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diff --git a/Marlin/src/pins/esp32/pins_MRR_ESPE.h b/Marlin/src/pins/esp32/pins_MRR_ESPE.h
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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
+
+/**
+ * MRR ESPE pin assignments
+ * MRR ESPE is a 3D printer control board based on the ESP32 microcontroller.
+ * Supports 5 stepper drivers (using I2S stepper stream), heated bed,
+ * single hotend, and LCD controller.
+ */
+
+#if NOT_TARGET(ARDUINO_ARCH_ESP32)
+  #error "Oops! Select an ESP32 board in 'Tools > Board.'"
+#elif EXTRUDERS > 2 || E_STEPPERS > 2
+  #error "MRR ESPE only supports two E Steppers. Comment out this line to continue."
+#elif HOTENDS > 1
+  #error "MRR ESPE only supports one hotend / E-stepper. Comment out this line to continue."
+#endif
+
+#define BOARD_INFO_NAME      "MRR ESPE"
+#define BOARD_WEBSITE_URL    "github.com/maplerainresearch/MRR_ESPE"
+#define DEFAULT_MACHINE_NAME BOARD_INFO_NAME
+
+//
+// Limit Switches
+//
+#define X_STOP_PIN                            35
+#define Y_STOP_PIN                            32
+#define Z_STOP_PIN                            33
+
+//
+// Enable I2S stepper stream
+//
+#undef I2S_STEPPER_STREAM
+#define I2S_STEPPER_STREAM
+#define I2S_WS                                26
+#define I2S_BCK                               25
+#define I2S_DATA                              27
+#undef LIN_ADVANCE                                // Currently, I2S stream does not work with linear advance
+
+//
+// Steppers
+//
+#define X_STEP_PIN                           129
+#define X_DIR_PIN                            130
+#define X_ENABLE_PIN                         128
+//#define X_CS_PIN                            21
+
+#define Y_STEP_PIN                           132
+#define Y_DIR_PIN                            133
+#define Y_ENABLE_PIN                         131
+//#define Y_CS_PIN                            22
+
+#define Z_STEP_PIN                           135
+#define Z_DIR_PIN                            136
+#define Z_ENABLE_PIN                         134
+//#define Z_CS_PIN                             5  // SS_PIN
+
+#define E0_STEP_PIN                          138
+#define E0_DIR_PIN                           139
+#define E0_ENABLE_PIN                        137
+//#define E0_CS_PIN                           21
+
+#define E1_STEP_PIN                          141
+#define E1_DIR_PIN                           142
+#define E1_ENABLE_PIN                        140
+//#define E1_CS_PIN                           22
+
+#define Z2_STEP_PIN                          141
+#define Z2_DIR_PIN                           142
+#define Z2_ENABLE_PIN                        140
+//#define Z2_CS_PIN                            5
+
+//
+// Temperature Sensors
+//
+#define TEMP_0_PIN                            36  // Analog Input
+#define TEMP_1_PIN                            34  // Analog Input
+#define TEMP_BED_PIN                          39  // Analog Input
+
+//
+// Heaters / Fans
+//
+#define HEATER_0_PIN                         145  // 2
+#define FAN_PIN                              146  // 15
+#define HEATER_BED_PIN                       144  // 4
+
+#define CONTROLLER_FAN_PIN                   147
+//#define E0_AUTO_FAN_PIN                    148  // need to update Configuration_adv.h @section extruder
+//#define E1_AUTO_FAN_PIN                    149  // need to update Configuration_adv.h @section extruder
+#define FAN1_PIN                             149
+
+//
+// MicroSD card
+//
+#define SD_MOSI_PIN                           23
+#define SD_MISO_PIN                           19
+#define SD_SCK_PIN                            18
+#define SDSS                                   5
+#define USES_SHARED_SPI                           // SPI is shared by SD card with TMC SPI drivers
+
+//////////////////////////
+// LCDs and Controllers //
+//////////////////////////
+
+#if HAS_MARLINUI_U8GLIB
+
+  #define LCD_PINS_RS                         13
+  #define LCD_PINS_ENABLE                     17
+  #define LCD_PINS_D4                         16
+
+  #if ENABLED(CR10_STOCKDISPLAY)
+
+    #define BEEPER_PIN                       151
+
+  #elif IS_RRD_FG_SC
+
+    #define BEEPER_PIN                       151
+
+    //#define LCD_PINS_D5                    150
+    //#define LCD_PINS_D6                    152
+    //#define LCD_PINS_D7                    153
+
+  #else
+
+    #error "Only CR10_STOCKDISPLAY and REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER are currently supported. Comment out this line to continue."
+
+  #endif
+
+  #define BTN_EN1                              0
+  #define BTN_EN2                             12
+  #define BTN_ENC                             14
+
+#endif // HAS_MARLINUI_U8GLIB
+
+// Hardware serial pins
+// Add the following to Configuration.h or Configuration_adv.h to assign
+// specific pins to hardware Serial1 and Serial2.
+// Note: Serial2 can be defined using HARDWARE_SERIAL2_RX and HARDWARE_SERIAL2_TX but
+// MRR ESPA does not have enough spare pins for such reassignment.
+//#define HARDWARE_SERIAL1_RX                 21
+//#define HARDWARE_SERIAL1_TX                 22
+//#define HARDWARE_SERIAL2_RX                  2
+//#define HARDWARE_SERIAL2_TX                  4