.h b/Marlin/pins.h
index 41aae2e221..d81b3abb60 100644
--- a/Marlin/pins.h
+++ b/Marlin/pins.h
@@ -290,15 +290,6 @@
     #define BTN_EN1 11
     #define BTN_EN2 10
     #define BTN_ENC 12  //the click
-    
-    #define BLEN_C 2
-    #define BLEN_B 1
-    #define BLEN_A 0
-
-    #define encrot0 0
-    #define encrot1 2
-    #define encrot2 3
-    #define encrot3 1
 #endif
 
 /****************************************************************************************
@@ -384,16 +375,6 @@
 #ifdef ULTRA_LCD
 
   #ifdef NEWPANEL
-     //encoder rotation values
-    #define encrot0 0
-    #define encrot1 2
-    #define encrot2 3
-    #define encrot3 1
-
-    #define BLEN_A 0
-    #define BLEN_B 1
-    #define BLEN_C 2
-
     #define LCD_PINS_RS 16 
     #define LCD_PINS_ENABLE 17
     #define LCD_PINS_D4 23
@@ -427,7 +408,7 @@
 
   #else //old style panel with shift register
     //arduino pin witch triggers an piezzo beeper
-    #define BEEPER 33		No Beeper added
+    #define BEEPER 33		// No Beeper added 
 
     //buttons are attached to a shift register
 	// Not wired this yet
@@ -442,25 +423,6 @@
     #define LCD_PINS_D5 25 
     #define LCD_PINS_D6 27
     #define LCD_PINS_D7 29
-    
-    //encoder rotation values
-    #define encrot0 0
-    #define encrot1 2
-    #define encrot2 3
-    #define encrot3 1
-
-    
-    //bits in the shift register that carry the buttons for:
-    // left up center down right red
-    #define BL_LE 7
-    #define BL_UP 6
-    #define BL_MI 5
-    #define BL_DW 4
-    #define BL_RI 3
-    #define BL_ST 2
-
-    #define BLEN_B 1
-    #define BLEN_A 0
   #endif 
 #endif //ULTRA_LCD
 
@@ -735,23 +697,12 @@
      #define LCD_PINS_D7        27
      
      //The encoder and click button
-     #define BTN_EN1 11  //must be a hardware interrupt pin
-     #define BTN_EN2 10 //must be hardware interrupt pin
+     #define BTN_EN1 11  
+     #define BTN_EN2 10 
      #define BTN_ENC 16  //the switch
      //not connected to a pin
-     #define SDCARDDETECT -1
-     
-     //from the same bit in the RAMPS Newpanel define
-     //encoder rotation values
-     #define encrot0 0
-     #define encrot1 2
-     #define encrot2 3
-     #define encrot3 1
-     
-     #define BLEN_C 2
-     #define BLEN_B 1
-     #define BLEN_A 0
-     
+     #define SDCARDDETECT -1    
+    
    #endif //Newpanel
  #endif //Ultipanel
  
@@ -834,17 +785,8 @@
     #define BTN_EN2 42
     #define BTN_ENC 19  //the click
     
-    #define BLEN_C 2
-    #define BLEN_B 1
-    #define BLEN_A 0
-    
     #define SDCARDDETECT 38
     
-      //encoder rotation values
-    #define encrot0 0
-    #define encrot1 2
-    #define encrot2 3
-    #define encrot3 1
   #else //old style panel with shift register
     //arduino pin witch triggers an piezzo beeper
     #define BEEPER 18
@@ -861,33 +803,8 @@
     #define LCD_PINS_D5 21 
     #define LCD_PINS_D6 20
     #define LCD_PINS_D7 19
-    
-    //encoder rotation values
-    #ifndef ULTIMAKERCONTROLLER
-     #define encrot0 0
-     #define encrot1 2
-     #define encrot2 3
-     #define encrot3 1
-    #else
-     #define encrot0 0
-     #define encrot1 1
-     #define encrot2 3
-     #define encrot3 2
-
-    #endif
-
+  
     #define SDCARDDETECT -1
-    //bits in the shift register that carry the buttons for:
-    // left up center down right red
-    #define BL_LE 7
-    #define BL_UP 6
-    #define BL_MI 5
-    #define BL_DW 4
-    #define BL_RI 3
-    #define BL_ST 2
-
-    #define BLEN_B 1
-    #define BLEN_A 0
   #endif 
 #endif //ULTRA_LCD
 
@@ -1455,17 +1372,7 @@
     #define BTN_EN2 64
     #define BTN_ENC 43  //the click
     
-    #define BLEN_C 2
-    #define BLEN_B 1
-    #define BLEN_A 0
-    
     #define SDCARDDETECT -1		// Ramps does not use this port
-    
-      //encoder rotation values
-    #define encrot0 0
-    #define encrot1 2
-    #define encrot2 3
-    #define encrot3 1
 #endif
 #endif //ULTRA_LCD
 
diff --git a/Marlin/ultralcd.cpp b/Marlin/ultralcd.cpp
index db2d2766ca..8e223ed00f 100644
--- a/Marlin/ultralcd.cpp
+++ b/Marlin/ultralcd.cpp
@@ -714,6 +714,10 @@ void lcd_update()
     
     lcd_buttons_update();
     
+    #ifdef LCD_HAS_EXTRA_BUTTONS
+    buttons |= lcd_read_extra_buttons(); // buttons which take too long to read in interrupt context
+    #endif
+    
     #if (SDCARDDETECT > -1)
     if((IS_SD_INSERTED != lcd_oldcardstatus))
     {
@@ -858,6 +862,11 @@ void lcd_buttons_update()
 }
 #endif//ULTIPANEL
 
+bool lcd_clicked() 
+{ 
+  return LCD_CLICKED;
+}
+
 /********************************/
 /** Float conversion utilities **/
 /********************************/
diff --git a/Marlin/ultralcd.h b/Marlin/ultralcd.h
index df7746a1ab..40116d762b 100644
--- a/Marlin/ultralcd.h
+++ b/Marlin/ultralcd.h
@@ -20,7 +20,6 @@
 
   #ifdef ULTIPANEL
   void lcd_buttons_update();
-  extern volatile uint8_t buttons;  //the last checked buttons in a bit array.
   #else
   FORCE_INLINE void lcd_buttons_update() {}
   #endif
@@ -33,25 +32,7 @@
   extern int absPreheatHPBTemp;
   extern int absPreheatFanSpeed;
     
-  #ifdef NEWPANEL
-    #define EN_C (1<<BLEN_C)
-    #define EN_B (1<<BLEN_B)
-    #define EN_A (1<<BLEN_A)
-
-    #define LCD_CLICKED (buttons&EN_C)
-  #else
-    //atomatic, do not change
-    #define B_LE (1<<BL_LE)
-    #define B_UP (1<<BL_UP)
-    #define B_MI (1<<BL_MI)
-    #define B_DW (1<<BL_DW)
-    #define B_RI (1<<BL_RI)
-    #define B_ST (1<<BL_ST)
-    #define EN_B (1<<BLEN_B)
-    #define EN_A (1<<BLEN_A)
-    
-    #define LCD_CLICKED ((buttons&B_MI)||(buttons&B_ST))
-  #endif//NEWPANEL
+  bool lcd_clicked();
 
