Pins for GTM32 board variants (#16020)

Marlin/src/pins/stm32/pins_GTM32_MINI.h

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+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * 24 May 2018 - @chepo for STM32F103VET6
+ * Schematic: https://github.com/chepo92/Smartto/blob/master/circuit_diagram/Rostock301/Hardware_GTM32_PRO_VB.pdf
+ */
+
+#ifndef __STM32F1__
+  #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
+#endif
+
+#define BOARD_INFO_NAME      "GTM32 Pro VB"
+#define DEFAULT_MACHINE_NAME "STM32F103VET6"
+
+//#define DISABLE_DEBUG
+
+//
+// It is required to disable JTAG function because its pins are
+// used as GPIO to drive the Y axis stepper.
+// DO NOT ENABLE!
+//
+#define DISABLE_JTAG
+
+//
+// If you don't need the SWDIO functionality (any more), you may
+// disable SWD here to regain PA13/PA14 pins for other use.
+//
+//#define DISABLE_JTAGSWD
+
+// Ignore temp readings during development.
+//#define BOGUS_TEMPERATURE_GRACE_PERIOD 2000
+
+// Enable EEPROM Emulation for this board as it doesn't have EEPROM
+#define FLASH_EEPROM_EMULATION
+#define E2END 0xFFF // 4KB
+
+//
+// Limit Switches
+//
+#define X_MIN_PIN          PE5   // ENDSTOPS 15,17
+#define X_MAX_PIN          PE4   // ENDSTOPS 16,18
+#define Y_MIN_PIN          PE3   // ENDSTOPS 9,11
+#define Y_MAX_PIN          PE2   // ENDSTOPS 10,12
+#define Z_MIN_PIN          PE1   // ENDSTOPS 3,5
+#define Z_MAX_PIN          PE0   // ENDSTOPS 4,6
+
+//
+// Steppers
+//
+#define X_STEP_PIN         PC6
+#define X_DIR_PIN          PD13
+#define X_ENABLE_PIN       PA8
+
+#define Y_STEP_PIN         PA12
+#define Y_DIR_PIN          PA11
+#define Y_ENABLE_PIN       PA15
+
+#define Z_STEP_PIN         PD6
+#define Z_DIR_PIN          PD3
+#define Z_ENABLE_PIN       PB3
+
+// Extruder stepper pins
+// NOTE: Numbering here is made according to EXT connector numbers,
+//       the FANx_PWM line numbering in the schematics is reverse.
+//       That is, E0_*_PIN are the E2_* lines connected to E2_A1 step
+//       stick that drives the EXT0 output on the board.
+//
+#define E0_STEP_PIN        PC14
+#define E0_DIR_PIN         PC13
+#define E0_ENABLE_PIN      PC15
+
+#define E1_STEP_PIN        PA0
+#define E1_DIR_PIN         PB6
+#define E1_ENABLE_PIN      PA1
+
+#define E2_STEP_PIN        PB2
+#define E2_DIR_PIN         PB11
+#define E2_ENABLE_PIN      PC4
+
+//
+// Heaters / Fans
+//
+#define HEATER_0_PIN       PB0   // EXT0 port
+#define HEATER_1_PIN       PB5   // EXT1 port
+#define HEATER_2_PIN       PB4   // EXT2 port
+#define HEATER_BED_PIN     PB1   // CON2X3 hotbed port
+
+//
+// These are FAN PWM pins on EXT0..EXT2 connectors.
