Absolute beginner HELP !

Projects Programming
1

Hi - absolute novice !! have been taking various on line tutorials to learn Arduino coding. This is a brief synopsis.

I uploaded this scenario to ChatGPT :-

Arduino Turntable Control System

  1. I want to use an Arduino Mega 2560 to control a 360 degree turntable using a Nema 17 stepper motor.

  2. The following libraries are include :-
    ButtonFever
    AccelStepper for motor control,

  3. The Nema 17 is using full stepping. The DIR PIN is connected to pin 2 on the Arduino, The STP is connected to pin 3 on the Arduino, EN is connected to pin 4 on the Arduino, the COM is connected to the 5V on the Arduino.

  4. The Nema is powered separately from the Arduino.

  5. The stepper motor will be geared down. The exact ration is not know. This is to determine a zero point for calculated the 180 degrees movement. By using the magnetic hall effect sensor the number of steps can be determined after first triggering rotation then counting the steps until its triggered again. The magnetic hall effect sensor is on pin 8 A0, 5v, ground to provide a zero point when a magnet on the main gear passes by.

  6. Use the potentiometer on pinA3, ground and 5V to control the speed. Set the maximum counter clockwise direction speed at 0 Volts, the stationary position at 2.5 Volts and maximum clockwise direction speed at 5 Volts.

  7. Trip switches are positioned around the turntable to stop the movement in 6 positions.

  8. When a momentary button on pin 26 is pushed the turntable moves to 180 degrees of its current position.

  9. When the turntable has been stationary for 1 minute, the NEMA17 is shutdown, Moving the potentiometer starts it again.

Got this program back - see below...some of it i understand...But I've got this error message back on compiling :-

C:\Users\adria\AppData\Local\Temp.arduinoIDE-unsaved202538-16812-1s1n48v.oavw\sketch_apr8a\sketch_apr8a.ino:2:10: fatal error: ButtonFever.h: No such file or directory
#include <ButtonFever.h>
^~~~~~~~~~~~~~~
compilation terminated.
exit status 1

Compilation error: ButtonFever.h: No such file or directory the ButtonFever.h

The library has been loaded, various ways i.e. through manager and by uploading the zip file also.

Am I missing something simple. Many thanks in anticipation. Kindest Regards Adrian

Sketch below

#include <AccelStepper.h>
#include <ButtonFever.h>

const int dirPin = 2;
const int stepPin = 3;
const int enPin = 4;
const int hallSensorPin = 8;
const int potPin = A3;
const int buttonPin = 26;
const int tripPins[6] = {5, 6, 7, 9, 10, 11};  // Define the trip switch pins

AccelStepper stepper(AccelStepper::DRIVER, stepPin, dirPin);

ButtonFever button(buttonPin);

int zeroPosition = 0;
unsigned long lastMovementTime = 0;
unsigned long idleTime = 60000;  // 1 minute idle time for motor shutdown
bool motorEnabled = true;

void setup() {
  pinMode(enPin, OUTPUT);
  digitalWrite(enPin, HIGH);  // Enable stepper initially

  // Initialize trip switches
  for (int i = 0; i < 6; i++) {
    pinMode(tripPins[i], INPUT_PULLUP);
  }

  // Hall sensor setup for zero-point detection
  pinMode(hallSensorPin, INPUT);
  
  // Potentiometer setup
  analogReference(DEFAULT);

  // Button setup
  button.begin();

  // Start serial communication for debugging
  Serial.begin(9600);
}

void loop() {
  // Update button state (for 180 degree move)
  button.update();
  if (button.isPressed()) {
    move180Degrees();
  }

  // Read potentiometer value (0-1023)
  int potValue = analogRead(potPin);
  int speed = map(potValue, 0, 1023, -1000, 1000); // Map to motor speed range
  
  // Set the motor speed
  stepper.setMaxSpeed(abs(speed));
  stepper.setSpeed(speed);

  // Move the stepper motor
  stepper.runSpeed();

