// Test for Driver, Stepper Motors, and ESP32
// This version is optimized for a conveyor belt that rotates in one direction.

#define x_paso 15   // Defines the STEP pin for the X-axis motor
#define x_dire 2    // Defines the DIR (Direction) pin for the X-axis motor
#define x_habi 4    // Defines the ENABLE pin for the X-axis motor

// Global Variables
int retardo = 3000;         // Delay in microseconds; a lower number makes the rotation faster
int pasos_por_vuelta = 200; // Standard for 1.8-degree motors (360° / 1.8° = 200 steps)

// Setup runs once when the board is powered on
void setup() {
  // Configures the pins as OUTPUT to send control signals to the motor driver
  pinMode(x_paso, OUTPUT);
  pinMode(x_dire, OUTPUT);
  pinMode(x_habi, OUTPUT);

  // The Enable pin is set to LOW once to keep the driver always active
  // This prevents the motor from losing its position or "letting go" between turns
  digitalWrite(x_habi, LOW); 

  // The direction is fixed to HIGH at the start because the motor moves continuously in one direction
  // You can change HIGH to LOW here if you need to reverse the fixed rotation sense
  digitalWrite(x_dire, HIGH); 
}     

void loop() {
  // This 'for' loop executes exactly 200 steps to complete one full rotation
  // 'int i = 0' starts the counter, 'i < pasos_por_vuelta' sets the limit, 
  // and 'i++' adds one step per cycle until the turn is complete
  for(int i = 0; i < pasos_por_vuelta; i++){
    // Creating a Step Pulse:
    digitalWrite(x_paso, HIGH);    // Switches the step pin to HIGH to initiate a physical step
    delayMicroseconds(retardo);   // Maintains the HIGH state for a specific duration (defines speed)
    digitalWrite(x_paso, LOW);     // Switches the step pin to LOW to complete the pulse cycle
    delayMicroseconds(retardo);   // Wait time before the next pulse begins
  }
  
  // After completing a full turn (200 steps), the motor stops for 5000 milliseconds
  // This 5-second pause represents the time needed to carry out the corresponding process
  delay(5000); 
}

/* * NOTE ON CODE EVOLUTION:
 * The original 'giro' function and LED control (pin 33) were removed
 * because the conveyor belt now follows a simpler, one-direction continuous path.
 * All logic is integrated into the loop to ensure predictable movement and timing.
 */