#include <Keypad.h>
// #include <Stepper.h>

const uint8_t ROWS = 4;
const uint8_t COLS = 4;
const int stepPin = 12; 
const int dirPin = 11; 
const int red = 13;
const int yellow = 10;
const int green = 2;
int all_steps = 0;

// Stepper stepper = Stepper(1, stepPin, dirPin);
// step(100);

char keys[ROWS][COLS] = {
  { '1', '2', '3', 'A' },
  { '4', '5', '6', 'B' },
  { '7', '8', '9', 'C' },
  { '*', '0', '#', 'D' }
};

uint8_t colPins[COLS] = { 5, 4, 3 }; // Pins connected to C1, C2, C3, C4
uint8_t rowPins[ROWS] = { 9, 8, 7, 6 }; // Pins connected to R1, R2, R3, R4

Keypad keypad = Keypad(makeKeymap(keys), rowPins, colPins, ROWS, COLS);

void setup(){
  Serial.begin(9600);
  pinMode(stepPin,OUTPUT); 
  pinMode(dirPin,OUTPUT);
  pinMode(red, OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(green, OUTPUT);
  digitalWrite(red, LOW);
  digitalWrite(yellow, LOW);
  digitalWrite(green, LOW);
}
String steps = "";
void loop(){
  char key = keypad.getKey();
  if (key != NO_KEY && key != '#') {
    Serial.print(key);
    steps= steps + key;
  } else if (key != NO_KEY && key == '#'){

    int stepsVal = steps.toInt();
    all_steps += stepsVal;
    Serial.println();
    Serial.print("Steps: ");
    Serial.println(all_steps);
    if (all_steps > 1000) {
      digitalWrite(red, HIGH);
      digitalWrite(yellow, LOW);
      digitalWrite(green, LOW);
    }
    if (all_steps > 2000) {
      digitalWrite(yellow, HIGH);
      digitalWrite(red, LOW);
      digitalWrite(green, LOW);
    }
    if (all_steps > 3000) {
      digitalWrite(green, HIGH);
      digitalWrite(red, LOW);
      digitalWrite(yellow, LOW);
    }

    if (stepsVal == 0) {
      stepsVal = 180;
    }
    for(int x = 0; x < stepsVal; x++) {
      digitalWrite(stepPin,HIGH); 
      delayMicroseconds(100000); 
      digitalWrite(stepPin,LOW); 
      delayMicroseconds(100000); 
    }
    steps = "";
  }
}
  /*digitalWrite(dirPin,HIGH); // Enables the motor to move in a particular direction
  // Makes 200 pulses for making one full cycle rotation
  for(int x = 0; x < 200; x++) {
    digitalWrite(stepPin,HIGH); 
    delayMicroseconds(500); 
    digitalWrite(stepPin,LOW); 
    delayMicroseconds(500); 
  }
  delay(1000); // One second delay
  
  digitalWrite(dirPin,LOW); //Changes the rotations direction
  // Makes 400 pulses for making two full cycle rotation
  for(int x = 0; x < 400; x++) {
    digitalWrite(stepPin,HIGH);
    delayMicroseconds(500);
    digitalWrite(stepPin,LOW);
    delayMicroseconds(500);
  }
  delay(1000);*/