  // Check for Hall sensor to determine zero point (when magnet is detected)
  if (digitalRead(hallSensorPin) == HIGH) {
    zeroPosition = stepper.currentPosition();
    Serial.print("Zero position set to: ");
    Serial.println(zeroPosition);
  }

  // Check if trip switch is triggered (stopping points)
  for (int i = 0; i < 6; i++) {
    if (digitalRead(tripPins[i]) == LOW) {
      Serial.print("Trip switch triggered at position: ");
      Serial.println(i);
      stepper.stop();
    }
  }

  // Manage idle time and motor shutdown
  if (millis() - lastMovementTime > idleTime && motorEnabled) {
    disableMotor();
  }
  else if (millis() - lastMovementTime <= idleTime && !motorEnabled) {
    enableMotor();
  }

  // Update last movement time
  if (stepper.distanceToGo() != 0) {
    lastMovementTime = millis();
  }
}

// Function to move to 180 degrees from current position
void move180Degrees() {
  int currentPosition = stepper.currentPosition();
  int targetPosition = currentPosition + (zeroPosition / 2);  // Move 180 degrees (half of the full rotation)

  stepper.moveTo(targetPosition);
  while (stepper.isRunning()) {
    stepper.run();
  }
  Serial.print("Moved to 180 degrees from current position. Target: ");
  Serial.println(targetPosition);
}

// Disable motor to save power after 1 minute of inactivity
void disableMotor() {
  motorEnabled = false;
  digitalWrite(enPin, LOW);  // Disable stepper
  Serial.println("Motor disabled due to inactivity.");
}

// Re-enable motor when potentiometer is adjusted
void enableMotor() {
  motorEnabled = true;
  digitalWrite(enPin, HIGH);  // Enable stepper
  Serial.println("Motor enabled.");
}
Explanation of Key Functions:
Hall Effect Sensor:

When the magnet passes, the sensor triggers and sets the zeroPosition. This is used to calculate movement.

Speed Control:

The potentiometer's value controls the speed of the motor, mapped from 0 to 1023 into a speed range of -1000 to 1000 (for both clockwise and counterclockwise motion).

180-Degree Button:

When the button on pin 26 is pressed, the turntable rotates to 180 degrees from its current position based on the zeroPosition (calculated when the Hall effect sensor is triggered).

Trip Switches:

If any of the trip switches are activated, the motor stops immediately, ensuring the turntable doesn't overshoot a defined position.

Idle Time Shutdown:

After 1 minute of inactivity, the motor is disabled to save power. Once the potentiometer is adjusted, the motor is enabled again.
2

That sounds incorrect. I'd like to see a schematic drawn, if at all possible. Certainly, the only connection between Stepper power and Arduino Power should be GND to GND, and even that only if the stepper driver's logic section requires it. Links to the devices you're using would help with that.

Regarding ButtonFever, has a similarly named folder appeared in your libraries subdirectory, and if so, have you closed and reopened the IDE?

3

Welcome to the forum

Your problem seems to relate to programming the Arduino rather than uploading to it so has been moved to the Programming category of the forum

4

You told ChatGPT

Have you installed the ButtonFever library and if so, how did you do it ?

5

Hi - i searched for ButtonFever and then installed. then went to sketch/include library down to ButtonFever in the list. also went to the ButtonFever site and downloaded Zip and added that way as well.

6

The library example includes

# include <BfButton.h>

not ButtonFever.h.

Try that before I get to the lab.

a7

7

Hope these are of use !

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9

I have also used Deepseek before and got a different sketch but to same error code.

10

A major part of your problem stems from here…

You are not ‘programming’, and seem to have have very little idea what the code does.

GPT / Deepseek are teaching you nothing.

11

Another "tool" that never works.