+//
+//#define FAN_PIN            PB9   // EXT0 port
+#define ORIG_E0_AUTO_FAN_PIN PB9   // EXT0 port, used as main extruder fan
+#define FAN1_PIN           PB8   // EXT1 port
+#define FAN2_PIN           PB7   // EXT2 port
+
+//
+// Temperature Sensors
+//
+#define TEMP_0_PIN         PC2   // EXT0 port
+#define TEMP_1_PIN         PC1   // EXT1 port
+#define TEMP_2_PIN         PC0   // EXT2 port
+#define TEMP_BED_PIN       PC3   // CON2X3 hotbed port
+
+//
+// Misc. Functions
+//
+#define LED_PWM            PD12   // External LED, pin 2 on LED labeled connector
+
+//
+// LCD / Controller
+//
+#if HAS_SPI_LCD
+
+  #if ENABLED(REPRAP_DISCOUNT_SMART_CONTROLLER)
+    //
+    // LCD display on J2 FFC40
+    // Geeetech's LCD2004A Control Panel is very much like
+    // RepRapDiscount Smart Controller, but adds an FFC40 connector
+    //
+    #define LCD_PINS_RS    PE6   // CS chip select /SS chip slave select
+    #define LCD_PINS_ENABLE PE14 // SID (MOSI)
+    #define LCD_PINS_D4    PD8   // SCK (CLK) clock
+    #define LCD_PINS_D5    PD9
+    #define LCD_PINS_D6    PD10
+    #define LCD_PINS_D7    PE15
+
+  #else
+    //
+    // Serial LCDs can be implemented in ExtUI
+    //
+    //#define LCD_UART_TX    PD8
+    //#define LCD_UART_RX    PD9
+  #endif
+
+  #if HAS_GRAPHICAL_LCD
+    #define BOARD_ST7920_DELAY_1 DELAY_NS(96)
+    #define BOARD_ST7920_DELAY_2 DELAY_NS(48)
+    #define BOARD_ST7920_DELAY_3 DELAY_NS(715)
+  #endif
+
+#endif // HAS_SPI_LCD
+
+#if ENABLED(REPRAP_DISCOUNT_SMART_CONTROLLER)
+  //
+  // Geeetech's LCD2004A Control Panel is very much like
+  // RepRapDiscount Smart Controller, but adds an FFC40 connector
+  // connected with a flat wire to J2 connector on the board.
+  //
+  #define BTN_EN1          PE8
+  #define BTN_EN2          PE9
+  #define BTN_ENC          PE13
+
+  #define GTM32_PRO_VB_USE_LCD_BEEPER
+  #define GTM32_PRO_VB_USE_EXT_SDCARD
+#endif
+
+//
+// Beeper
+//
+#ifdef GTM32_PRO_VB_USE_LCD_BEEPER
+  // This is pin 32 on J2 FFC40 and pin, goes to the beeper
+  // on Geeetech's version of RepRapDiscount Smart Controller
+  // (e.g. on Rostock 301)
+  #define BEEPER_PIN       PE12
+#else
+  // This is the beeper on the board itself
+  #define BEEPER_PIN       PB10
+#endif
+
+/**
+ * The on-board TF_CARD_SOCKET microSD card socket has no SD Detect pin wired.
+ *
+ * The FFC10 (SD_CARD) connector has the same pins as those routed to the FFC40 (J2)
+ * connector, which usually go to the SD Card slot on the Geeetech version of the
+ * RepRapDiscount Smart Controller. Both connectors have the card detect signal.
+ *
+ * The on-board SD card and the external card (on either SD_CARD or J2) are two
+ * separate devices and can work simultaneously. Unfortunately, Marlin only supports
+ * a single SPI Flash device (as of 2019-07-05) so only one is enabled here.
+ */
+#if ENABLED(GTM32_PRO_VB_USE_EXT_SDCARD)
+  //
+  // SD Card on RepRapDiscount Smart Controller (J2) or on SD_CARD connector
+  //
+  #define SS_PIN           PC11
+  #define SCK_PIN          PC12
+  #define MOSI_PIN         PD2
+  #define MISO_PIN         PC8
+  #define SD_DETECT_PIN    PC7
+#else
+  //
+  // Use the on-board card socket labeled TF_CARD_SOCKET
+  //
+  #define SS_PIN           PA4
+  #define SCK_PIN          PA5
+  #define MOSI_PIN         PA7
+  #define MISO_PIN         PA6
+  #define SD_DETECT_PIN    -1  // Card detect is not connected
+#endif
+
+#define SDSS               SS_PIN
+
+//
+// ESP WiFi can be soldered to J9 connector which is wired to USART2.
+// Must define WIFISUPPORT in Configuration.h for the printer.
