Split up pins to make it more manageable

Hopefully this is helpful to organization and future expansion….

Marlin/pins_SANGUINOLOLU_11.h

@@ -0,0 +1,172 @@
+/**
+ * Sanguinololu board pin assignments
+ */
+
+#if !defined(__AVR_ATmega644P__) && !defined(__AVR_ATmega1284P__)
+  #error Oops!  Make sure you have 'Sanguino' selected from the 'Tools -> Boards' menu.
+#endif
+
+#define X_STEP_PIN         15
+#define X_DIR_PIN          21
+#define X_STOP_PIN         18
+
+#define Y_STEP_PIN         22
+#define Y_DIR_PIN          23
+#define Y_STOP_PIN         19
+
+#define Z_STEP_PIN         3
+#define Z_DIR_PIN          2
+#define Z_STOP_PIN         20
+
+#define E0_STEP_PIN         1
+#define E0_DIR_PIN          0
+
+#define LED_PIN            -1
+
+#define FAN_PIN            -1
+
+// #if FAN_PIN == 12 || FAN_PIN ==13
+//   #define FAN_SOFT_PWM
+// #endif
+
+#if MB(MELZI)
+  #define LED_PIN            27 /* On some broken versions of the Sanguino libraries the pin definitions are wrong, which then needs LED_PIN as pin 28. But you better upgrade your Sanguino libraries! See #368. */
+  #define FAN_PIN            4 // Works for Panelolu2 too
+#endif
+
+#if MB(STB_11)
+  #define FAN_PIN            4
+  //  Uncomment this if you have the first generation (V1.10) of STBs board
+  #define LCD_PIN_BL         17 // LCD backlight LED
+#endif
+
+#if MB(AZTEEG_X1)
+  #define FAN_PIN            4
+#endif
+
+#ifdef NUM_SERVOS
+  #define SERVO0_PIN          -1
+
+  #if NUM_SERVOS > 1
+    #define SERVO1_PIN        -1
+  #endif
+
+  #if NUM_SERVOS > 2
+    #define SERVO2_PIN        -1
+  #endif
+
+  #if NUM_SERVOS > 3
+    #define SERVO3_PIN        -1
+  #endif
+#endif
+
+#define PS_ON_PIN          -1
+#define KILL_PIN           -1
+
+#define HEATER_0_PIN       13 // (extruder)
+#define HEATER_1_PIN       -1
+#define HEATER_2_PIN       -1
+
+#ifdef SANGUINOLOLU_V_1_2
+
+  #define HEATER_BED_PIN     12 // (bed)
+  #define X_ENABLE_PIN       14
+  #define Y_ENABLE_PIN       14
+  #define Z_ENABLE_PIN       26
+  #define E0_ENABLE_PIN      14
+
+  #ifdef LCD_I2C_PANELOLU2
+    #define FAN_PIN          4 // Uses Transistor1 (PWM) on Panelolu2's Sanguino Adapter Board to drive the fan
+  #endif
+
+#else
+
+  #define HEATER_BED_PIN      14  // (bed)
+  #define X_ENABLE_PIN       -1
+  #define Y_ENABLE_PIN       -1
+  #define Z_ENABLE_PIN       -1
+  #define E0_ENABLE_PIN      -1
+
+#endif
+
+#define TEMP_0_PIN          7   // MUST USE ANALOG INPUT NUMBERING NOT DIGITAL OUTPUT NUMBERING!!!!!!!!! (pin 33 extruder)
+#define TEMP_1_PIN         -1
+#define TEMP_2_PIN         -1
+#define TEMP_BED_PIN        6   // MUST USE ANALOG INPUT NUMBERING NOT DIGITAL OUTPUT NUMBERING!!!!!!!!! (pin 34 bed)
+#define SDPOWER            -1
+#define SDSS               31
+
+/* On some broken versions of the Sanguino libraries the pin definitions are wrong, which then needs SDSS as pin 24. But you better upgrade your Sanguino libraries! See #368. */
+//#define SDSS               24
+
+#ifdef ULTRA_LCD
+ #ifdef NEWPANEL
+   //we have no buzzer installed
+   #define BEEPER -1
+   //LCD Pins
+   #ifdef DOGLCD
+   #ifdef U8GLIB_ST7920 //SPI GLCD 12864 ST7920 ( like [www.digole.com] ) For Melzi V2.0
+     #define LCD_PINS_RS 30 //CS chip select /SS chip slave select
+     #define LCD_PINS_ENABLE 29 //SID (MOSI)
+     #define LCD_PINS_D4 17 //SCK (CLK) clock
+     #define BEEPER 27 // Pin 27 is take by LED_Pin, but Melzi LED do nothing with Marlin and I take this pin for BEEPER.... See here > [github.com] , If you want use this pin with Gcode M42 instead BEEPER
+   #else
+     // Pins for DOGM SPI LCD Support
+     #define DOGLCD_A0 30
+     #define DOGLCD_CS 29
+     #define LCD_CONTRAST 1
+   #endif
+     // Uncomment screen orientation
+     #define LCD_SCREEN_ROT_0
+       // #define LCD_SCREEN_ROT_90
+       // #define LCD_SCREEN_ROT_180
+       // #define LCD_SCREEN_ROT_270
+     #else // standard Hitachi LCD controller
+     #define LCD_PINS_RS        4
+     #define LCD_PINS_ENABLE    17
+     #define LCD_PINS_D4        30
+     #define LCD_PINS_D5        29
+     #define LCD_PINS_D6        28
+     #define LCD_PINS_D7        27
+   #endif
+   //The encoder and click button
+   #define BTN_EN1 11
+   #define BTN_EN2 10
+   #ifdef LCD_I2C_PANELOLU2
+     #if MB(MELZI)
+       #define BTN_ENC 29 //the click switch
+       #define LCD_SDSS 30 //to use the SD card reader on the Panelolu2 rather than the melzi board
+     #else
+       #define BTN_ENC 30 //the click switch
+     #endif
+   #else
+     #define BTN_ENC 16  //the click switch
+     #define LCD_SDSS 28 //to use the SD card reader on the smart controller rather than the melzi board
+   #endif //Panelolu2
+   //not connected to a pin
+   #define SDCARDDETECT -1
+
+ #endif //NEWPANEL
+#endif //ULTRA_LCD
+
+#ifdef MAKRPANEL
+  #define BEEPER 29
+  // Pins for DOGM SPI LCD Support
+  #define DOGLCD_A0  30
+  #define DOGLCD_CS  17
+  #define LCD_PIN_BL 28  // backlight LED on PA3
+  // GLCD features
+  #define LCD_CONTRAST 1
+  // Uncomment screen orientation
+  #define LCD_SCREEN_ROT_0
+  // #define LCD_SCREEN_ROT_90
+  // #define LCD_SCREEN_ROT_180
+  // #define LCD_SCREEN_ROT_270
+  //The encoder and click button
+  #define BTN_EN1 11
+  #define BTN_EN2 10
+  #define BTN_ENC 16  //the click switch
+  //not connected to a pin
+  #define SDCARDDETECT -1
+#endif //Makrpanel
+