// Coil Winder Sketch 39 AWG, 150 winds per layer. 1:10 ratio, 1:1:10 ratio.

//Define pin connections & motor's steps per revolution
const int stepPinX = 2; // motor X step pin
const int dirPinX = 3; // motor X direction pin
const int enableX = 4; // motor X enable pin

const int stepPinY = 5; // motor Y step pin
const int dirPinY = 6; // motor Y direction pin
const int enableY = 7; // motor Y enable pin

const int buttonPin1 = 8; // pin connected to the buttonPin1 switch
const int homeSwitch = 9; // Pin connected to Home Switch to ground
const int buttonPin2 = 10; // pin connected to the buttonPin2 switch
const int stepsPerRevolution = 200; //number of steps per revolution in motorloop

int Layers; // a layer should be a change of direction

void setup() {
  Serial.begin(115200);
  pinMode(stepPinX, OUTPUT);
  pinMode(dirPinX, OUTPUT);
  pinMode(stepPinY, OUTPUT);
  pinMode(dirPinY, OUTPUT);
  pinMode(enableX, OUTPUT);
  pinMode(enableY, OUTPUT);
  pinMode(buttonPin1, INPUT_PULLUP);
  pinMode(homeSwitch, INPUT_PULLUP);
  pinMode(buttonPin2, INPUT_PULLUP);

  Serial.println("Homing (press HOME limit button)");
  home(); // move X toward home switch
}

void loop() {
  if (!digitalRead(buttonPin1) || !digitalRead(buttonPin2)) {
    delay(200); // debounce the limit switches
    digitalWrite(dirPinX, !digitalRead(dirPinX)); // make direction opposite of previous direction
    Serial.print("DIR:");
    Serial.print(digitalRead(dirPinX));
    Serial.print(" LAYER: ");
    Serial.println(++Layers);
  }
  for (int i = 0; i < 3; i++) // counting...
    StepMotorY(); // three Y steps
  StepMotorX(); // one X xtep
}

void StepMotorX() {
  digitalWrite(stepPinX, HIGH);  //One step X motor
  delay(2);
  digitalWrite(stepPinX, LOW);
  delay(2);
}

void StepMotorY() {
  digitalWrite(stepPinY, HIGH);  //One step Y motor
  delay(2);
  digitalWrite(stepPinY, LOW);
  delay(2);
}

void home() {
  // Start Homing procedure of X axis Stepper Motor at startup
  digitalWrite(dirPinX, LOW);      // (HIGH = anti-clockwise / LOW = clockwise) WHICH IS LEFT/RIGHT?
  while (digitalRead(homeSwitch) == HIGH) // Do this until the switch is not activated
  {
    digitalWrite(stepPinX, HIGH);
    delay(2);                       // Delay to slow down speed of Stepper
    digitalWrite(stepPinX, LOW);
    delay(2);
  }
  digitalWrite(dirPinX, HIGH);
  Serial.println("press appropriate limit switch - B1 or B2");
}