✨ Creality v2.4.S1 (Ender 7) board (#23010)

Marlin/src/pins/pins.h

@@ -555,6 +555,8 @@
   #include "stm32f1/pins_CREALITY_V452.h"       // STM32F1                                env:STM32F103RET6_creality env:STM32F103RET6_creality_maple
 #elif MB(CREALITY_V453)
   #include "stm32f1/pins_CREALITY_V453.h"       // STM32F1                                env:STM32F103RET6_creality env:STM32F103RET6_creality_maple
+#elif MB(CREALITY_V24S1)
+  #include "stm32f1/pins_CREALITY_V24S1.h"      // STM32F1                                env:STM32F103RET6_creality env:STM32F103RET6_creality_maple
 #elif MB(TRIGORILLA_PRO)
   #include "stm32f1/pins_TRIGORILLA_PRO.h"      // STM32F1                                env:trigorilla_pro env:trigorilla_pro_maple
 #elif MB(FLY_MINI)

Marlin/src/pins/stm32f1/pins_CREALITY_V24S1.h

@@ -0,0 +1,36 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2021 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
+
+/**
+ * Creality v2.4.S1 (STM32F103RE) v101 as found in the Ender 7 board pin assignments
+ */
+
+#define BOARD_INFO_NAME      "Creality v2.4.S1 V101"
+#define DEFAULT_MACHINE_NAME "Creality3D"
+
+//
+// Heaters
+//
+#define HEATER_BED_PIN                      PA15  // HOT BED
+
+#include "pins_CREALITY_V4.h"

Marlin/src/pins/stm32f1/pins_CREALITY_V4.h

@@ -134,9 +134,12 @@
 //
 // Heaters / Fans
 //
-#define HEATER_0_PIN                        PA1   // HEATER1
-#define HEATER_BED_PIN                      PA2   // HOT BED
-
+#ifndef HEATER_0_PIN
+  #define HEATER_0_PIN                      PA1   // HEATER1
+#endif
+#ifndef HEATER_BED_PIN
+  #define HEATER_BED_PIN                    PA2   // HOT BED
+#endif
 #ifndef FAN_PIN
   #define FAN_PIN                           PA0   // FAN
 #endif