+//
+#define ESP_WIFI_MODULE_COM       2
+#define ESP_WIFI_MODULE_BAUDRATE  115200
+#define ESP_WIFI_MODULE_RESET_PIN -1

Marlin/src/pins/stm32/pins_GTM32_MINI_A30.h

@@ -0,0 +1,230 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * 24 May 2018 - @chepo for STM32F103VET6
+ * Schematic: https://github.com/chepo92/Smartto/blob/master/circuit_diagram/Rostock301/Hardware_GTM32_PRO_VB.pdf
+ */
+
+#ifndef __STM32F1__
+  #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
+#endif
+
+#define BOARD_INFO_NAME      "GTM32 Pro VB"
+#define DEFAULT_MACHINE_NAME "STM32F103VET6"
+
+//#define DISABLE_DEBUG
+
+//
+// It is required to disable JTAG function because its pins are
+// used as GPIO to drive the Y axis stepper.
+// DO NOT ENABLE!
+//
+#define DISABLE_JTAG
+
+//
+// If you don't need the SWDIO functionality (any more), you may
+// disable SWD here to regain PA13/PA14 pins for other use.
+//
+//#define DISABLE_JTAGSWD
+
+// Ignore temp readings during development.
+//#define BOGUS_TEMPERATURE_GRACE_PERIOD 2000
+
+// Enable EEPROM Emulation for this board as it doesn't have EEPROM
+#define FLASH_EEPROM_EMULATION
+#define E2END 0xFFF // 4KB
+
+//
+// Limit Switches
+//
+#define X_MIN_PIN          PE5   // ENDSTOPS 15,17
+#define X_MAX_PIN          PE4   // ENDSTOPS 16,18
+#define Y_MIN_PIN          PE3   // ENDSTOPS 9,11
+#define Y_MAX_PIN          PE2   // ENDSTOPS 10,12
+#define Z_MIN_PIN          PE0   // ENDSTOPS 3,5
+#define Z_MAX_PIN          PE1   // ENDSTOPS 4,6
+
+//
+// Steppers
+//
+#define X_STEP_PIN         PC6
+#define X_DIR_PIN          PD13
+#define X_ENABLE_PIN       PA8
+
+#define Y_STEP_PIN         PA12
+#define Y_DIR_PIN          PA11
+#define Y_ENABLE_PIN       PA15
+
+#define Z_STEP_PIN         PD6
+#define Z_DIR_PIN          PD3
+#define Z_ENABLE_PIN       PB3
+
+// Extruder stepper pins
+// NOTE: Numbering here is made according to EXT connector numbers,
+//       the FANx_PWM line numbering in the schematics is reverse.
+//       That is, E0_*_PIN are the E2_* lines connected to E2_A1 step
+//       stick that drives the EXT0 output on the board.
+//
+#define E0_STEP_PIN        PC14
+#define E0_DIR_PIN         PC13
+#define E0_ENABLE_PIN      PC15
+
+#define E1_STEP_PIN        PA0
+#define E1_DIR_PIN         PB6
+#define E1_ENABLE_PIN      PA1
+
+#define E2_STEP_PIN        PB2
+#define E2_DIR_PIN         PB11
+#define E2_ENABLE_PIN      PC4
+
+//
+// Heaters / Fans
+//
+#define HEATER_0_PIN       PB0   // EXT0 port
+#define HEATER_1_PIN       PB5   // EXT1 port
+#define HEATER_2_PIN       PB4   // EXT2 port
+#define HEATER_BED_PIN     PB1   // CON2X3 hotbed port
+
+//
+// These are FAN PWM pins on EXT0..EXT2 connectors.
+//
+//#define FAN_PIN            PB9   // EXT0 port
+#define ORIG_E0_AUTO_FAN_PIN PB9   // EXT0 port, used as main extruder fan
+#define FAN1_PIN           PB8   // EXT1 port
+#define FAN2_PIN           PB7   // EXT2 port
+
+//
+// Temperature Sensors
+//
+#define TEMP_0_PIN         PC2   // EXT0 port
+#define TEMP_1_PIN         PC1   // EXT1 port
+#define TEMP_2_PIN         PC0   // EXT2 port
+#define TEMP_BED_PIN       PC3   // CON2X3 hotbed port
+
+//
+// Misc. Functions
+//
+#define LED_PWM            PD12   // External LED, pin 2 on LED labeled connector
+
+//
+// LCD / Controller
+//
+#if HAS_SPI_LCD
+
+  #if ENABLED(REPRAP_DISCOUNT_SMART_CONTROLLER)
+    //
+    // LCD display on J2 FFC40
+    // Geeetech's LCD2004A Control Panel is very much like
+    // RepRapDiscount Smart Controller, but adds an FFC40 connector
+    // connected with a flat wire to J2 connector on the board.
