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+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * Sanguinololu board pin assignments
+ */
+
+/**
+ * Rev B    26 DEC 2016
+ *
+ * 1) added pointer to a current Arduino IDE extension
+ * 2) added support for M3, M4 & M5 spindle control commands
+ * 3) added case light pin definition
+ */
+
+/**
+ * A useable Arduino IDE extension (board manager) can be found at
+ * https://github.com/Lauszus/Sanguino
+ *
+ * This extension has been tested on Arduino 1.6.12 & 1.8.0
+ *
+ * Here's the JSON path:
+ * https://raw.githubusercontent.com/Lauszus/Sanguino/master/package_lauszus_sanguino_index.json
+ *
+ * When installing select 1.0.2
+ *
+ * Installation instructions can be found at https://learn.sparkfun.com/pages/CustomBoardsArduino
+ * Just use the above JSON URL instead of Sparkfun's JSON.
+ *
+ * Once installed select the Sanguino board and then select the CPU.
+ */
+
+#if NOT_TARGET(__AVR_ATmega644P__, __AVR_ATmega1284P__)
+  #error "Oops! Select 'Sanguino' in 'Tools > Boards' and 'ATmega644P' or 'ATmega1284P' in 'Tools > Processor.'"
+#endif
+
+#ifndef BOARD_INFO_NAME
+  #define BOARD_INFO_NAME "Sanguinololu <1.2"
+#endif
+
+//
+// Limit Switches
+//
+#define X_STOP_PIN                            18
+#define Y_STOP_PIN                            19
+#define Z_STOP_PIN                            20
+
+//
+// Steppers
+//
+#define X_STEP_PIN                            15
+#define X_DIR_PIN                             21
+
+#define Y_STEP_PIN                            22
+#define Y_DIR_PIN                             23
+
+#define Z_STEP_PIN                             3
+#define Z_DIR_PIN                              2
+
+#define E0_STEP_PIN                            1
+#define E0_DIR_PIN                             0
+
+//
+// Temperature Sensors
+//
+#define TEMP_0_PIN                             7  // Analog Input (pin 33 extruder)
+#define TEMP_BED_PIN                           6  // Analog Input (pin 34 bed)
+
+//
+// Heaters / Fans
+//
+#define HEATER_0_PIN                          13  // (extruder)
+
+#if ENABLED(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
+
+  #if !defined(FAN_PIN) && ENABLED(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                         4
+  #define Y_ENABLE_PIN                         4
+  #define Z_ENABLE_PIN                         4
+  #define E0_ENABLE_PIN                        4
+
+#endif
+
+#if !defined(FAN_PIN) && (MB(AZTEEG_X1, STB_11) || IS_MELZI)
+  #define FAN_PIN                              4  // Works for Panelolu2 too
+#endif
+
+//
+// Misc. Functions
+//
+
+/**
+ * In some versions of the Sanguino libraries the pin
+ * definitions are wrong, with SDSS = 24 and LED_PIN = 28 (Melzi).
+ * If you encounter issues with these pins, upgrade your
+ * Sanguino libraries! See #368.
+ */
+//#define SDSS                                24
+#define SDSS                                  31
+
+#if IS_MELZI
+  #define LED_PIN                             27
+#elif MB(STB_11)
+  #define LCD_BACKLIGHT_PIN                   17  // LCD backlight LED
+#endif
+
+#if NONE(SPINDLE_FEATURE, LASER_FEATURE) && ENABLED(SANGUINOLOLU_V_1_2) && !BOTH(IS_ULTRA_LCD, IS_NEWPANEL) // try to use IO Header
+  #define CASE_LIGHT_PIN                       4  // Hardware PWM  - see if IO Header is available
+#endif
+
+/**
+ * Sanguinololu 1.4 AUX pins:
+ *
+ *           PWM  TX1  RX1  SDA  SCL
+ *  12V  5V  D12  D11  D10  D17  D16
+ *  GND GND  D31  D30  D29  D28  D27
+ *            A4   A3   A2   A1   A0
+ */
+
+//
+// LCD / Controller
+//
+#if HAS_WIRED_LCD
+
+  #define SD_DETECT_PIN                       -1
+
+  #if HAS_MARLINUI_U8GLIB
+
+    #if ENABLED(LCD_FOR_MELZI)
+
+      #define LCD_PINS_RS                     17
+      #define LCD_PINS_ENABLE                 16
+      #define LCD_PINS_D4                     11
+      #define KILL_PIN                        10
+      #define BEEPER_PIN                      27
+
+      #ifndef BOARD_ST7920_DELAY_1
+        #define BOARD_ST7920_DELAY_1 DELAY_NS(0)
+      #endif
+      #ifndef BOARD_ST7920_DELAY_2
+        #define BOARD_ST7920_DELAY_2 DELAY_NS(188)
+      #endif
+      #ifndef BOARD_ST7920_DELAY_3
+        #define BOARD_ST7920_DELAY_3 DELAY_NS(0)
+      #endif
+
+    #elif ENABLED(U8GLIB_ST7920)                  // SPI GLCD 12864 ST7920 ( like [www.digole.com] ) For Melzi V2.0
+
+      #if IS_MELZI
+        #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
+        // Pin 27 is taken by LED_PIN, but Melzi LED does nothing with
+        // Marlin so this can be used for BEEPER_PIN. You can use this pin
+        // with M42 instead of BEEPER_PIN.