 #else //no lcd
   FORCE_INLINE void lcd_update() {}
diff --git a/Marlin/ultralcd_implementation_hitachi_HD44780.h b/Marlin/ultralcd_implementation_hitachi_HD44780.h
index 81195d21e5..651b1484cf 100644
--- a/Marlin/ultralcd_implementation_hitachi_HD44780.h
+++ b/Marlin/ultralcd_implementation_hitachi_HD44780.h
@@ -1,526 +1,679 @@
-#ifndef ULTRA_LCD_IMPLEMENTATION_HITACHI_HD44780_H
-#define ULTRA_LCD_IMPLEMENTATION_HITACHI_HD44780_H
-
-/**
-* Implementation of the LCD display routines for a hitachi HD44780 display. These are common LCD character displays.
-* When selecting the rusian language, a slightly different LCD implementation is used to handle UTF8 characters.
-**/
-
-#if LANGUAGE_CHOICE == 6
-  #include "LiquidCrystalRus.h"
-  #define LCD_CLASS LiquidCrystalRus
-#else
-  #ifdef LCD_I2C
-    #if LCD_I2C_TYPE = 0
-      #define LCD_I2C_PIN_BL  3
-      #define LCD_I2C_PIN_EN  2
-      #define LCD_I2C_PIN_RW  1
-      #define LCD_I2C_PIN_RS  0
-      #define LCD_I2C_PIN_D4  4
-      #define LCD_I2C_PIN_D5  5
-      #define LCD_I2C_PIN_D6  6
-      #define LCD_I2C_PIN_D7  7
-    #endif
-
-    #include <Wire.h>
-    #include <LCD.h>
-    #include <LiquidCrystal_I2C.h>
-    #define LCD_CLASS LiquidCrystal_I2C
-  #else
-    #include <LiquidCrystal.h>
-    #define LCD_CLASS LiquidCrystal
-  #endif
-#endif
-
-/* Custom characters defined in the first 8 characters of the LCD */
-#define LCD_STR_BEDTEMP     "\x00"
-#define LCD_STR_DEGREE      "\x01"
-#define LCD_STR_THERMOMETER "\x02"
-#define LCD_STR_UPLEVEL     "\x03"
-#define LCD_STR_REFRESH     "\x04"
-#define LCD_STR_FOLDER      "\x05"
-#define LCD_STR_FEEDRATE    "\x06"
-#define LCD_STR_CLOCK       "\x07"
-#define LCD_STR_ARROW_RIGHT "\x7E"  /* from the default character set */
-
-#ifdef LCD_I2C
-  LCD_CLASS lcd(LCD_I2C_ADDRESS,LCD_I2C_PIN_EN,LCD_I2C_PIN_RW,LCD_I2C_PIN_RS,LCD_I2C_PIN_D4,LCD_I2C_PIN_D5,LCD_I2C_PIN_D6,LCD_I2C_PIN_D7);
-#else
-  LCD_CLASS lcd(LCD_PINS_RS, LCD_PINS_ENABLE, LCD_PINS_D4, LCD_PINS_D5,LCD_PINS_D6,LCD_PINS_D7);  //RS,Enable,D4,D5,D6,D7
-#endif
-
-static void lcd_implementation_init()
-{
-    byte bedTemp[8] =
-    {
-        B00000,
-        B11111,
-        B10101,
-        B10001,
-        B10101,
-        B11111,
-        B00000,
-        B00000
-    }; //thanks Sonny Mounicou
-    byte degree[8] =
-    {
-        B01100,
-        B10010,
-        B10010,
-        B01100,
-        B00000,
-        B00000,
-        B00000,
-        B00000
-    };
-    byte thermometer[8] =
-    {
-        B00100,
-        B01010,
-        B01010,
-        B01010,
-        B01010,
-        B10001,
-        B10001,
-        B01110
-    };
-    byte uplevel[8]={
-        B00100,
-        B01110,
-        B11111,
-        B00100,
-        B11100,
-        B00000,
-        B00000,
-        B00000
-    }; //thanks joris
-    byte refresh[8]={
-        B00000,
-        B00110,
-        B11001,
-        B11000,
-        B00011,
-        B10011,
-        B01100,
-        B00000,
-    }; //thanks joris
-    byte folder [8]={
-        B00000,
-        B11100,
-        B11111,
-        B10001,
-        B10001,
-        B11111,
-        B00000,
-        B00000
-    }; //thanks joris
-    byte feedrate [8]={
-        B11100,
-        B10000,
-        B11000,
-        B10111,
-        B00101,
-        B00110,
-        B00101,
-        B00000
-    }; //thanks Sonny Mounicou
-    byte clock [8]={
-        B00000,
-        B01110,
-        B10011,
-        B10101,
-        B10001,
-        B01110,
-        B00000,
-        B00000
-    }; //thanks Sonny Mounicou
-
-    #ifdef LCD_I2C
-        #ifdef LCD_I2C_PIN_BL
-            lcd.setBacklightPin(LCD_I2C_PIN_BL,POSITIVE);
-            lcd.setBacklight(HIGH);
-        #endif
-    #endif
-
-    lcd.begin(LCD_WIDTH, LCD_HEIGHT);
-    lcd.createChar(LCD_STR_BEDTEMP[0], bedTemp);
-    lcd.createChar(LCD_STR_DEGREE[0], degree);
-    lcd.createChar(LCD_STR_THERMOMETER[0], thermometer);
-    lcd.createChar(LCD_STR_UPLEVEL[0], uplevel);
-    lcd.createChar(LCD_STR_REFRESH[0], refresh);
-    lcd.createChar(LCD_STR_FOLDER[0], folder);
-    lcd.createChar(LCD_STR_FEEDRATE[0], feedrate);
-    lcd.createChar(LCD_STR_CLOCK[0], clock);
-    lcd.clear();
-}
-static void lcd_implementation_clear()
-{
-    lcd.clear();
-}
-/* Arduino < 1.0.0 is missing a function to print PROGMEM strings, so we need to implement our own */
-static void lcd_printPGM(const char* str)
-{
-    char c;
-    while((c = pgm_read_byte(str++)) != '\0')
-    {
-        lcd.write(c);
-    }
-}
-/*
-Possible status screens:
-16x2   |0123456789012345|
-       |000/000 B000/000|
-       |Status line.....|
-
-16x4   |0123456789012345|
-       |000/000 B000/000|
-       |SD100%    Z000.0|
-       |F100%     T--:--|
-       |Status line.....|
-
-20x2   |01234567890123456789|
-       |T000/000D B000/000D |
-       |Status line.........|
-
-20x4   |01234567890123456789|
-       |T000/000D B000/000D |
-       |X+000.0 Y+000.0 Z+000.0|
-       |F100%  SD100% T--:--|
-       |Status line.........|
-
-20x4   |01234567890123456789|
-       |T000/000D B000/000D |
-       |T000/000D     Z000.0|
-       |F100%  SD100% T--:--|
-       |Status line.........|
-*/
-static void lcd_implementation_status_screen()
-{
-    int tHotend=int(degHotend(0) + 0.5);
-    int tTarget=int(degTargetHotend(0) + 0.5);
-
-#if LCD_WIDTH < 20
-    lcd.setCursor(0, 0);
-    lcd.print(itostr3(tHotend));
-    lcd.print('/');
-    lcd.print(itostr3left(tTarget));