+    //
+    #define LCD_PINS_RS    PE6   // CS chip select /SS chip slave select
+    #define LCD_PINS_ENABLE PE14 // SID (MOSI)
+    #define LCD_PINS_D4    PD8   // SCK (CLK) clock
+    #define LCD_PINS_D5    PD9
+    #define LCD_PINS_D6    PD10
+    #define LCD_PINS_D7    PE15
+
+    #define BTN_EN1          PE8
+    #define BTN_EN2          PE9
+    #define BTN_ENC          PE13
+
+    #define GTM32_PRO_VB_USE_LCD_BEEPER
+    #define GTM32_PRO_VB_USE_EXT_SDCARD
+
+  #else
+    //
+    // Serial LCDs can be implemented in ExtUI
+    //
+    //#define LCD_UART_TX    PD8
+    //#define LCD_UART_RX    PD9
+  #endif
+
+  #if HAS_GRAPHICAL_LCD
+    #ifndef BOARD_ST7920_DELAY_1
+      #define BOARD_ST7920_DELAY_1 DELAY_NS(96)
+    #endif
+    #ifndef BOARD_ST7920_DELAY_2
+      #define BOARD_ST7920_DELAY_2 DELAY_NS(48)
+    #endif
+    #ifndef BOARD_ST7920_DELAY_3
+      #define BOARD_ST7920_DELAY_3 DELAY_NS(715)
+    #endif
+  #endif
+
+#endif // HAS_SPI_LCD
+
+//
+// Beeper
+//
+#ifdef GTM32_PRO_VB_USE_LCD_BEEPER
+  // This is pin 32 on J2 FFC40 and pin, goes to the beeper
+  // on Geeetech's version of RepRapDiscount Smart Controller
+  // (e.g. on Rostock 301)
+  #define BEEPER_PIN       PE12
+#else
+  // This is the beeper on the board itself
+  #define BEEPER_PIN       PB10
+#endif
+
+/**
+ * The on-board TF_CARD_SOCKET microSD card socket has no SD Detect pin wired.
+ *
+ * The FFC10 (SD_CARD) connector has the same pins as those routed to the FFC40 (J2)
+ * connector, which usually go to the SD Card slot on the Geeetech version of the
+ * RepRapDiscount Smart Controller. Both connectors have the card detect signal.
+ *
+ * The on-board SD card and the external card (on either SD_CARD or J2) are two
+ * separate devices and can work simultaneously. Unfortunately, Marlin only supports
+ * a single SPI Flash device (as of 2019-07-05) so only one is enabled here.
+ */
+#if ENABLED(GTM32_PRO_VB_USE_EXT_SDCARD)
+  //
+  // SD Card on RepRapDiscount Smart Controller (J2) or on SD_CARD connector
+  //
+  #define SS_PIN           PC11
+  #define SCK_PIN          PC12
+  #define MOSI_PIN         PD2
+  #define MISO_PIN         PC8
+  #define SD_DETECT_PIN    PC7
+#else
+  //
+  // Use the on-board card socket labeled TF_CARD_SOCKET
+  //
+  #define SS_PIN           PA4
+  #define SCK_PIN          PA5
+  #define MOSI_PIN         PA7
+  #define MISO_PIN         PA6
+  #define SD_DETECT_PIN    -1  // Card detect is not connected
+#endif
+
+#define SDSS               SS_PIN
+
+//
+// ESP WiFi can be soldered to J9 connector which is wired to USART2.
+// Must define WIFISUPPORT in Configuration.h for the printer.
+//
+#define ESP_WIFI_MODULE_COM       2
+#define ESP_WIFI_MODULE_BAUDRATE  115200
+#define ESP_WIFI_MODULE_RESET_PIN -1

Marlin/src/pins/stm32/pins_GTM32_REV_B.h

@@ -0,0 +1,232 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2019 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 <http://www.gnu.org/licenses/>.
