Prusa MINI Firmware overview
pins_ESP32.h
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1 /**
2  * Marlin 3D Printer Firmware
3  * Copyright (c) 2019 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
4  *
5  * Based on Sprinter and grbl.
6  * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
7  *
8  * This program is free software: you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation, either version 3 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License
19  * along with this program. If not, see <http://www.gnu.org/licenses/>.
20  *
21  */
22 #pragma once
23 
24 /**
25  * Espressif ESP32 (Tensilica Xtensa LX6) pin assignments
26  */
27 
28 #ifndef ARDUINO_ARCH_ESP32
29  "Oops! Select an ESP32 board in 'Tools > Board.'"
30 #endif
31 
32 #define BOARD_INFO_NAME "Espressif ESP32"
33 
34 //
35 // I2S (steppers & other output-only pins)
36 //
37 #define I2S_STEPPER_STREAM
38 #define I2S_WS 25
39 #define I2S_BCK 26
40 #define I2S_DATA 27
41 
42 //
43 // Limit Switches
44 //
45 #define X_MIN_PIN 34
46 #define Y_MIN_PIN 35
47 #define Z_MIN_PIN 15
48 
49 //
50 // Steppers
51 //
52 #define X_STEP_PIN 128
53 #define X_DIR_PIN 129
54 #define X_ENABLE_PIN 130
55 //#define X_CS_PIN 0
56 
57 #define Y_STEP_PIN 131
58 #define Y_DIR_PIN 132
59 #define Y_ENABLE_PIN 133
60 //#define Y_CS_PIN 13
61 
62 #define Z_STEP_PIN 134
63 #define Z_DIR_PIN 135
64 #define Z_ENABLE_PIN 136
65 //#define Z_CS_PIN 5 // SS_PIN
66 
67 #define E0_STEP_PIN 137
68 #define E0_DIR_PIN 138
69 #define E0_ENABLE_PIN 139
70 //#define E0_CS_PIN 21
71 
72 //
73 // Temperature Sensors
74 //
75 #define TEMP_0_PIN 36 // Analog Input
76 #define TEMP_BED_PIN 39 // Analog Input
77 
78 //
79 // Heaters / Fans
80 //
81 #define HEATER_0_PIN 2
82 #define FAN_PIN 13
83 #define HEATER_BED_PIN 4
84 
85 // SPI
86 #define SDSS 5