-
-# if EXTRUDERS > 1 || TEMP_SENSOR_BED != 0
-    //If we have an 2nd extruder or heated bed, show that in the top right corner
-    lcd.setCursor(8, 0);
-#  if EXTRUDERS > 1
-    tHotend = int(degHotend(1) + 0.5);
-    tTarget = int(degTargetHotend(1) + 0.5);
-    lcd.print(LCD_STR_THERMOMETER[0]);
-#  else//Heated bed
-    tHotend=int(degBed() + 0.5);
-    tTarget=int(degTargetBed() + 0.5);
-    lcd.print(LCD_STR_BEDTEMP[0]);
-#  endif
-    lcd.print(itostr3(tHotend));
-    lcd.print('/');
-    lcd.print(itostr3left(tTarget));
-# endif//EXTRUDERS > 1 || TEMP_SENSOR_BED != 0
-
-#else//LCD_WIDTH > 19
-    lcd.setCursor(0, 0);
-    lcd.print(LCD_STR_THERMOMETER[0]);
-    lcd.print(itostr3(tHotend));
-    lcd.print('/');
-    lcd.print(itostr3left(tTarget));
-    lcd_printPGM(PSTR(LCD_STR_DEGREE " "));
-    if (tTarget < 10)
-        lcd.print(' ');
-
-# if EXTRUDERS > 1 || TEMP_SENSOR_BED != 0
-    //If we have an 2nd extruder or heated bed, show that in the top right corner
-    lcd.setCursor(10, 0);
-#  if EXTRUDERS > 1
-    tHotend = int(degHotend(1) + 0.5);
-    tTarget = int(degTargetHotend(1) + 0.5);
-    lcd.print(LCD_STR_THERMOMETER[0]);
-#  else//Heated bed
-    tHotend=int(degBed() + 0.5);
-    tTarget=int(degTargetBed() + 0.5);
-    lcd.print(LCD_STR_BEDTEMP[0]);
-#  endif
-    lcd.print(itostr3(tHotend));
-    lcd.print('/');
-    lcd.print(itostr3left(tTarget));
-    lcd_printPGM(PSTR(LCD_STR_DEGREE " "));
-    if (tTarget < 10)
-        lcd.print(' ');
-# endif//EXTRUDERS > 1 || TEMP_SENSOR_BED != 0
-#endif//LCD_WIDTH > 19
-
-#if LCD_HEIGHT > 2
-//Lines 2 for 4 line LCD
-# if LCD_WIDTH < 20
-#  ifdef SDSUPPORT
-    lcd.setCursor(0, 2);
-    lcd_printPGM(PSTR("SD"));
-    if (IS_SD_PRINTING)
-        lcd.print(itostr3(card.percentDone()));
-    else
-        lcd_printPGM(PSTR("---"));
-    lcd.print('%');
-#  endif//SDSUPPORT
-# else//LCD_WIDTH > 19
-#  if EXTRUDERS > 1 && TEMP_SENSOR_BED != 0
-    //If we both have a 2nd extruder and a heated bed, show the heated bed temp on the 2nd line on the left, as the first line is filled with extruder temps
-    tHotend=int(degBed() + 0.5);
-    tTarget=int(degTargetBed() + 0.5);
-
-    lcd.setCursor(0, 1);
-    lcd.print(LCD_STR_BEDTEMP[0]);
-    lcd.print(itostr3(tHotend));
-    lcd.print('/');
-    lcd.print(itostr3left(tTarget));
-    lcd_printPGM(PSTR(LCD_STR_DEGREE " "));
-    if (tTarget < 10)
-        lcd.print(' ');
-#  else
-    lcd.setCursor(0,1);
-    lcd.print('X');
-    lcd.print(ftostr3(current_position[X_AXIS]));
-    lcd_printPGM(PSTR(" Y"));
-    lcd.print(ftostr3(current_position[Y_AXIS]));
-#  endif//EXTRUDERS > 1 || TEMP_SENSOR_BED != 0
-# endif//LCD_WIDTH > 19
-    lcd.setCursor(LCD_WIDTH - 8, 1);
-    lcd.print('Z');
-    lcd.print(ftostr32(current_position[Z_AXIS]));
-#endif//LCD_HEIGHT > 2
-
-#if LCD_HEIGHT > 3
-    lcd.setCursor(0, 2);
-    lcd.print(LCD_STR_FEEDRATE[0]);
-    lcd.print(itostr3(feedmultiply));
-    lcd.print('%');
-# if LCD_WIDTH > 19
-#  ifdef SDSUPPORT
-    lcd.setCursor(7, 2);
-    lcd_printPGM(PSTR("SD"));
-    if (IS_SD_PRINTING)
-        lcd.print(itostr3(card.percentDone()));
-    else
-        lcd_printPGM(PSTR("---"));
-    lcd.print('%');
-#  endif//SDSUPPORT
-# endif//LCD_WIDTH > 19
-    lcd.setCursor(LCD_WIDTH - 6, 2);
-    lcd.print(LCD_STR_CLOCK[0]);
-    if(starttime != 0)
-    {
-        uint16_t time = millis()/60000 - starttime/60000;
-        lcd.print(itostr2(time/60));
-        lcd.print(':');
-        lcd.print(itostr2(time%60));
-    }else{
-        lcd_printPGM(PSTR("--:--"));
-    }
-#endif
-
-    //Status message line on the last line
-    lcd.setCursor(0, LCD_HEIGHT - 1);
-    lcd.print(lcd_status_message);
-}
-static void lcd_implementation_drawmenu_generic(uint8_t row, const char* pstr, char pre_char, char post_char)
-{
-    char c;
-    //Use all characters in narrow LCDs
-  #if LCD_WIDTH < 20
-    	uint8_t n = LCD_WIDTH - 1 - 1;
-    #else
-    	uint8_t n = LCD_WIDTH - 1 - 2;
-  #endif
-    lcd.setCursor(0, row);
-    lcd.print(pre_char);
-    while((c = pgm_read_byte(pstr)) != '\0')
-    {
-        lcd.print(c);
-        pstr++;
-        n--;
-    }
-    while(n--)
-        lcd.print(' ');
-    lcd.print(post_char);
-    lcd.print(' ');
-}
-static void lcd_implementation_drawmenu_setting_edit_generic(uint8_t row, const char* pstr, char pre_char, char* data)
-{
-    char c;
-    //Use all characters in narrow LCDs
-  #if LCD_WIDTH < 20
-    	uint8_t n = LCD_WIDTH - 1 - 1 - strlen(data);
-    #else
-    	uint8_t n = LCD_WIDTH - 1 - 2 - strlen(data);
-  #endif
-    lcd.setCursor(0, row);
-    lcd.print(pre_char);
-    while((c = pgm_read_byte(pstr)) != '\0')
-    {
-        lcd.print(c);
-        pstr++;
-        n--;
-    }
-    lcd.print(':');
-    while(n--)
-        lcd.print(' ');
-    lcd.print(data);
-}
-static void lcd_implementation_drawmenu_setting_edit_generic_P(uint8_t row, const char* pstr, char pre_char, const char* data)
-{
-    char c;
-    //Use all characters in narrow LCDs
-  #if LCD_WIDTH < 20
-    	uint8_t n = LCD_WIDTH - 1 - 1 - strlen_P(data);
-    #else
-    	uint8_t n = LCD_WIDTH - 1 - 2 - strlen_P(data);
-  #endif
-    lcd.setCursor(0, row);
-    lcd.print(pre_char);
-    while((c = pgm_read_byte(pstr)) != '\0')
-    {
-        lcd.print(c);
-        pstr++;
-        n--;
-    }
-    lcd.print(':');
-    while(n--)
-        lcd.print(' ');
-    lcd_printPGM(data);
-}
