https://github.com/giljr/N.A.V.E-TECH-UNIR-Samsung-da-Amazonia

46_UNIR_NEMA17_12VDC_multi_test_code.ino

 /*Project: 
      46_UNIR_NEMA17_12VDC_multi_test_code.ino
      Link: https://medium.com/jungletronics/nema-17-stepper-motor-test-1d05aec10f91
   
   Objective:   
      This code allows you to control the NEMA 17 stepper motor in different
      micro-stepping modes (full, half, quarter, eighth, sixteenth,  and thirty second steps).
      It was developed during the N.A.V.E TECH UNIR Samsung Eletrônica da Amazônia LTDA
      In Porto Velho - RO - Brazil, Course from November 2023 to April 2024. 
      The project was supervised by Professor Dr. Ciro José Egoavil Montero 
      (https://www.linkedin.com/in/ciro-j-egoavil-210b7a44/?originalSubdomain=br), 
      an Associate Professor III in Electrical Engineering at the Federal University of Rondônia (UNIR).
      
   homePage :   https://medium.com/jungletronics/drv8825-driver-stepper-motor-24byj48-bb14237f4066        

   Author:      OLIVEIRA, Gilberto Jr (J3)
   
   Hardware:    Development Boards:
                     Arduino R3
                    (https://www.arduino.cc/)
                    Nema 17 Stepper Motor 42-34 12v
                    (https://www.amazon.ca/iMetrx-Creality-Printers-Extruder-Y-Axtruder/dp/B092QXLJHT/ref=pd_lpo_sccl_3/146-5301297-0385118?pd_rd_w=xpwcv&content-id=amzn1.sym.135c60bb-68cb-4d34-ae94-a6f8d634fb42&pf_rd_p=135c60bb-68cb-4d34-ae94-a6f8d634fb42&pf_rd_r=SKD3JHEZWCEP6N7910F8&pd_rd_wg=zM6pX&pd_rd_r=d730d0f7-ea20-4ec2-b036-88783ab81aae&pd_rd_i=B092QXLJHT&th=1)
                    DRV8825 45-V, 2.5-A bipolar stepper motor driver with current regulation and 1/32 microstepping  
                    (https://www.ti.com/product/DRV8825?utm_source=google&utm_medium=cpc&utm_campaign=asc-null-null-GPN_EN-cpc-pf-google-wwe_cons&utm_content=DRV8825&ds_k=DRV8825+Datasheet&DCM=yes&gad_source=1&gclid=CjwKCAiA_OetBhAtEiwAPTeQZ7UEY9qKZbSNji_WYCjNKDLdjfRKbb8m2QQiJ7UeLOVOkT2Q8_WRKBoC-hoQAvD_BwE&gclsrc=aw.ds)
   
   Connections: See Fritzing (Link above)

    Output:    Full Step Mode
               1/2 Step Mode
               1/4 Step Mode
               1/16 Step Mode
                ....

   Based on:   Basic example code for controlling a stepper without library  
                 by Dejan, https://howtomechatronics.com`
                 https://youtu.be/7spK_BkMJys?si=KV8F5ElxrXcc1vVh

   Date:  2 Feb, 2024
   
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License v3 as published by
*/
/*   
 *   
 */

int ms1Pin   = A0;                          // Stepstick MS0 to Arduino digital pin 9
int ms2Pin   = A1;                          // Stepstock MS1 to Arduino digital pin 10
int ms3Pin   = A2;                          // Stepstick MS2 to Arduino digital pin 11

                                            // defines pins
#define stepPin A3
#define dirPin  A4 

int numSteps = 200;                         // 360/1.8 degree = 200 - NEMA17 no reduction
int rotations = 1;                          // Number of rotations of the rotor for each


int delay1  =   700;                        // Microdelay between coil activations (us)
int delay2  =   2000;                       // Normal delay (ms)
 
void setup() {
  Serial.begin(9600);
  pinMode(ms1Pin,          OUTPUT);         // MS1 set to receive Arduino signals
  pinMode(ms2Pin,          OUTPUT);         // MS2 set to receive Arduino signals
  pinMode(ms3Pin,          OUTPUT);         // MS3 set to receive Arduino signals
  
