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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 ESPA pin assignments
- * MRR ESPA is a 3D printer control board based on the ESP32 microcontroller.
- * Supports 4 stepper drivers, heated bed, single hotend.
- */
-
- #include "env_validate.h"
-
- #if EXTRUDERS > 1 || E_STEPPERS > 1
- #error "MRR ESPA only supports one E Stepper. Comment out this line to continue."
- #elif HOTENDS > 1
- #error "MRR ESPA only supports one hotend / E-stepper. Comment out this line to continue."
- #endif
-
- #define BOARD_INFO_NAME "MRR ESPA"
- #define BOARD_WEBSITE_URL "github.com/maplerainresearch/MRR_ESPA"
- #define DEFAULT_MACHINE_NAME BOARD_INFO_NAME
-
- //
- // Disable I2S stepper stream
- //
- #undef I2S_STEPPER_STREAM
- #undef I2S_WS
- #undef I2S_BCK
- #undef I2S_DATA
-
- //
- // Limit Switches
- //
- #define X_STOP_PIN 34
- #define Y_STOP_PIN 35
- #define Z_STOP_PIN 15
-
- //
- // Steppers
- //
- #define X_STEP_PIN 27
- #define X_DIR_PIN 26
- #define X_ENABLE_PIN 25
- //#define X_CS_PIN 21
-
- #define Y_STEP_PIN 33
- #define Y_DIR_PIN 32
- #define Y_ENABLE_PIN X_ENABLE_PIN
- //#define Y_CS_PIN 22
-
- #define Z_STEP_PIN 14
- #define Z_DIR_PIN 12
- #define Z_ENABLE_PIN X_ENABLE_PIN
- //#define Z_CS_PIN 5 // SS_PIN
-
- #define E0_STEP_PIN 16
- #define E0_DIR_PIN 17
- #define E0_ENABLE_PIN X_ENABLE_PIN
- //#define E0_CS_PIN 21
-
- //
- // Temperature Sensors
- //
- #define TEMP_0_PIN 36 // Analog Input
- #define TEMP_BED_PIN 39 // Analog Input
-
- //
- // Heaters / Fans
- //
- #define HEATER_0_PIN 2
- #define FAN_PIN 13
- #define HEATER_BED_PIN 4
-
- //
- // 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
-
- // Hardware serial pins
- // Add the following to Configuration.h or Configuration_adv.h to assign
- // specific pins to hardware Serial1.
- // 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
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