-#define lcd_implementation_drawmenu_setting_edit_int3_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', itostr3(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_int3(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', itostr3(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_float3_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', ftostr3(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_float3(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', ftostr3(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_float32_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', ftostr32(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_float32(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', ftostr32(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_float5_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', ftostr5(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_float5(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', ftostr5(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_float52_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', ftostr52(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_float52(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', ftostr52(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_float51_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', ftostr51(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_float51(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', ftostr51(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_long5_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', ftostr5(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_long5(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', ftostr5(*(data)))
-#define lcd_implementation_drawmenu_setting_edit_bool_selected(row, pstr, pstr2, data) lcd_implementation_drawmenu_setting_edit_generic_P(row, pstr, '>', (*(data))?PSTR(MSG_ON):PSTR(MSG_OFF))
-#define lcd_implementation_drawmenu_setting_edit_bool(row, pstr, pstr2, data) lcd_implementation_drawmenu_setting_edit_generic_P(row, pstr, ' ', (*(data))?PSTR(MSG_ON):PSTR(MSG_OFF))
-void lcd_implementation_drawedit(const char* pstr, char* value)
-{
-    lcd.setCursor(1, 1);
-    lcd_printPGM(pstr);
-    lcd.print(':');
-   #if LCD_WIDTH < 20
-    	lcd.setCursor(LCD_WIDTH - strlen(value), 1);
-    #else
-    	lcd.setCursor(LCD_WIDTH -1 - strlen(value), 1);
-   #endif
-    lcd.print(value);
-}
-static void lcd_implementation_drawmenu_sdfile_selected(uint8_t row, const char* pstr, const char* filename, char* longFilename)
-{
-    char c;
-    uint8_t n = LCD_WIDTH - 1;
-    lcd.setCursor(0, row);
-    lcd.print('>');
-    if (longFilename[0] != '\0')
-    {
-        filename = longFilename;
-        longFilename[LCD_WIDTH-1] = '\0';
-    }
-    while((c = *filename) != '\0')
-    {
-        lcd.print(c);
-        filename++;
-        n--;
-    }
-    while(n--)
-        lcd.print(' ');
-}
-static void lcd_implementation_drawmenu_sdfile(uint8_t row, const char* pstr, const char* filename, char* longFilename)
-{
-    char c;
-    uint8_t n = LCD_WIDTH - 1;
-    lcd.setCursor(0, row);
-    lcd.print(' ');
-    if (longFilename[0] != '\0')
-    {
-        filename = longFilename;
-        longFilename[LCD_WIDTH-1] = '\0';
-    }
-    while((c = *filename) != '\0')
-    {
-        lcd.print(c);
-        filename++;
-        n--;
-    }
-    while(n--)
-        lcd.print(' ');
-}
-static void lcd_implementation_drawmenu_sddirectory_selected(uint8_t row, const char* pstr, const char* filename, char* longFilename)
-{
-    char c;
-    uint8_t n = LCD_WIDTH - 2;
-    lcd.setCursor(0, row);
-    lcd.print('>');
-    lcd.print(LCD_STR_FOLDER[0]);
-    if (longFilename[0] != '\0')
-    {
-        filename = longFilename;
-        longFilename[LCD_WIDTH-2] = '\0';
-    }
-    while((c = *filename) != '\0')
-    {
-        lcd.print(c);
-        filename++;
-        n--;
-    }
-    while(n--)
-        lcd.print(' ');
-}
-static void lcd_implementation_drawmenu_sddirectory(uint8_t row, const char* pstr, const char* filename, char* longFilename)
-{
-    char c;
-    uint8_t n = LCD_WIDTH - 2;
-    lcd.setCursor(0, row);
-    lcd.print(' ');
-    lcd.print(LCD_STR_FOLDER[0]);
-    if (longFilename[0] != '\0')
-    {
-        filename = longFilename;
-        longFilename[LCD_WIDTH-2] = '\0';
-    }
-    while((c = *filename) != '\0')
-    {
-        lcd.print(c);
-        filename++;
-        n--;
-    }
-    while(n--)
-        lcd.print(' ');
-}
-#define lcd_implementation_drawmenu_back_selected(row, pstr, data) lcd_implementation_drawmenu_generic(row, pstr, LCD_STR_UPLEVEL[0], LCD_STR_UPLEVEL[0])
-#define lcd_implementation_drawmenu_back(row, pstr, data) lcd_implementation_drawmenu_generic(row, pstr, ' ', LCD_STR_UPLEVEL[0])
-#define lcd_implementation_drawmenu_submenu_selected(row, pstr, data) lcd_implementation_drawmenu_generic(row, pstr, '>', LCD_STR_ARROW_RIGHT[0])
-#define lcd_implementation_drawmenu_submenu(row, pstr, data) lcd_implementation_drawmenu_generic(row, pstr, ' ', LCD_STR_ARROW_RIGHT[0])
-#define lcd_implementation_drawmenu_gcode_selected(row, pstr, gcode) lcd_implementation_drawmenu_generic(row, pstr, '>', ' ')
-#define lcd_implementation_drawmenu_gcode(row, pstr, gcode) lcd_implementation_drawmenu_generic(row, pstr, ' ', ' ')
-#define lcd_implementation_drawmenu_function_selected(row, pstr, data) lcd_implementation_drawmenu_generic(row, pstr, '>', ' ')