Take time to learn to program Arduino.

https://www.arduino.cc/en/Tutorial/BuiltInExamples

12

I took exactly your prompt text and gave it deepseek

deepseek came up with this code

#include <AccelStepper.h>
#include <ButtonFever.h>

// Pin Definitions
#define DIR_PIN 2
#define STEP_PIN 3
#define EN_PIN 4
#define HALL_SENSOR_PIN 8
#define POT_PIN A3
#define BUTTON_PIN 26
#define TRIP_SWITCH_1 22
#define TRIP_SWITCH_2 23
#define TRIP_SWITCH_3 24
#define TRIP_SWITCH_4 25
#define TRIP_SWITCH_5 27
#define TRIP_SWITCH_6 28

// Motor Parameters
AccelStepper stepper(AccelStepper::DRIVER, STEP_PIN, DIR_PIN);
BF::Button button180(BUTTON_PIN);
long stepsPerRevolution = 0;
long stepsPer180 = 0;
bool isCalibrated = false;
unsigned long lastMovementTime = 0;
bool motorEnabled = false;
int lastPotValue = 0;
const int deadZone = 50;  // Adjust dead zone threshold as needed
const int maxSpeed = 1000; // Maximum motor speed in steps per second

void setup() {
  Serial.begin(9600);
  
  // Initialize pins
  pinMode(EN_PIN, OUTPUT);
  digitalWrite(EN_PIN, HIGH); // Disable motor initially
  pinMode(HALL_SENSOR_PIN, INPUT_PULLUP);
  
  // Initialize trip switches
  const int tripPins[] = {TRIP_SWITCH_1, TRIP_SWITCH_2, TRIP_SWITCH_3,
                         TRIP_SWITCH_4, TRIP_SWITCH_5, TRIP_SWITCH_6};
  for (int pin : tripPins) {
    pinMode(pin, INPUT_PULLUP);
  }

  button180.begin();
  stepper.setMaxSpeed(maxSpeed);
  stepper.setAcceleration(maxSpeed * 0.5);

  calibrateStepsPerRevolution();
  stepsPer180 = stepsPerRevolution / 2;
  enableMotor();
}

void loop() {
  // Read potentiometer and handle speed control
  int potValue = analogRead(POT_PIN);
  int mappedSpeed = map(potValue, 0, 1023, -maxSpeed, maxSpeed);
  
  // Apply dead zone around center position
  if (abs(potValue - 512) < deadZone) {
    mappedSpeed = 0;
  }

  // Check for potentiometer movement to wake motor
  if (abs(potValue - lastPotValue) > 10) {
    lastPotValue = potValue;
    if (!motorEnabled) {
      enableMotor();
    }
    lastMovementTime = millis();
  }

  // Check trip switches
  bool tripTriggered = false;
  const int tripPins[] = {TRIP_SWITCH_1, TRIP_SWITCH_2, TRIP_SWITCH_3,
                         TRIP_SWITCH_4, TRIP_SWITCH_5, TRIP_SWITCH_6};
  for (int pin : tripPins) {
    if (digitalRead(pin) == LOW) {
      tripTriggered = true;
      break;
    }
  }

  // Handle emergency stop
  if (tripTriggered) {
    stepper.stop();
    stepper.disableOutputs();
    motorEnabled = false;
    lastMovementTime = millis();
  }

  // Handle 180-degree button
  button180.update();
  if (button180.isPressed() && !tripTriggered && motorEnabled) {
    long target = stepper.currentPosition() + stepsPer180;
    stepper.moveTo(target);
    lastMovementTime = millis();
  }

  // Motor control logic
  if (stepper.distanceToGo() != 0) {
    stepper.run();
    lastMovementTime = millis();
  } else if (motorEnabled && !tripTriggered) {
    stepper.setSpeed(mappedSpeed);
    stepper.runSpeed();
    if (mappedSpeed != 0) lastMovementTime = millis();
  }

  // Handle motor shutdown after 1 minute of inactivity
  if (motorEnabled && (millis() - lastMovementTime) > 60000) {
    disableMotor();
  }
}

void calibrateStepsPerRevolution() {
  enableMotor();
  stepper.setSpeed(200); // Slow calibration speed
  
