text: /**
   * 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
  
  /**
   *  Rev B  2 JUN 2017
   *
   *  Converted to Arduino pin numbering
   */
  
  /**
   *  There are two Arduino IDE extensions that are compatible with this board
   *  and with the mainstream Marlin software.
   *
   *  Teensyduino - https://www.pjrc.com/teensy/teensyduino.html
   *    Select Teensy++ 2.0 in Arduino IDE from the 'Tools > Board' menu
   *
   *    Installation instructions are at the above URL.  Don't bother loading the
   *    libraries - they are not used with the Marlin software.
   *
   *  Printrboard - https://github.com/scwimbush/Printrboard-HID-Arduino-IDE-Support
   *
   *    Installation:
   *
   *       1. Go to the above URL, click on the "Clone or Download" button and then
   *          click on "Download ZIP" button.
   *       2. Unzip the file, find the "printrboard" directory and then copy it to the
   *          hardware directory in Arduino.  The Arduino hardware directory will probably
   *          be located in a path similar to this: C:\Program Files (x86)\Arduino\hardware.
   *       3. Restart Arduino.
   *       4. Select "Printrboard" from the 'Tools > Board' menu.
   *
   *  Teensyduino is the most popular option. Printrboard is used if your board doesn't have
   *  the Teensyduino bootloader on it.
   */
  
  /**
   *  To burn the bootloader that comes with Printrboard:
   *
   *   1. Connect your programmer to the board.
   *   2. In the Arduino IDE select "Printrboard" and then select the programmer.
   *   3. In the Arduino IDE click on "burn bootloader". Don't worry about the "verify failed at 1F000" error message.
   *   4. The programmer is no longer needed. Remove it.
   */
  
  #include "env_validate.h"
  
  #define BOARD_INFO_NAME         "SAV MkI"
  #define DEFAULT_MACHINE_NAME    BOARD_INFO_NAME
  #define DEFAULT_SOURCE_CODE_URL "tinyurl.com/onru38b"
  
  //
  // Servos
  //
  #define SERVO0_PIN                            39  // F1  In teensy's pin definition for pinMode (in servo.cpp)
  
  //
  // Limit Switches
  //
  #define X_STOP_PIN                            25  // B5
  #define Y_STOP_PIN                            26  // B6
  //#define Z_STOP_PIN                          27  // B7
  #define Z_STOP_PIN                            36  // E4 For inductive sensor.
  //#define E_STOP_PIN                          36  // E4
  
  //
  // Steppers
  //
  #define X_STEP_PIN                            28  // A0
  #define X_DIR_PIN                             29  // A1
  #define X_ENABLE_PIN                          19  // E7
  
  #define Y_STEP_PIN                            30  // A2
  #define Y_DIR_PIN                             31  // A3
  #define Y_ENABLE_PIN                          18  // E6
  
  #define Z_STEP_PIN                            32  // A4
  #define Z_DIR_PIN                             33  // A5
  #define Z_ENABLE_PIN                          17  // C7
  
  #define E0_STEP_PIN                           34  // A6
  #define E0_DIR_PIN                            35  // A7
  #define E0_ENABLE_PIN                         13  // C3
  
  //
  // Temperature Sensors
  //
  #define TEMP_0_PIN                             7  // F7  Analog Input (Extruder)
  #define TEMP_BED_PIN                           6  // F6  Analog Input (Bed)
  
  //
  // Heaters / Fans
  //
  #define HEATER_0_PIN                          15  // C5 PWM3B - Extruder
  #define HEATER_BED_PIN                        14  // C4 PWM3C - Bed
  
  #ifndef FAN_PIN
    #define FAN_PIN                             16  // C6 PWM3A
  #endif
  
  //
  // Misc. Functions
  //
  #define SDSS                                  20  // B0
  
  // Extension header pin mapping
  // ----------------------------
  //  SCL (I2C)-D0    A0 (An), IO
  //  SDA (I2C)-D1    A1 (An), IO
  //  RX1-D2          A2 (An), IO
  //  TX1-D3          A3 (An), IO
  //  PWM-D24         A4 (An), IO
  //  5V              GND
  //  12V             GND
  #define EXT_AUX_SCL_D0                         0  // D0  PWM0B
  #define EXT_AUX_SDA_D1                         1  // D1
  #define EXT_AUX_RX1_D2                         2  // D2
  #define EXT_AUX_TX1_D3                         3  // D3
  #define EXT_AUX_PWM_D24                       24  // B4  PWM2A
  #define EXT_AUX_A0                             0  // F0  Analog Input
  #define EXT_AUX_A0_IO                         38  // F0  Digital IO
  #define EXT_AUX_A1                             1  // F1  Analog Input
  #define EXT_AUX_A1_IO                         39  // F1  Digital IO
  #define EXT_AUX_A2                             2  // F2  Analog Input
  #define EXT_AUX_A2_IO                         40  // F2  Digital IO
  #define EXT_AUX_A3                             3  // F3  Analog Input
  #define EXT_AUX_A3_IO                         41  // F3  Digital IO
  #define EXT_AUX_A4                             4  // F4  Analog Input
  #define EXT_AUX_A4_IO                         42  // F4  Digital IO
  
  //
  // LCD / Controller
  //
  #define BEEPER_PIN                            -1
  #define LCD_PINS_RS                           -1
  #define LCD_PINS_ENABLE                       -1
  
  #if ENABLED(SAV_3DLCD)
    // For LCD SHIFT register LCD
    #define SR_DATA_PIN             EXT_AUX_SDA_D1
    #define SR_CLK_PIN              EXT_AUX_SCL_D0
  #endif
  
  #if EITHER(SAV_3DLCD, SAV_3DGLCD)
  
    #define BTN_EN1                  EXT_AUX_A1_IO
    #define BTN_EN2                  EXT_AUX_A0_IO
    #define BTN_ENC                EXT_AUX_PWM_D24
  
    #define KILL_PIN                 EXT_AUX_A2_IO
    #define HOME_PIN                 EXT_AUX_A4_IO
  
  #else                                             // Use the expansion header for spindle control
  
    //
    // M3/M4/M5 - Spindle/Laser Control
    //
    #define SPINDLE_LASER_PWM_PIN               24  // B4  PWM2A
    #define SPINDLE_LASER_ENA_PIN               39  // F1  Pin should have a pullup!
    #define SPINDLE_DIR_PIN                     40  // F2
  
    #define CASE_LIGHT_PIN                       0  // D0  PWM0B
  
  #endif
  