-#define lcd_implementation_drawmenu_function(row, pstr, data) lcd_implementation_drawmenu_generic(row, pstr, ' ', ' ')
-
-static void lcd_implementation_quick_feedback()
-{
-#if BEEPER > -1
-    SET_OUTPUT(BEEPER);
-    for(int8_t i=0;i<10;i++)
-    {
-		WRITE(BEEPER,HIGH);
-		delay(3);
-		WRITE(BEEPER,LOW);
-		delay(3);
-    }
-#endif
-}
-#endif//ULTRA_LCD_IMPLEMENTATION_HITACHI_HD44780_H
+#ifndef ULTRA_LCD_IMPLEMENTATION_HITACHI_HD44780_H
+#define ULTRA_LCD_IMPLEMENTATION_HITACHI_HD44780_H
+
+/**
+* Implementation of the LCD display routines for a hitachi HD44780 display. These are common LCD character displays.
+* When selecting the rusian language, a slightly different LCD implementation is used to handle UTF8 characters.
+**/
+
+// Declare LCD class to use
+#if defined(LCD_I2C_TYPE_PCF8575)
+  // note: these are virtual pins on the PCF8575 controller not Arduino pins
+  #define LCD_I2C_PIN_BL  3
+  #define LCD_I2C_PIN_EN  2
+  #define LCD_I2C_PIN_RW  1
+  #define LCD_I2C_PIN_RS  0
+  #define LCD_I2C_PIN_D4  4
+  #define LCD_I2C_PIN_D5  5
+  #define LCD_I2C_PIN_D6  6
+  #define LCD_I2C_PIN_D7  7
+
+  #include <Wire.h>
+  #include <LCD.h>
+  #include <LiquidCrystal_I2C.h>
+  #define LCD_CLASS LiquidCrystal_I2C
+  LCD_CLASS lcd(LCD_I2C_ADDRESS,LCD_I2C_PIN_EN,LCD_I2C_PIN_RW,LCD_I2C_PIN_RS,LCD_I2C_PIN_D4,LCD_I2C_PIN_D5,LCD_I2C_PIN_D6,LCD_I2C_PIN_D7);
+#elif defined(LCD_I2C_TYPE_MCP23017)
+  //for the LED indicators (which maybe mapped to different things in lcd_implementation_update_indicators())
+  #define LED_A 0x04 //100
+  #define LED_B 0x02 //010
+  #define LED_C 0x01  //001
+
+  #include <Wire.h>
+  #include <LiquidTWI2.h>
+  #define LCD_CLASS LiquidTWI2
+  LCD_CLASS lcd(LCD_I2C_ADDRESS);  //An alternative I2C master address can be used in place of "0"
+#elif defined(LCD_I2C_TYPE_MCP23008)
+  #include <Wire.h>
+  #include <LiquidTWI2.h>
+  #define LCD_CLASS LiquidTWI2
+  LCD_CLASS lcd(LCD_I2C_ADDRESS);  //An alternative I2C master address can be used in place of "0"
+#else
+  #if LANGUAGE_CHOICE == 6
+    #include "LiquidCrystalRus.h"
+    #define LCD_CLASS LiquidCrystalRus
+  #else 
+    #include <LiquidCrystal.h>
+    #define LCD_CLASS LiquidCrystal
+  #endif  
+  LCD_CLASS lcd(LCD_PINS_RS, LCD_PINS_ENABLE, LCD_PINS_D4, LCD_PINS_D5,LCD_PINS_D6,LCD_PINS_D7);  //RS,Enable,D4,D5,D6,D7
+#endif
+
+extern volatile uint8_t buttons;  //the last checked buttons in a bit array.
+
+// provide default button bitmask and encoder definitions (note this is not pin or motherboard specific)
+#ifdef LCD_I2C_VIKI
+  //encoder rotation values
+  #define encrot0 0
+  #define encrot1 2
+  #define encrot2 3
+  #define encrot3 1
+
+  #define BLEN_C 2
+  #define BLEN_B 1
+  #define BLEN_A 0
+
+  #define EN_C (1<<BLEN_C) // The stop/pause/resume button comes through BTN_ENC pin (for consistency with NEWPANEL code)
+  #define EN_B (1<<BLEN_B) // The two encoder pins are connected through BTN_EN1 and BTN_EN2
+  #define EN_A (1<<BLEN_A)
+
+  #define B_I2C_BTN_OFFSET 3 // (the first three bit positions reserved for EN_A, EN_B, EN_C)
+  
+  // button and encoder bit positions within 'buttons'
+  #define B_ST (EN_C)                             // The pause/stop/resume button is mapped to EN_C for consistency with NEWPANEL 
+  #define B_LE (BUTTON_LEFT<<B_I2C_BTN_OFFSET)    // The remaining buttons are I2C read buttons.
+  #define B_UP (BUTTON_UP<<B_I2C_BTN_OFFSET)
+  #define B_MI (BUTTON_SELECT<<B_I2C_BTN_OFFSET)
+  #define B_DW (BUTTON_DOWN<<B_I2C_BTN_OFFSET)
+  #define B_RI (BUTTON_RIGHT<<B_I2C_BTN_OFFSET)
+
+  #define LCD_CLICKED (buttons&(B_MI|B_RI|B_ST)) // pause/stop button also acts as click until we implement proper pause/stop.
+
+  // I2C buttons are likely to take too long to read inside interrupt context and so we read them during lcd_update
+  #define LCD_HAS_EXTRA_BUTTONS
+  
+#elif defined(NEWPANEL)
+  //from the same bit in the RAMPS Newpanel define
+  //encoder rotation values
+  #define encrot0 0
+  #define encrot1 2
+  #define encrot2 3
+  #define encrot3 1
+ 
+  #define BLEN_C 2
+  #define BLEN_B 1
+  #define BLEN_A 0
+
+  #define EN_C (1<<BLEN_C)
+  #define EN_B (1<<BLEN_B)
+  #define EN_A (1<<BLEN_A)
+
+  #define LCD_CLICKED (buttons&EN_C)
+  
+#else // old style ULTIPANEL
+  //encoder rotation values
+  #ifndef ULTIMAKERCONTROLLER
+    #define encrot0 0
+    #define encrot1 2
+    #define encrot2 3
+    #define encrot3 1
+  #else
+    #define encrot0 0
+    #define encrot1 1
+    #define encrot2 3
+    #define encrot3 2
+  #endif
+
+  //bits in the shift register that carry the buttons for:
+  // left up center down right red(stop)
+  #define BL_LE 7
+  #define BL_UP 6
+  #define BL_MI 5
+  #define BL_DW 4
+  #define BL_RI 3
+  #define BL_ST 2
+
+  #define BLEN_B 1
+  #define BLEN_A 0
+
+  //automatic, do not change
+  #define B_LE (1<<BL_LE)
+  #define B_UP (1<<BL_UP)
+  #define B_MI (1<<BL_MI)
+  #define B_DW (1<<BL_DW)
+  #define B_RI (1<<BL_RI)
+  #define B_ST (1<<BL_ST)
+  #define EN_B (1<<BLEN_B)
+  #define EN_A (1<<BLEN_A)
+  
+  #define LCD_CLICKED (buttons&(B_MI|B_ST))
+#endif//else NEWPANEL
+
+#ifdef LCD_HAS_STATUS_INDICATORS  
+//forward declaration
+static void lcd_implementation_update_indicators();
+#endif
+
+/* Custom characters defined in the first 8 characters of the LCD */
+#define LCD_STR_BEDTEMP     "\x00"
+#define LCD_STR_DEGREE      "\x01"
+#define LCD_STR_THERMOMETER "\x02"
+#define LCD_STR_UPLEVEL     "\x03"
+#define LCD_STR_REFRESH     "\x04"