  // Move until first sensor trigger
  while (digitalRead(HALL_SENSOR_PIN)) {
    stepper.runSpeed();
  }
  long firstPosition = stepper.currentPosition();

  // Move until sensor releases
  while (!digitalRead(HALL_SENSOR_PIN)) {
    stepper.runSpeed();
  }

  // Move until second trigger
  while (digitalRead(HALL_SENSOR_PIN)) {
    stepper.runSpeed();
  }
  long secondPosition = stepper.currentPosition();

  stepsPerRevolution = abs(secondPosition - firstPosition);
  stepper.setCurrentPosition(0);
  Serial.print("Calibrated steps per revolution: ");
  Serial.println(stepsPerRevolution);
}

void enableMotor() {
  digitalWrite(EN_PIN, LOW);
  motorEnabled = true;
  lastMovementTime = millis();
  Serial.println("Motor enabled");
}

void disableMotor() {
  digitalWrite(EN_PIN, HIGH);
  motorEnabled = false;
  Serial.println("Motor disabled");
}

I confronted deepseek with the compiler-error

deepseek if I compile your code I get this error-message exit status 1
ButtonFever.h: No such file or directory

deepseek removed buttonfever and posted a modified code-snippet.
Typical AI reaction try to save computation time
So I explicitly told deepseek

deepseek output the FULL functional code

deepseek obeyed

#include <AccelStepper.h>

// Pin Definitions
#define DIR_PIN 2
#define STEP_PIN 3
#define EN_PIN 4
#define HALL_SENSOR_PIN 8
#define POT_PIN A3
#define BUTTON_PIN 26
#define TRIP_SWITCH_1 22
#define TRIP_SWITCH_2 23
#define TRIP_SWITCH_3 24
#define TRIP_SWITCH_4 25
#define TRIP_SWITCH_5 27
#define TRIP_SWITCH_6 28

// Motor Parameters
AccelStepper stepper(AccelStepper::DRIVER, STEP_PIN, DIR_PIN);
long stepsPerRevolution = 0;
long stepsPer180 = 0;
bool isCalibrated = false;
unsigned long lastMovementTime = 0;
bool motorEnabled = false;
int lastPotValue = 0;
const int deadZone = 50;
const int maxSpeed = 1000;

// Button handling
bool buttonState = HIGH;
bool lastButtonState = HIGH;
unsigned long lastDebounceTime = 0;
const unsigned long debounceDelay = 50;

void setup() {
  Serial.begin(9600);
  
  // Initialize pins
  pinMode(EN_PIN, OUTPUT);
  digitalWrite(EN_PIN, HIGH); // Disable motor initially
  pinMode(HALL_SENSOR_PIN, INPUT_PULLUP);
  pinMode(BUTTON_PIN, INPUT_PULLUP);

  // Initialize trip switches
  const int tripPins[] = {TRIP_SWITCH_1, TRIP_SWITCH_2, TRIP_SWITCH_3,
                         TRIP_SWITCH_4, TRIP_SWITCH_5, TRIP_SWITCH_6};
  for (int i = 0; i < 6; i++) {
    pinMode(tripPins[i], INPUT_PULLUP);
  }

  stepper.setMaxSpeed(maxSpeed);
  stepper.setAcceleration(maxSpeed * 0.5);

  calibrateStepsPerRevolution();
  stepsPer180 = stepsPerRevolution / 2;
  enableMotor();
}

void loop() {
  // Handle potentiometer input
  int potValue = analogRead(POT_PIN);
  int mappedSpeed = map(potValue, 0, 1023, -maxSpeed, maxSpeed);
  
  // Apply dead zone
  if (abs(potValue - 512) < deadZone) {
    mappedSpeed = 0;
  }

  // Wake on potentiometer movement
  if (abs(potValue - lastPotValue) > 10) {
    lastPotValue = potValue;
    if (!motorEnabled) enableMotor();
    lastMovementTime = millis();
  }

