Creality3D v4.2.7 (#19088)

Marlin/src/core/boards.h

 #define BOARD_CHITU3D_V5              4031  // Chitu3D TronXY X5SA V5 Board
 #define BOARD_CHITU3D_V6              4032  // Chitu3D TronXY X5SA V5 Board
 #define BOARD_CREALITY_V4             4033  // Creality v4.x (STM32F103RE)
-#define BOARD_TRIGORILLA_PRO          4034  // Trigorilla Pro (STM32F103ZET6)
+#define BOARD_CREALITY_V427           4034  // Creality v4.2.7 (STM32F103RE)
+#define BOARD_TRIGORILLA_PRO          4035  // Trigorilla Pro (STM32F103ZET6)
 
 //
 // ARM Cortex-M4F

Marlin/src/pins/pins.h

   #include "stm32f1/pins_CHITU3D_V6.h"          // STM32F1                                env:chitu_f103
 #elif MB(CREALITY_V4)
   #include "stm32f1/pins_CREALITY_V4.h"         // STM32F1                                env:STM32F103RET6_creality
+#elif MB(CREALITY_V427)
+  #include "stm32f1/pins_CREALITY_V427.h"       // STM32F1                                env:STM32F103RET6_creality
 #elif MB(TRIGORILLA_PRO)
   #include "stm32f1/pins_TRIGORILLA_PRO.h"      // STM32F1                                env:trigorilla_pro
 

Marlin/src/pins/stm32f1/pins_CREALITY_V4.h

   #error "CREALITY supports up to 1 hotends / E-steppers. Comment out this line to continue."
 #endif
 
-#define BOARD_INFO_NAME      "CREALITY V4"
-#define DEFAULT_MACHINE_NAME "Ender 3 V2"
+#ifndef BOARD_INFO_NAME
+  #define BOARD_INFO_NAME      "Creality V4"
+#endif
+#ifndef DEFAULT_MACHINE_NAME
+  #define DEFAULT_MACHINE_NAME "Ender 3 V2"
+#endif
 
 //
 // EEPROM
 // Steppers
 //
 #define X_ENABLE_PIN                        PC3
-#define X_STEP_PIN                          PC2
-#define X_DIR_PIN                           PB9
+#ifndef X_STEP_PIN
+  #define X_STEP_PIN                        PC2
+#endif
+#ifndef X_DIR_PIN
+  #define X_DIR_PIN                         PB9
+#endif
 
 #define Y_ENABLE_PIN                        PC3
-#define Y_STEP_PIN                          PB8
-#define Y_DIR_PIN                           PB7
+#ifndef Y_STEP_PIN
+  #define Y_STEP_PIN                        PB8
+#endif
+#ifndef Y_DIR_PIN
+  #define Y_DIR_PIN                         PB7
+#endif
 
 #define Z_ENABLE_PIN                        PC3
-#define Z_STEP_PIN                          PB6
-#define Z_DIR_PIN                           PB5
+#ifndef Z_STEP_PIN
+  #define Z_STEP_PIN                        PB6
+#endif
+#ifndef Z_DIR_PIN
+  #define Z_DIR_PIN                         PB5
+#endif
 
 #define E0_ENABLE_PIN                       PC3
-#define E0_STEP_PIN                         PB4
-#define E0_DIR_PIN                          PB3
+#ifndef E0_STEP_PIN
+  #define E0_STEP_PIN                       PB4
+#endif
+#ifndef E0_DIR_PIN
+  #define E0_DIR_PIN                        PB3
+#endif
 
 //
 // Release PB4 (Y_ENABLE_PIN) from JTAG NRST role

Marlin/src/pins/stm32f1/pins_CREALITY_V427.h

+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (C) 2016 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/>.
+ *
+ */
+
+/**
+ * CREALITY v4.2.7 (STM32F103) board pin assignments
+ */
+
+#ifndef __STM32F1__
+  #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
+#endif
+
+#define BOARD_INFO_NAME      "Creality v4.2.7"
+#define DEFAULT_MACHINE_NAME "Creality3D"
+
+//
+// Steppers
+//
+#define X_STEP_PIN                          PB9
+#define X_DIR_PIN                           PC2
+#define Y_STEP_PIN                          PB7
+
+#define Y_DIR_PIN                           PB8
+#define Z_STEP_PIN                          PB5
+#define Z_DIR_PIN                           PB6
+
+#define E0_STEP_PIN                         PB3
+#define E0_DIR_PIN                          PB4
+
+#include "pins_CREALITY_V4.h"