+#define LCD_STR_FOLDER      "\x05"
+#define LCD_STR_FEEDRATE    "\x06"
+#define LCD_STR_CLOCK       "\x07"
+#define LCD_STR_ARROW_RIGHT "\x7E"  /* from the default character set */
+
+static void lcd_implementation_init()
+{
+    byte bedTemp[8] =
+    {
+        B00000,
+        B11111,
+        B10101,
+        B10001,
+        B10101,
+        B11111,
+        B00000,
+        B00000
+    }; //thanks Sonny Mounicou
+    byte degree[8] =
+    {
+        B01100,
+        B10010,
+        B10010,
+        B01100,
+        B00000,
+        B00000,
+        B00000,
+        B00000
+    };
+    byte thermometer[8] =
+    {
+        B00100,
+        B01010,
+        B01010,
+        B01010,
+        B01010,
+        B10001,
+        B10001,
+        B01110
+    };
+    byte uplevel[8]={
+        B00100,
+        B01110,
+        B11111,
+        B00100,
+        B11100,
+        B00000,
+        B00000,
+        B00000
+    }; //thanks joris
+    byte refresh[8]={
+        B00000,
+        B00110,
+        B11001,
+        B11000,
+        B00011,
+        B10011,
+        B01100,
+        B00000,
+    }; //thanks joris
+    byte folder [8]={
+        B00000,
+        B11100,
+        B11111,
+        B10001,
+        B10001,
+        B11111,
+        B00000,
+        B00000
+    }; //thanks joris
+    byte feedrate [8]={
+        B11100,
+        B10000,
+        B11000,
+        B10111,
+        B00101,
+        B00110,
+        B00101,
+        B00000
+    }; //thanks Sonny Mounicou
+    byte clock [8]={
+        B00000,
+        B01110,
+        B10011,
+        B10101,
+        B10001,
+        B01110,
+        B00000,
+        B00000
+    }; //thanks Sonny Mounicou
+
+#if defined(LCDI2C_TYPE_PCF8575)
+    lcd.begin(LCD_WIDTH, LCD_HEIGHT);
+  #ifdef LCD_I2C_PIN_BL
+    lcd.setBacklightPin(LCD_I2C_PIN_BL,POSITIVE);
+    lcd.setBacklight(HIGH);
+  #endif
+#elif defined(LCD_I2C_TYPE_MCP23017)
+  	lcd.setMCPType(LTI_TYPE_MCP23017);
+    lcd.begin(LCD_WIDTH, LCD_HEIGHT);
+    lcd.setBacklight(0); //set all the LEDs off to begin with
+#elif defined(LCD_I2C_TYPE_MCP23008)
+  	lcd.setMCPType(LTI_TYPE_MCP23008);
+    lcd.begin(LCD_WIDTH, LCD_HEIGHT);
+#else
+    lcd.begin(LCD_WIDTH, LCD_HEIGHT);
+#endif
+
+    lcd.createChar(LCD_STR_BEDTEMP[0], bedTemp);
+    lcd.createChar(LCD_STR_DEGREE[0], degree);
+    lcd.createChar(LCD_STR_THERMOMETER[0], thermometer);
+    lcd.createChar(LCD_STR_UPLEVEL[0], uplevel);
+    lcd.createChar(LCD_STR_REFRESH[0], refresh);
+    lcd.createChar(LCD_STR_FOLDER[0], folder);
+    lcd.createChar(LCD_STR_FEEDRATE[0], feedrate);
+    lcd.createChar(LCD_STR_CLOCK[0], clock);
+    lcd.clear();
+}
+static void lcd_implementation_clear()
+{
+    lcd.clear();
+}
+/* Arduino < 1.0.0 is missing a function to print PROGMEM strings, so we need to implement our own */
+static void lcd_printPGM(const char* str)
+{
+    char c;
+    while((c = pgm_read_byte(str++)) != '\0')
+    {
+        lcd.write(c);
+    }
+}
+/*
+Possible status screens:
+16x2   |0123456789012345|
+       |000/000 B000/000|
+       |Status line.....|
+
+16x4   |0123456789012345|
+       |000/000 B000/000|
+       |SD100%    Z000.0|
+       |F100%     T--:--|
+       |Status line.....|
+
+20x2   |01234567890123456789|
+       |T000/000D B000/000D |
+       |Status line.........|
+
+20x4   |01234567890123456789|
+       |T000/000D B000/000D |
+       |X+000.0 Y+000.0 Z+000.0|
+       |F100%  SD100% T--:--|
+       |Status line.........|
+
+20x4   |01234567890123456789|
+       |T000/000D B000/000D |
+       |T000/000D     Z000.0|
+       |F100%  SD100% T--:--|
+       |Status line.........|
+*/
+static void lcd_implementation_status_screen()
+{
+    int tHotend=int(degHotend(0) + 0.5);
+    int tTarget=int(degTargetHotend(0) + 0.5);
+
+#if LCD_WIDTH < 20
+    lcd.setCursor(0, 0);
+    lcd.print(itostr3(tHotend));
+    lcd.print('/');
+    lcd.print(itostr3left(tTarget));
+
+# if EXTRUDERS > 1 || TEMP_SENSOR_BED != 0
+    //If we have an 2nd extruder or heated bed, show that in the top right corner
+    lcd.setCursor(8, 0);
+#  if EXTRUDERS > 1
+    tHotend = int(degHotend(1) + 0.5);
+    tTarget = int(degTargetHotend(1) + 0.5);
+    lcd.print(LCD_STR_THERMOMETER[0]);
+#  else//Heated bed
+    tHotend=int(degBed() + 0.5);
+    tTarget=int(degTargetBed() + 0.5);
+    lcd.print(LCD_STR_BEDTEMP[0]);
+#  endif
+    lcd.print(itostr3(tHotend));
+    lcd.print('/');
+    lcd.print(itostr3left(tTarget));
+# endif//EXTRUDERS > 1 || TEMP_SENSOR_BED != 0
+
+#else//LCD_WIDTH > 19
+    lcd.setCursor(0, 0);
+    lcd.print(LCD_STR_THERMOMETER[0]);
+    lcd.print(itostr3(tHotend));
+    lcd.print('/');
+    lcd.print(itostr3left(tTarget));
+    lcd_printPGM(PSTR(LCD_STR_DEGREE " "));
+    if (tTarget < 10)
+        lcd.print(' ');
+
+# if EXTRUDERS > 1 || TEMP_SENSOR_BED != 0
+    //If we have an 2nd extruder or heated bed, show that in the top right corner
+    lcd.setCursor(10, 0);
+#  if EXTRUDERS > 1
+    tHotend = int(degHotend(1) + 0.5);
+    tTarget = int(degTargetHotend(1) + 0.5);
+    lcd.print(LCD_STR_THERMOMETER[0]);
+#  else//Heated bed
+    tHotend=int(degBed() + 0.5);
+    tTarget=int(degTargetBed() + 0.5);
+    lcd.print(LCD_STR_BEDTEMP[0]);
+#  endif
+    lcd.print(itostr3(tHotend));
+    lcd.print('/');
+    lcd.print(itostr3left(tTarget));
+    lcd_printPGM(PSTR(LCD_STR_DEGREE " "));
+    if (tTarget < 10)
+        lcd.print(' ');
+# endif//EXTRUDERS > 1 || TEMP_SENSOR_BED != 0
+#endif//LCD_WIDTH > 19