  // Check trip switches
  bool tripTriggered = checkTripSwitches();

  // Handle emergency stop
  if (tripTriggered) {
    stepper.stop();
    stepper.disableOutputs();
    motorEnabled = false;
    lastMovementTime = millis();
  }

  // Handle 180-degree button with debounce
  handle180Button(tripTriggered);

  // Motor control logic
  if (stepper.distanceToGo() != 0) {
    stepper.run();
    lastMovementTime = millis();
  } else if (motorEnabled && !tripTriggered) {
    stepper.setSpeed(mappedSpeed);
    stepper.runSpeed();
    if (mappedSpeed != 0) lastMovementTime = millis();
  }

  // Auto-shutdown after 1 minute
  if (motorEnabled && (millis() - lastMovementTime) > 60000) {
    disableMotor();
  }
}

bool checkTripSwitches() {
  const int tripPins[] = {TRIP_SWITCH_1, TRIP_SWITCH_2, TRIP_SWITCH_3,
                         TRIP_SWITCH_4, TRIP_SWITCH_5, TRIP_SWITCH_6};
  for (int i = 0; i < 6; i++) {
    if (digitalRead(tripPins[i]) == LOW) return true;
  }
  return false;
}

void handle180Button(bool tripTriggered) {
  bool reading = digitalRead(BUTTON_PIN);
  
  if (reading != lastButtonState) {
    lastDebounceTime = millis();
  }

  if ((millis() - lastDebounceTime) > debounceDelay) {
    if (reading != buttonState) {
      buttonState = reading;
      if (buttonState == LOW && motorEnabled && !tripTriggered) {
        stepper.move(stepsPer180);
        lastMovementTime = millis();
      }
    }
  }
  lastButtonState = reading;
}

void calibrateStepsPerRevolution() {
  enableMotor();
  stepper.setSpeed(200);
  
  // Find first trigger
  while (digitalRead(HALL_SENSOR_PIN)) stepper.runSpeed();
  long firstPosition = stepper.currentPosition();

  // Wait for release
  while (!digitalRead(HALL_SENSOR_PIN)) stepper.runSpeed();

  // Find second trigger
  while (digitalRead(HALL_SENSOR_PIN)) stepper.runSpeed();
  long secondPosition = stepper.currentPosition();

  stepsPerRevolution = abs(secondPosition - firstPosition);
  stepper.setCurrentPosition(0);
  Serial.print("Steps per revolution: ");
  Serial.println(stepsPerRevolution);
}

void enableMotor() {
  digitalWrite(EN_PIN, LOW);
  motorEnabled = true;
  lastMovementTime = millis();
  stepper.enableOutputs();
  Serial.println("Motor enabled");
}

void disableMotor() {
  digitalWrite(EN_PIN, HIGH);
  motorEnabled = false;
  stepper.disableOutputs();
  Serial.println("Motor disabled");
}

This code does compile. But I have no idea if it really works.

The compilation-error was caused by a deviation between the libraryname in the library-manager

ButtonFever

and the filenames

#include <BfButton.h>
#include <BfButtonManager.h>

deepseek did not check for this
after correcting this manually there was another error