+        #define BEEPER_PIN                    27
+
+        #if IS_RRD_FG_SC
+          #ifndef BOARD_ST7920_DELAY_1
+            #define BOARD_ST7920_DELAY_1 DELAY_NS(0)
+          #endif
+          #ifndef BOARD_ST7920_DELAY_2
+            #define BOARD_ST7920_DELAY_2 DELAY_NS(188)
+          #endif
+          #ifndef BOARD_ST7920_DELAY_3
+            #define BOARD_ST7920_DELAY_3 DELAY_NS(0)
+          #endif
+        #endif
+
+      #else                                       // Sanguinololu >=1.3
+        #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
+
+    #else
+
+      #define DOGLCD_A0                       30
+
+      #if ENABLED(MAKRPANEL)
+
+        #define BEEPER_PIN                    29
+        #define DOGLCD_CS                     17
+        #define LCD_BACKLIGHT_PIN             28  // PA3
+
+      #elif IS_MELZI
+
+        #define BEEPER_PIN                    27
+        #define DOGLCD_CS                     28
+
+      #else                                       // !MAKRPANEL
+
+        #define DOGLCD_CS                     29
+
+      #endif
+
+    #endif
+
+    // Uncomment screen orientation
+    //#define LCD_SCREEN_ROT_0
+    //#define LCD_SCREEN_ROT_90
+    //#define LCD_SCREEN_ROT_180
+    //#define LCD_SCREEN_ROT_270
+
+  #elif ENABLED(ZONESTAR_LCD)                     // For the Tronxy Melzi boards
+
+    #define LCD_PINS_RS                       28
+    #define LCD_PINS_ENABLE                   29
+    #define LCD_PINS_D4                       10
+    #define LCD_PINS_D5                       11
+    #define LCD_PINS_D6                       16
+    #define LCD_PINS_D7                       17
+
+  #else
+
+    #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
+
+  #if ENABLED(LCD_FOR_MELZI)
+
+    #define BTN_ENC                           28
+    #define BTN_EN1                           29
+    #define BTN_EN2                           30
+
+  #elif ENABLED(ZONESTAR_LCD)                     // For the Tronxy Melzi boards
+
+    #define ADC_KEYPAD_PIN                     1
+    #define BTN_EN1                           -1
+    #define BTN_EN2                           -1
+
+  #elif ENABLED(LCD_I2C_PANELOLU2)
+
+    #if IS_MELZI
+      #define BTN_ENC                         29
+      #define LCD_SDSS                        30  // Panelolu2 SD card reader rather than the Melzi
+    #else
+      #define BTN_ENC                         30
+    #endif
+
+  #else                                           // !LCD_FOR_MELZI && !ZONESTAR_LCD && !LCD_I2C_PANELOLU2
+
+    #define BTN_ENC                           16
+    #define LCD_SDSS                          28  // Smart Controller SD card reader rather than the Melzi
+
+  #endif
+
+  #if IS_NEWPANEL && !defined(BTN_EN1)
+    #define BTN_EN1                           11
+    #define BTN_EN2                           10
+  #endif
+
+#endif // HAS_WIRED_LCD
+
+//
+// M3/M4/M5 - Spindle/Laser Control
+//
+#if HAS_CUTTER
+  #if !MB(AZTEEG_X1) && ENABLED(SANGUINOLOLU_V_1_2) && !BOTH(IS_ULTRA_LCD, IS_NEWPANEL) // try to use IO Header
+
+    #define SPINDLE_LASER_ENA_PIN             10  // Pullup or pulldown!
+    #define SPINDLE_LASER_PWM_PIN              4  // Hardware PWM
+    #define SPINDLE_DIR_PIN                   11
+
+  #elif !MB(MELZI)                                // use X stepper motor socket
+
+    /**
+     *  To control the spindle speed and have an LCD you must sacrifice
+     *  the Extruder and pull some signals off the X stepper driver socket.
+     *
+     *  The following assumes:
+     *   - The X stepper driver socket is empty
+     *   - The extruder driver socket has a driver board plugged into it
+     *   - The X stepper wires are attached the the extruder connector
+     */
+
+    /**
+     *  Where to get the spindle signals
+     *
+     *      spindle signal          socket name       socket name
+     *                                         -------
+     *                               /ENABLE  O|     |O  VMOT
+     *                                   MS1  O|     |O  GND
+     *                                   MS2  O|     |O  2B
+     *                                   MS3  O|     |O  2A
+     *                                /RESET  O|     |O  1A
+     *                                /SLEEP  O|     |O  1B
+     *  SPINDLE_LASER_PWM_PIN           STEP  O|     |O  VDD
+     *  SPINDLE_LASER_ENA_PIN         DIR  O|     |O  GND
+     *                                         -------
+     *
+     *  Note: Socket names vary from vendor to vendor.
+     */
+    #undef X_DIR_PIN
+    #undef X_ENABLE_PIN
+    #undef X_STEP_PIN
+    #define X_DIR_PIN                          0
+    #define X_ENABLE_PIN                      14
+    #define X_STEP_PIN                         1
+    #define SPINDLE_LASER_PWM_PIN             15  // Hardware PWM
+    #define SPINDLE_LASER_ENA_PIN             21  // Pullup!
+    #define SPINDLE_DIR_PIN                   -1  // No pin available on the socket for the direction pin
+  #endif
+#endif