+
+#if LCD_HEIGHT > 2
+//Lines 2 for 4 line LCD
+# if LCD_WIDTH < 20
+#  ifdef SDSUPPORT
+    lcd.setCursor(0, 2);
+    lcd_printPGM(PSTR("SD"));
+    if (IS_SD_PRINTING)
+        lcd.print(itostr3(card.percentDone()));
+    else
+        lcd_printPGM(PSTR("---"));
+    lcd.print('%');
+#  endif//SDSUPPORT
+# else//LCD_WIDTH > 19
+#  if EXTRUDERS > 1 && TEMP_SENSOR_BED != 0
+    //If we both have a 2nd extruder and a heated bed, show the heated bed temp on the 2nd line on the left, as the first line is filled with extruder temps
+    tHotend=int(degBed() + 0.5);
+    tTarget=int(degTargetBed() + 0.5);
+
+    lcd.setCursor(0, 1);
+    lcd.print(LCD_STR_BEDTEMP[0]);
+    lcd.print(itostr3(tHotend));
+    lcd.print('/');
+    lcd.print(itostr3left(tTarget));
+    lcd_printPGM(PSTR(LCD_STR_DEGREE " "));
+    if (tTarget < 10)
+        lcd.print(' ');
+#  else
+    lcd.setCursor(0,1);
+    lcd.print('X');
+    lcd.print(ftostr3(current_position[X_AXIS]));
+    lcd_printPGM(PSTR(" Y"));
+    lcd.print(ftostr3(current_position[Y_AXIS]));
+#  endif//EXTRUDERS > 1 || TEMP_SENSOR_BED != 0
+# endif//LCD_WIDTH > 19
+    lcd.setCursor(LCD_WIDTH - 8, 1);
+    lcd.print('Z');
+    lcd.print(ftostr32(current_position[Z_AXIS]));
+#endif//LCD_HEIGHT > 2
+
+#if LCD_HEIGHT > 3
+    lcd.setCursor(0, 2);
+    lcd.print(LCD_STR_FEEDRATE[0]);
+    lcd.print(itostr3(feedmultiply));
+    lcd.print('%');
+# if LCD_WIDTH > 19
+#  ifdef SDSUPPORT
+    lcd.setCursor(7, 2);
+    lcd_printPGM(PSTR("SD"));
+    if (IS_SD_PRINTING)
+        lcd.print(itostr3(card.percentDone()));
+    else
+        lcd_printPGM(PSTR("---"));
+    lcd.print('%');
+#  endif//SDSUPPORT
+# endif//LCD_WIDTH > 19
+    lcd.setCursor(LCD_WIDTH - 6, 2);
+    lcd.print(LCD_STR_CLOCK[0]);
+    if(starttime != 0)
+    {
+        uint16_t time = millis()/60000 - starttime/60000;
+        lcd.print(itostr2(time/60));
+        lcd.print(':');
+        lcd.print(itostr2(time%60));
+    }else{
+        lcd_printPGM(PSTR("--:--"));
+    }
+#endif
+
+    //Status message line on the last line
+    lcd.setCursor(0, LCD_HEIGHT - 1);
+    lcd.print(lcd_status_message);
+#ifdef LCD_HAS_STATUS_INDICATORS
+    lcd_implementation_update_indicators();
+#endif    
+}
+static void lcd_implementation_drawmenu_generic(uint8_t row, const char* pstr, char pre_char, char post_char)
+{
+    char c;
+    //Use all characters in narrow LCDs
+  #if LCD_WIDTH < 20
+    	uint8_t n = LCD_WIDTH - 1 - 1;
+    #else
+    	uint8_t n = LCD_WIDTH - 1 - 2;
+  #endif
+    lcd.setCursor(0, row);
+    lcd.print(pre_char);
+    while((c = pgm_read_byte(pstr)) != '\0')
+    {
+        lcd.print(c);
+        pstr++;
+        n--;
+    }
+    while(n--)
+        lcd.print(' ');
+    lcd.print(post_char);
+    lcd.print(' ');
+}
+static void lcd_implementation_drawmenu_setting_edit_generic(uint8_t row, const char* pstr, char pre_char, char* data)
+{
+    char c;
+    //Use all characters in narrow LCDs
+  #if LCD_WIDTH < 20
+    	uint8_t n = LCD_WIDTH - 1 - 1 - strlen(data);
+    #else
+    	uint8_t n = LCD_WIDTH - 1 - 2 - strlen(data);
+  #endif
+    lcd.setCursor(0, row);
+    lcd.print(pre_char);
+    while((c = pgm_read_byte(pstr)) != '\0')
+    {
+        lcd.print(c);
+        pstr++;
+        n--;
+    }
+    lcd.print(':');
+    while(n--)
+        lcd.print(' ');
+    lcd.print(data);
+}
+static void lcd_implementation_drawmenu_setting_edit_generic_P(uint8_t row, const char* pstr, char pre_char, const char* data)
+{
+    char c;
+    //Use all characters in narrow LCDs
+  #if LCD_WIDTH < 20
+    	uint8_t n = LCD_WIDTH - 1 - 1 - strlen_P(data);
+    #else
+    	uint8_t n = LCD_WIDTH - 1 - 2 - strlen_P(data);
+  #endif
+    lcd.setCursor(0, row);
+    lcd.print(pre_char);
+    while((c = pgm_read_byte(pstr)) != '\0')
+    {
+        lcd.print(c);
+        pstr++;
+        n--;
+    }
+    lcd.print(':');
+    while(n--)
+        lcd.print(' ');
+    lcd_printPGM(data);
+}
+#define lcd_implementation_drawmenu_setting_edit_int3_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', itostr3(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_int3(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', itostr3(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_float3_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', ftostr3(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_float3(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', ftostr3(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_float32_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', ftostr32(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_float32(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', ftostr32(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_float5_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', ftostr5(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_float5(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', ftostr5(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_float52_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', ftostr52(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_float52(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', ftostr52(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_float51_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', ftostr51(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_float51(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', ftostr51(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_long5_selected(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, '>', ftostr5(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_long5(row, pstr, pstr2, data, minValue, maxValue) lcd_implementation_drawmenu_setting_edit_generic(row, pstr, ' ', ftostr5(*(data)))