"C:\\Arduino-Pure-Portable\\arduino-1.8.19\\portable\\packages\\arduino\\tools\\avr-gcc\\7.3.0-atmel3.6.1-arduino7/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega2560 -DF_CPU=16000000L -DARDUINO=10819 -DARDUINO_AVR_MEGA2560 -DARDUINO_ARCH_AVR "-IC:\\Arduino-Pure-Portable\\arduino-1.8.19\\portable\\packages\\arduino\\hardware\\avr\\1.8.6\\cores\\arduino" "-IC:\\Arduino-Pure-Portable\\arduino-1.8.19\\portable\\packages\\arduino\\hardware\\avr\\1.8.6\\variants\\mega" "-IC:\\Arduino-Pure-Portable\\arduino-1.8.19\\portable\\sketchbook\\libraries\\AccelStepper\\src" "-IC:\\Arduino-Pure-Portable\\arduino-1.8.19\\portable\\sketchbook\\libraries\\ButtonFever\\src" "C:\\Users\\dipl-\\AppData\\Local\\Temp\\arduino_build_597875\\sketch\\buttonfever-turnrable-001.ino.cpp" -o "C:\\Users\\dipl-\\AppData\\Local\\Temp\\arduino_build_597875\\sketch\\buttonfever-turnrable-001.ino.cpp.o"
buttonfever-turnrable-001:22:1: error: 'BF' does not name a type; did you mean 'B1'?
 BF::Button button180(BUTTON_PIN);
 ^~
 B1
C:\Arduino-Pure-Portable\arduino-1.8.19\portable\sketchbook\buttonfever-turnrable-001\buttonfever-turnrable-001.ino: In function 'void setup()':
buttonfever-turnrable-001:47:3: error: 'button180' was not declared in this scope
   button180.begin();
   ^~~~~~~~~
C:\Arduino-Pure-Portable\arduino-1.8.19\portable\sketchbook\buttonfever-turnrable-001\buttonfever-turnrable-001.ino: In function 'void loop()':
buttonfever-turnrable-001:95:3: error: 'button180' was not declared in this scope
   button180.update();
   ^~~~~~~~~
Using library AccelStepper at version 1.64 in folder: C:\Arduino-Pure-Portable\arduino-1.8.19\portable\sketchbook\libraries\AccelStepper 
Using library ButtonFever at version 1.0 in folder: C:\Arduino-Pure-Portable\arduino-1.8.19\portable\sketchbook\libraries\ButtonFever 
exit status 1
'BF' does not name a type; did you mean 'B1'?

In the ongoing process I had to tell deepseek to completely remove the buttonfever library.
Then I got compiling code. No idea if this code is really working as intended

#include <AccelStepper.h>

// Pin Definitions
#define DIR_PIN 2
#define STEP_PIN 3
#define EN_PIN 4
#define HALL_SENSOR_PIN 8
#define POT_PIN A3
#define BUTTON_PIN 26
#define TRIP_SWITCH_1 22
#define TRIP_SWITCH_2 23
#define TRIP_SWITCH_3 24
#define TRIP_SWITCH_4 25
#define TRIP_SWITCH_5 27
#define TRIP_SWITCH_6 28

// Motor Parameters
AccelStepper stepper(AccelStepper::DRIVER, STEP_PIN, DIR_PIN);
long stepsPerRevolution = 0;
long stepsPer180 = 0;
bool isCalibrated = false;
unsigned long lastMovementTime = 0;
bool motorEnabled = false;
int lastPotValue = 0;
const int deadZone = 50;
const int maxSpeed = 1000;

// Button handling
bool buttonState = HIGH;
bool lastButtonState = HIGH;
unsigned long lastDebounceTime = 0;
const unsigned long debounceDelay = 50;

void setup() {
  Serial.begin(9600);
  
  // Initialize pins
  pinMode(EN_PIN, OUTPUT);
  digitalWrite(EN_PIN, HIGH); // Disable motor initially
  pinMode(HALL_SENSOR_PIN, INPUT_PULLUP);
  pinMode(BUTTON_PIN, INPUT_PULLUP);

  // Initialize trip switches
  const int tripPins[] = {TRIP_SWITCH_1, TRIP_SWITCH_2, TRIP_SWITCH_3,
                         TRIP_SWITCH_4, TRIP_SWITCH_5, TRIP_SWITCH_6};
  for (int i = 0; i < 6; i++) {
    pinMode(tripPins[i], INPUT_PULLUP);
  }

  stepper.setMaxSpeed(maxSpeed);
  stepper.setAcceleration(maxSpeed * 0.5);

  calibrateStepsPerRevolution();
  stepsPer180 = stepsPerRevolution / 2;
  enableMotor();
}

void loop() {
  // Handle potentiometer input
  int potValue = analogRead(POT_PIN);
  int mappedSpeed = map(potValue, 0, 1023, -maxSpeed, maxSpeed);
  