                                            // Sets the two pins as Outputs
  pinMode(stepPin,OUTPUT); 
  pinMode(dirPin,OUTPUT);
}
void loop() {
                                            // 1 step (Full)  M1, M2,M3 Step (low-low-low)
  Serial.println("Full Step Mode");
  delay(delay2);                            // Two second delay

  digitalWrite(dirPin,HIGH);                // Enables the motor to move in a particular direction
                                            
  digitalWrite(ms1Pin, LOW);
  digitalWrite(ms2Pin, LOW);
  digitalWrite(ms3Pin, LOW);
                                            // Makes 200 * 1 pulses for making one full cycle rotation
  for(int x = 0; x < numSteps * 1 * rotations; x++) {
    digitalWrite(stepPin,HIGH);             // in us delay = micro delay
    delayMicroseconds(delay1);
    digitalWrite(stepPin,LOW); 
    delayMicroseconds(delay1); 
  }

                                            // 1/2 step (half)  M1, M2,M3 Step (high-low-low)
  Serial.println("1/2 Step Mode");
  delay(delay2);                            // Two second delay

  digitalWrite(dirPin,HIGH);                // Enables the motor to move in a particular direction
                                   
  digitalWrite(ms1Pin, HIGH);
  digitalWrite(ms2Pin, LOW);
  digitalWrite(ms3Pin, LOW);
                                            // Makes 200 * 2 pulses for making one half cycle rotation
  for(int x = 0; x < numSteps * 2 * rotations; x++) {
    digitalWrite(stepPin,HIGH); 
    delayMicroseconds(delay1);              // in us delay = micro delay
    digitalWrite(stepPin,LOW); 
    delayMicroseconds(delay1); 
  }

                                            // 1/4 step (quarter)  M1, M2,M3 Step (low-high-low)
  Serial.println("1/4 Step Mode");
  delay(delay2);                            // Two second delay

  digitalWrite(dirPin,HIGH);                // Enables the motor to move in a particular direction
  
  digitalWrite(ms1Pin, LOW);
  digitalWrite(ms2Pin, HIGH);
  digitalWrite(ms3Pin, LOW);
                                            // Makes 200 pulses for making one full cycle rotation
  for(int x = 0; x < numSteps * 4 * rotations; x++) {
    digitalWrite(stepPin,HIGH); 
    delayMicroseconds(delay1);              // in us delay = micro delay
    digitalWrite(stepPin,LOW); 
    delayMicroseconds(delay1); 
  }

                                            // 1/8 step (eighth)  M1, M2,M3 Step (high-high-low)
  Serial.println("1/8 Step Mode");
  delay(delay2); // One second delay

  digitalWrite(dirPin,HIGH);                // Enables the motor to move in a particular direction
                                          
  digitalWrite(ms1Pin, HIGH);
  digitalWrite(ms2Pin, HIGH);
  digitalWrite(ms3Pin, LOW);
  	                                        // Makes 200 pulses for making one full cycle rotation
  for(int x = 0; x < numSteps * 8 * rotations; x++) {
    digitalWrite(stepPin,HIGH); 
    delayMicroseconds(delay1);              // in us delay = micro delay
    digitalWrite(stepPin,LOW); 
    delayMicroseconds(delay1); 
  }

  Serial.println("1/16 Step Mode");
  delay(delay2);                            // Two second delay

  digitalWrite(dirPin,HIGH);                // Enables the motor to move in a particular direction
                                            // Makes 200 pulses for making one full cycle rotation
  digitalWrite(ms1Pin, LOW);
  digitalWrite(ms2Pin, LOW);
  digitalWrite(ms3Pin, HIGH);

  for(int x = 0; x < numSteps * 16 * rotations; x++) {
    digitalWrite(stepPin,HIGH); 
    delayMicroseconds(delay1);              // in us delay = micro delay
    digitalWrite(stepPin,LOW); 
    delayMicroseconds(delay1); 
  }

    Serial.println("1/32 Step Mode");
  delay(delay2); 

  digitalWrite(dirPin,HIGH);                // Enables the motor to move in a particular direction
                                            // Makes 200 pulses for making one full cycle rotation
  digitalWrite(ms1Pin, HIGH);
  digitalWrite(ms2Pin, HIGH);
  digitalWrite(ms3Pin, HIGH);

  for(int x = 0; x < numSteps * 32 * rotations; x++) {
    digitalWrite(stepPin,HIGH); 
    delayMicroseconds(delay1);              // in us delay = micro delay
    digitalWrite(stepPin,LOW); 
    delayMicroseconds(delay1); 
  }

}