+#define lcd_implementation_drawmenu_setting_edit_bool_selected(row, pstr, pstr2, data) lcd_implementation_drawmenu_setting_edit_generic_P(row, pstr, '>', (*(data))?PSTR(MSG_ON):PSTR(MSG_OFF))
+#define lcd_implementation_drawmenu_setting_edit_bool(row, pstr, pstr2, data) lcd_implementation_drawmenu_setting_edit_generic_P(row, pstr, ' ', (*(data))?PSTR(MSG_ON):PSTR(MSG_OFF))
+void lcd_implementation_drawedit(const char* pstr, char* value)
+{
+    lcd.setCursor(1, 1);
+    lcd_printPGM(pstr);
+    lcd.print(':');
+   #if LCD_WIDTH < 20
+    	lcd.setCursor(LCD_WIDTH - strlen(value), 1);
+    #else
+    	lcd.setCursor(LCD_WIDTH -1 - strlen(value), 1);
+   #endif
+    lcd.print(value);
+}
+static void lcd_implementation_drawmenu_sdfile_selected(uint8_t row, const char* pstr, const char* filename, char* longFilename)
+{
+    char c;
+    uint8_t n = LCD_WIDTH - 1;
+    lcd.setCursor(0, row);
+    lcd.print('>');
+    if (longFilename[0] != '\0')
+    {
+        filename = longFilename;
+        longFilename[LCD_WIDTH-1] = '\0';
+    }
+    while((c = *filename) != '\0')
+    {
+        lcd.print(c);
+        filename++;
+        n--;
+    }
+    while(n--)
+        lcd.print(' ');
+}
+static void lcd_implementation_drawmenu_sdfile(uint8_t row, const char* pstr, const char* filename, char* longFilename)
+{
+    char c;
+    uint8_t n = LCD_WIDTH - 1;
+    lcd.setCursor(0, row);
+    lcd.print(' ');
+    if (longFilename[0] != '\0')
+    {
+        filename = longFilename;
+        longFilename[LCD_WIDTH-1] = '\0';
+    }
+    while((c = *filename) != '\0')
+    {
+        lcd.print(c);
+        filename++;
+        n--;
+    }
+    while(n--)
+        lcd.print(' ');
+}
+static void lcd_implementation_drawmenu_sddirectory_selected(uint8_t row, const char* pstr, const char* filename, char* longFilename)
+{
+    char c;
+    uint8_t n = LCD_WIDTH - 2;
+    lcd.setCursor(0, row);
+    lcd.print('>');
+    lcd.print(LCD_STR_FOLDER[0]);
+    if (longFilename[0] != '\0')
+    {
+        filename = longFilename;
+        longFilename[LCD_WIDTH-2] = '\0';
+    }
+    while((c = *filename) != '\0')
+    {
+        lcd.print(c);
+        filename++;
+        n--;
+    }
+    while(n--)
+        lcd.print(' ');
+}
+static void lcd_implementation_drawmenu_sddirectory(uint8_t row, const char* pstr, const char* filename, char* longFilename)
+{
+    char c;
+    uint8_t n = LCD_WIDTH - 2;
+    lcd.setCursor(0, row);
+    lcd.print(' ');
+    lcd.print(LCD_STR_FOLDER[0]);
+    if (longFilename[0] != '\0')
+    {
+        filename = longFilename;
+        longFilename[LCD_WIDTH-2] = '\0';
+    }
+    while((c = *filename) != '\0')
+    {
+        lcd.print(c);
+        filename++;
+        n--;
+    }
+    while(n--)
+        lcd.print(' ');
+}
+#define lcd_implementation_drawmenu_back_selected(row, pstr, data) lcd_implementation_drawmenu_generic(row, pstr, LCD_STR_UPLEVEL[0], LCD_STR_UPLEVEL[0])
+#define lcd_implementation_drawmenu_back(row, pstr, data) lcd_implementation_drawmenu_generic(row, pstr, ' ', LCD_STR_UPLEVEL[0])
+#define lcd_implementation_drawmenu_submenu_selected(row, pstr, data) lcd_implementation_drawmenu_generic(row, pstr, '>', LCD_STR_ARROW_RIGHT[0])
+#define lcd_implementation_drawmenu_submenu(row, pstr, data) lcd_implementation_drawmenu_generic(row, pstr, ' ', LCD_STR_ARROW_RIGHT[0])
+#define lcd_implementation_drawmenu_gcode_selected(row, pstr, gcode) lcd_implementation_drawmenu_generic(row, pstr, '>', ' ')
+#define lcd_implementation_drawmenu_gcode(row, pstr, gcode) lcd_implementation_drawmenu_generic(row, pstr, ' ', ' ')
+#define lcd_implementation_drawmenu_function_selected(row, pstr, data) lcd_implementation_drawmenu_generic(row, pstr, '>', ' ')
+#define lcd_implementation_drawmenu_function(row, pstr, data) lcd_implementation_drawmenu_generic(row, pstr, ' ', ' ')
+
+static void lcd_implementation_quick_feedback()
+{
+#ifdef LCD_HAS_I2C_BUZZ
+    lcd.buzz(300,4000);
+#elif defined(BEEPER) && BEEPER > -1
+    SET_OUTPUT(BEEPER);
+    for(int8_t i=0;i<10;i++)
+    {
+        WRITE(BEEPER,HIGH);
+        delay(3);
+        WRITE(BEEPER,LOW);
+        delay(3);
+    }
+#endif
+}
+
+#ifdef LCD_HAS_STATUS_INDICATORS
+static void lcd_implementation_update_indicators()
+{
+  #if defined(LCD_I2C_PANELOLU2) || defined(LCD_I2C_VIKI)
+    //set the LEDS - referred to as backlights by the LiquidTWI2 library 
+    static uint8_t ledsprev = 0;
+    uint8_t leds = 0;
+    if (isHeatingBed()) leds |= LED_A;
+    if (isHeatingHotend(0)) leds |= LED_B;
+    if (fanSpeed) leds |= LED_C;
+    #if EXTRUDERS > 1  
+      if (isHeatingHotend(1)) leds |= LED_C;
+    #endif
+    if (leds != ledsprev) {
+      lcd.setBacklight(leds);
+      ledsprev = leds;
+    }
+  #endif
+}
+#endif
+
+#ifdef LCD_HAS_EXTRA_BUTTONS
+static uint8_t lcd_read_extra_buttons()
+{
+  #ifdef LCD_I2C_TYPE_MCP23017
+    // the I2C button bit positions are shifted by three bits from the native LiquidTWI2 position
+    // this is potentially too slow to call inside interrupt context
+    return lcd.readButtons() << B_I2C_BTN_OFFSET; 
+  #endif
+}
+#endif
+
+#endif//ULTRA_LCD_IMPLEMENTATION_HITACHI_HD44780_H