  // Apply dead zone
  if (abs(potValue - 512) < deadZone) {
    mappedSpeed = 0;
  }

  // Wake on potentiometer movement
  if (abs(potValue - lastPotValue) > 10) {
    lastPotValue = potValue;
    if (!motorEnabled) enableMotor();
    lastMovementTime = millis();
  }

  // Check trip switches
  bool tripTriggered = checkTripSwitches();

  // Handle emergency stop
  if (tripTriggered) {
    stepper.stop();
    stepper.disableOutputs();
    motorEnabled = false;
    lastMovementTime = millis();
  }

  // Handle 180-degree button with debounce
  handle180Button(tripTriggered);

  // Motor control logic
  if (stepper.distanceToGo() != 0) {
    stepper.run();
    lastMovementTime = millis();
  } else if (motorEnabled && !tripTriggered) {
    stepper.setSpeed(mappedSpeed);
    stepper.runSpeed();
    if (mappedSpeed != 0) lastMovementTime = millis();
  }

  // Auto-shutdown after 1 minute
  if (motorEnabled && (millis() - lastMovementTime) > 60000) {
    disableMotor();
  }
}

bool checkTripSwitches() {
  const int tripPins[] = {TRIP_SWITCH_1, TRIP_SWITCH_2, TRIP_SWITCH_3,
                         TRIP_SWITCH_4, TRIP_SWITCH_5, TRIP_SWITCH_6};
  for (int i = 0; i < 6; i++) {
    if (digitalRead(tripPins[i]) == LOW) return true;
  }
  return false;
}

void handle180Button(bool tripTriggered) {
  bool reading = digitalRead(BUTTON_PIN);
  
  if (reading != lastButtonState) {
    lastDebounceTime = millis();
  }

  if ((millis() - lastDebounceTime) > debounceDelay) {
    if (reading != buttonState) {
      buttonState = reading;
      if (buttonState == LOW && motorEnabled && !tripTriggered) {
        stepper.move(stepsPer180);
        lastMovementTime = millis();
      }
    }
  }
  lastButtonState = reading;
}

void calibrateStepsPerRevolution() {
  enableMotor();
  stepper.setSpeed(200);
  
  // Find first trigger
  while (digitalRead(HALL_SENSOR_PIN)) stepper.runSpeed();
  long firstPosition = stepper.currentPosition();

  // Wait for release
  while (!digitalRead(HALL_SENSOR_PIN)) stepper.runSpeed();

  // Find second trigger
  while (digitalRead(HALL_SENSOR_PIN)) stepper.runSpeed();
  long secondPosition = stepper.currentPosition();

  stepsPerRevolution = abs(secondPosition - firstPosition);
  stepper.setCurrentPosition(0);
  Serial.print("Steps per revolution: ");
  Serial.println(stepsPerRevolution);
}

void enableMotor() {
  digitalWrite(EN_PIN, LOW);
  motorEnabled = true;
  lastMovementTime = millis();
  stepper.enableOutputs();
  Serial.println("Motor enabled");
}

void disableMotor() {
  digitalWrite(EN_PIN, HIGH);
  motorEnabled = false;
  stepper.disableOutputs();
  Serial.println("Motor disabled");
}
13

me personal I prefer to use the MobaTools-library.
The mobatools library provides stepper-control and button-processing
When I told deepseek to use this library, deepseek created a lot of compiler-errors. I finally had to provide the full content of the library-files to deepseek.

