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diff --git a/Marlin/src/pins/sanguino/pins_SETHI.h b/Marlin/src/pins/sanguino/pins_SETHI.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
+
+/**
+ * Sethi 3D_1 pin assignments - www.sethi3d.com.br
+ */
+
+/**
+ * Rev B    26 DEC 2016
+ *
+ * added pointer to a current Arduino IDE extension
+ *    this assumes that this board uses the Sanguino pin map
+ */
+
+/**
+ * A useable Arduino IDE extension (board manager) can be found at
+ * https://github.com/Lauszus/Sanguino
+ *
+ * This extension has been tested on Arduino 1.6.12 & 1.8.0
+ *
+ * Here's the JSON path:
+ * https://raw.githubusercontent.com/Lauszus/Sanguino/master/package_lauszus_sanguino_index.json
+ *
+ * When installing select 1.0.2
+ *
+ * Installation instructions can be found at https://learn.sparkfun.com/pages/CustomBoardsArduino
+ * Just use the above JSON URL instead of Sparkfun's JSON.
+ *
+ * Once installed select the Sanguino board and then select the CPU.
+ */
+
+#if NOT_TARGET(__AVR_ATmega644P__, __AVR_ATmega644__, __AVR_ATmega1284P__)
+  #error "Oops! Select 'Sanguino' in 'Tools > Boards' and 'ATmega644', 'ATmega644P', or 'ATmega1284P' in 'Tools > Processor.'"
+#endif
+
+#define BOARD_INFO_NAME "Sethi 3D_1"
+
+#ifndef GEN7_VERSION
+  #define GEN7_VERSION                        12  // v1.x
+#endif
+
+//
+// Limit Switches
+//
+#define X_STOP_PIN                             2
+#define Y_STOP_PIN                             0
+#define Z_MIN_PIN                              1
+#define Z_MAX_PIN                              0
+
+//
+// Steppers
+//
+#define X_STEP_PIN                            19
+#define X_DIR_PIN                             18
+#define X_ENABLE_PIN                          24
+
+#define Y_STEP_PIN                            23
+#define Y_DIR_PIN                             22
+#define Y_ENABLE_PIN                          24
+
+#define Z_STEP_PIN                            26
+#define Z_DIR_PIN                             25
+#define Z_ENABLE_PIN                          24
+
+#define E0_STEP_PIN                           28
+#define E0_DIR_PIN                            27
+#define E0_ENABLE_PIN                         24
+
+//
+// Temperature Sensors
+//
+#define TEMP_0_PIN                             1  // Analog Input
+#define TEMP_BED_PIN                           2  // Analog Input
+
+//
+// Heaters / Fans
+//
+#define HEATER_0_PIN                           4
+#define HEATER_BED_PIN                         3
+
+#ifndef FAN_PIN
+  #if GEN7_VERSION >= 13
+    // Gen7 v1.3 removed the fan pin
+    #define FAN_PIN                           -1
+  #else
+    #define FAN_PIN                           31
+  #endif
+#endif
+
+//
+// Misc. Functions
+//
+#define PS_ON_PIN                             15
+
+// All these generations of Gen7 supply thermistor power
+// via PS_ON, so ignore bad thermistor readings
+//#define BOGUS_TEMPERATURE_GRACE_PERIOD     2000
+
+// our pin for debugging.
+#define DEBUG_PIN                              0
+
+// our RS485 pins
+#define TX_ENABLE_PIN                         12
+#define RX_ENABLE_PIN                         13