/*
   Forum: https://forum.arduino.cc/t/stop-the-rotation-of-stepper-motor-when-the-key-is-pressed/1164919/8
   Wokwi: https://wokwi.com/projects/374954917803485185

*/

#include <AccelStepper.h>

#define STEPS_PER_REVOLUTION 1000  // Change this to match your stepper motor's specification
#define DIR_PIN 8
#define STEP_PIN 9

const int pushButtonPin = 12;  // Replace with the actual pin connected to the push button

constexpr int maxSpeed = 2000;    // Set the maximum speed of the stepper motor (adjust as needed)
constexpr int runAtSpeed = 1000;  // Set the speed of the stepper motor (adjust as needed)

AccelStepper mystepper(AccelStepper::DRIVER, STEP_PIN, DIR_PIN);

boolean stepperOn = false;
boolean motorRunning = true;

void setup() {
  mystepper.setMaxSpeed(maxSpeed);
  pinMode(pushButtonPin, INPUT_PULLUP);
  Serial.begin(115200);
  Serial.println("Begin");
}


void loop() {
  int buttonState = digitalRead(pushButtonPin);

  if (buttonState == LOW && !stepperOn ) {
     Serial.println("Start Rotating ");
     mystepper.setSpeed(runAtSpeed);
     stepperOn = true;
  } 
  
  if (Serial.available() > 0) {
    char command = Serial.read();
    
    if (command == 's') {
      // Move stepper motor for 3 seconds
      Serial.println("Start received");
      mystepper.setSpeed(runAtSpeed);
      stepperOn = true;
    }
    if (command == 'p') {
      Serial.println("Stop received");
      mystepper.stop();
      stepperOn = false;
    }
  }
  if (stepperOn) {
    mystepper.runSpeed();
  }
}