It took me another five prompts to get full compilable code

This experience is very typical for AI. In Programming a lot of details must be defined very precise to get compilable code. And I guess it takes several more prompts until the code really does what you intended

so here is the code created by deepseek which does at least compile

#include <MobaTools.h>

// Pins
const int dirPin = 2;
const int stepPin = 3;
const int enablePin = 4;
const uint8_t hallPins[] = {A0};  // Digital pin 14 on Mega
const int potPin = A3;
const uint8_t buttonPin[] = {26}; // Momentary button
const uint8_t limitPins[] = {5, 6, 7, 8, 9, 10};

// Stepper parameters
MoToStepper stepper(200, STEPDIR);
const int maxRPM = 10;
const int deadZone = 30;

// Variables
enum State { CALIBRATING, NORMAL };
State currentState = CALIBRATING;
volatile unsigned long stepsPerRevolution = 0;
volatile int triggerCount = 0;              // ADDED MISSING DECLARATION
volatile long firstTriggerStep = 0;         // ADDED MISSING DECLARATION
unsigned long lastMoveTime = 0;
bool motorEnabled = true;

// Input handlers
MoToButtons hallSensor(hallPins, 1, 20, 500);
MoToButtons button(buttonPin, 1, 20, 500);
MoToButtons limits(limitPins, 6, 20, 500);

void setup() {
  Serial.begin(9600);
  
  // Initialize stepper
  stepper.attach(stepPin, dirPin);
  stepper.attachEnable(enablePin, 100, LOW);
  stepper.setSpeed(0);
  
  // Start calibration
  stepper.rotate(1);
  motorEnabled = true;
}

void loop() {
  hallSensor.processButtons();
  button.processButtons();
  limits.processButtons();

  switch (currentState) {
    case CALIBRATING:
      handleCalibration();
      break;
    case NORMAL:
      handleNormalOperation();
      break;
  }
}

void handleCalibration() {
  if (hallSensor.pressed(0)) {
    if (triggerCount == 0) {
      firstTriggerStep = stepper.readSteps();
      triggerCount++;
      Serial.println("First trigger detected");
    } else if (triggerCount == 1) {
      long secondTriggerStep = stepper.readSteps();
      stepsPerRevolution = secondTriggerStep - firstTriggerStep;
      stepper.setZero(0, stepsPerRevolution);
      stepper.stop();
      currentState = NORMAL;
      motorEnabled = false;
      stepper.detach();
      Serial.print("Calibration complete. Steps per revolution: ");
      Serial.println(stepsPerRevolution);
    }
  }
}

void handleNormalOperation() {
  // Auto-shutdown
  if (motorEnabled && millis() - lastMoveTime > 60000) {
    stepper.detach();
    motorEnabled = false;
    Serial.println("Motor disabled due to inactivity");
  }

  // Read potentiometer
  int potValue = analogRead(potPin);
  int speed = 0;
  
  if (potValue < (512 - deadZone)) {
    speed = map(potValue, 0, 512 - deadZone, -maxRPM * 10, 0);
  } else if (potValue > (512 + deadZone)) {
    speed = map(potValue, 512 + deadZone, 1023, 0, maxRPM * 10);
  }

  if (speed != 0 && !motorEnabled) {
    stepper.attach(stepPin, dirPin);
    stepper.attachEnable(enablePin, 100, LOW);
    motorEnabled = true;
    lastMoveTime = millis();
  }

  if (motorEnabled) {
    stepper.setSpeed(speed);
    lastMoveTime = millis();
  }

  // 180-degree button
  if (button.pressed(0)) {
    long currentPosition = stepper.readSteps();
    long targetPosition = currentPosition + (stepsPerRevolution / 2);
    stepper.moveTo(targetPosition);
    lastMoveTime = millis();
    Serial.println("Moving to 180-degree position");
  }

  // Limit switches
  for (int i = 0; i < 6; i++) {
    if (limits.pressed(i)) {
      stepper.stop();
      Serial.print("Limit switch ");
      Serial.print(i);
      Serial.println(" triggered");
      break;
    }
  }

  // Homing
  if (hallSensor.pressed(0)) {
    stepper.setZero();
    Serial.println("Homing position set");
  }
}
14

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