+ *
+ */
+#pragma once
+
+/**
+ * 24 May 2018 - @chepo for STM32F103VET6
+ * Schematic: https://github.com/chepo92/Smartto/blob/master/circuit_diagram/Rostock301/Hardware_GTM32_PRO_VB.pdf
+ */
+
+#ifndef __STM32F1__
+  #error "Oops! Select an STM32F1 board in 'Tools > Board.'"
+#endif
+
+#define BOARD_NAME           "GTM32 Pro VB"
+#define DEFAULT_MACHINE_NAME "M201"
+
+//#define DISABLE_DEBUG
+
+//
+// It is required to disable JTAG function because its pins are
+// used as GPIO to drive the Y axis stepper.
+// DO NOT ENABLE!
+//
+#define DISABLE_JTAG
+
+//
+// If you don't need the SWDIO functionality (any more), you may
+// disable SWD here to regain PA13/PA14 pins for other use.
+//
+//#define DISABLE_JTAGSWD
+
+// Ignore temp readings during development.
+//#define BOGUS_TEMPERATURE_GRACE_PERIOD 2000
+
+// Enable EEPROM Emulation for this board as it doesn't have EEPROM
+#define FLASH_EEPROM_EMULATION
+#define E2END 0xFFF // 4KB
+
+//
+// Limit Switches
+//
+#define X_MIN_PIN          PE5   // ENDSTOPS 15,17
+#define X_MAX_PIN          PE4   // ENDSTOPS 16,18
+#define Y_MIN_PIN          PE3   // ENDSTOPS 9,11
+#define Y_MAX_PIN          PE2   // ENDSTOPS 10,12
+#define Z_MIN_PIN          PE1   // ENDSTOPS 3,5
+#define Z_MAX_PIN          PE0   // ENDSTOPS 4,6
+
+//
+// Steppers
+//
+#define X_STEP_PIN         PC6
+#define X_DIR_PIN          PD13
+#define X_ENABLE_PIN       PA8
+
+#define Y_STEP_PIN         PA12
+#define Y_DIR_PIN          PA11
+#define Y_ENABLE_PIN       PA15
+
+#define Z_STEP_PIN         PD6
+#define Z_DIR_PIN          PD3
+#define Z_ENABLE_PIN       PB3
+
+// Extruder stepper pins
+// NOTE: Numbering here is made according to EXT connector numbers,
+//       the FANx_PWM line numbering in the schematics is reverse.
+//       That is, E0_*_PIN are the E2_* lines connected to E2_A1 step
+//       stick that drives the EXT0 output on the board.
+//
+#define E0_STEP_PIN        PC14
+#define E0_DIR_PIN         PC13
+#define E0_ENABLE_PIN      PC15
+
+#define E1_STEP_PIN        PA0
+#define E1_DIR_PIN         PB6
+#define E1_ENABLE_PIN      PA1
+
+#define E2_STEP_PIN        PB2
+#define E2_DIR_PIN         PB11
+#define E2_ENABLE_PIN      PC4
+
+//
+// Heaters / Fans - INFO: Extruders ports are in reverse order. Pin numbers here differ from schematic. Original firmware assumes heater, fan and temp sensor on port EXT0 PB0, PB9, PC2. 
+//
+#define HEATER_0_PIN       PB0   // EXT0 port. 
+#define HEATER_1_PIN       PB5   // EXT1 port
+#define HEATER_2_PIN       PB4   // EXT2 port
+#define HEATER_BED_PIN     PB1   // CON2X3 hotbed port
+
+//
+// These are FAN PWM pins on EXT0..EXT2 connectors.
+//
+//#define FAN_PIN            PB9   // EXT0 port
+#define FAN1_PIN           PB8   // EXT1 port
+#define FAN2_PIN           PB7   // EXT2 port
+#define ORIG_E0_AUTO_FAN_PIN  PB9  // EXT0 port, used as main extruder fan
+
+//
+// Temperature Sensors
+//
+#define TEMP_0_PIN         PC2   // EXT0 port
+#define TEMP_1_PIN         PC1   // EXT1 port
+#define TEMP_2_PIN         PC0   // EXT2 port
+#define TEMP_BED_PIN       PC3   // CON2X3 hotbed port
+
+//
+// Misc. Functions
+//
+#define LED_PWM            PD12   // External LED, pin 2 on LED labeled connector
+
+//
+// LCD / Controller
+//
+#if HAS_SPI_LCD
+
+ #if ENABLED(REPRAP_DISCOUNT_SMART_CONTROLLER)
+
+    //
+    // LCD display on J2 FFC40
+    // Geeetech's LCD2004A Control Panel is very much like
+    // RepRapDiscount Smart Controller, but adds an FFC40 connector
+    // connected with a flat wire to J2 connector on the board.
