Hi, I just bought a RAMPS 1.4 board for stepper motors. Can somebody tell me if I want to use it without mounting on arduino then what will be the DIR and STP pins. I read their documentation where this code was written:
// For RAMPS 1.4
#define X_STEP_PIN 54
#define X_DIR_PIN 55
#define X_ENABLE_PIN 38
#define X_MIN_PIN 3
#define X_MAX_PIN 2
#define Y_STEP_PIN 60
#define Y_DIR_PIN 61
#define Y_ENABLE_PIN 56
#define Y_MIN_PIN 14
#define Y_MAX_PIN 15
#define Z_STEP_PIN 46
#define Z_DIR_PIN 48
#define Z_ENABLE_PIN 62
#define Z_MIN_PIN 18
#define Z_MAX_PIN 19
#define E_STEP_PIN 26
#define E_DIR_PIN 28
#define E_ENABLE_PIN 24
#define SDPOWER -1
#define SDSS 53
#define LED_PIN 13
#define FAN_PIN 9
#define PS_ON_PIN 12
#define KILL_PIN -1
#define HEATER_0_PIN 10
#define HEATER_1_PIN 8
#define TEMP_0_PIN 13 // ANALOG NUMBERING
#define TEMP_1_PIN 14 // ANALOG NUMBERING
In this code, as we can see, that STP and DIR pins for X motor are 54 and 55 respectively. But on Arduino Mega there are 53 pins. So what does it mean? In case you're having difficulty understanding my question, I need to run stepper motors using this module but without actually mounting it on arduino, instead I want to use STP and DIR pins (which I don't know where they are)
Like in this borad:
We can see that if we don't want to mount it on the top of arduino then we can simply apply STP and DIR signals from arduino and it will work. I hope you understand what I mean though I tried my best. Thanks in advance!