+    //
+    #define LCD_PINS_RS    PE6   // CS chip select /SS chip slave select
+    #define LCD_PINS_ENABLE PE14 // SID (MOSI)
+    #define LCD_PINS_D4    PD8   // SCK (CLK) clock
+    #define LCD_PINS_D5    PD9
+    #define LCD_PINS_D6    PD10
+    #define LCD_PINS_D7    PE15
+
+    #define BTN_EN1        PE8
+    #define BTN_EN2        PE9
+    #define BTN_ENC        PE13
+
+    //#define GTM32_PRO_VB_USE_LCD_BEEPER
+    #define GTM32_PRO_VB_USE_EXT_SDCARD
+
+  #else
+    //
+    // Serial LCDs can be implemented in ExtUI
+    //
+    //#define LCD_UART_TX    PD8
+    //#define LCD_UART_RX    PD9
+  #endif
+
+  #if HAS_GRAPHICAL_LCD
+    #ifndef ST7920_DELAY_1
+      #define ST7920_DELAY_1 DELAY_NS(96)
+    #endif
+    #ifndef ST7920_DELAY_2
+      #define ST7920_DELAY_2 DELAY_NS(48)
+    #endif
+    #ifndef ST7920_DELAY_3
+      #define ST7920_DELAY_3 DELAY_NS(715)
+    #endif
+  #endif
+
+#endif // HAS_SPI_LCD
+
+//
+// Beeper
+//
+#ifdef GTM32_PRO_VB_USE_LCD_BEEPER
+  // This is pin 32 on J2 FFC40 and pin, goes to the beeper
+  // on Geeetech's version of RepRapDiscount Smart Controller
+  // (e.g. on Rostock 301)
+  #define BEEPER_PIN       PE12
+#else
+  // This is the beeper on the board itself
+  #define BEEPER_PIN       PB10
+#endif
+
+/**
+ * The on-board TF_CARD_SOCKET microSD card socket has no SD Detect pin wired.
+ *
+ * The FFC10 (SD_CARD) connector has the same pins as those routed to the FFC40 (J2)
+ * connector, which usually go to the SD Card slot on the Geeetech version of the
+ * RepRapDiscount Smart Controller. Both connectors have the card detect signal.
+ *
+ * The on-board SD card and the external card (on either SD_CARD or J2) are two
+ * separate devices and can work simultaneously. Unfortunately, Marlin only supports
+ * a single SPI Flash device (as of 2019-07-05) so only one is enabled here.
+ */
+#if ENABLED(GTM32_PRO_VB_USE_EXT_SDCARD)
+  //
+  // SD Card on RepRapDiscount Smart Controller (J2) or on SD_CARD connector
+  //
+  #define SS_PIN         PB12 / PC11 
+  #define SCK_PIN          PB13 // PC12 // PC1
+  #define MOSI_PIN         PB15 // PD2  // PD2
+  #define MISO_PIN         PB14 // PC8
+  #define SD_DETECT_PIN    PC7
+
+#else
+  //
+  // Use the on-board card socket labeled TF_CARD_SOCKET
+  //
+  #define SS_PIN           PA4
+  #define SCK_PIN          PA5
+  #define MOSI_PIN         PA7  
+  #define MISO_PIN         PA6 // PA6
+  #define SD_DETECT_PIN    -1  // Card detect is not connected
+#endif
+
+#define SDSS               SS_PIN
+
+//
+// ESP WiFi can be soldered to J9 connector which is wired to USART2.
+// Must define WIFISUPPORT in Configuration.h for the printer.
+//
+#define ESP_WIFI_MODULE_COM       2
+#define ESP_WIFI_MODULE_BAUDRATE  115200
+#define ESP_WIFI_MODULE_RESET_PIN -1