#include <LiquidCrystal_I2C.h>

#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4
#define ENCODER_CLKM 12
#define ENCODER_DTM  11
#define ENCODER_CLKU 15
#define ENCODER_DTU  16
#define ENCODER_SWU  A3

LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);
int z = 0;
int y = 0;
int h = 0;
int p =0;
int q =0;
int potL = A2;
int L=0;
int lastClkM = HIGH;
int lastClkU = HIGH;
int laststart = HIGH;

const int pin13 = 13 ;



void setup() {
  Serial.begin(9600);

  // Init
  lcd.init();
  lcd.backlight();

  // Print something
  lcd.setCursor(3, 0);
  lcd.print("Auto-Pull");
  lcd.setCursor(0, 1);
  lcd.print("Stops at L + 7inxx");


pinMode(pin13, OUTPUT);
pinMode(potL, INPUT);
pinMode(ENCODER_SWU, INPUT);

}


void loop() {
  

// UI encoder

  int newClkU = digitalRead(ENCODER_CLKU);
  if (newClkU != lastClkU) {
    // There was a change on the CLK pin
    lastClkU = newClkU;
    int dtValueU = digitalRead(ENCODER_DTU);
    if (newClkU == LOW && dtValueU == HIGH) { q= q+1;
        lcd.setCursor(0, 0);
        lcd.print("Length in Feet  ");
        lcd.setCursor(0, 1);
       lcd.print("                ");
       lcd.setCursor(0, 1);
       lcd.print(q);
    }
    if (newClkU == LOW && dtValueU == LOW) { q = q-1;
        lcd.setCursor(0, 0);
        lcd.print("Length in Feet  ");
        lcd.setCursor(0, 1);
        lcd.print("                ");
        lcd.setCursor(0, 1);
        lcd.print(q);
    }
  }
  
  

// motor encoder
  
  int newClkM = digitalRead(ENCODER_CLKM);
  if (newClkM != lastClkM) {
    // There was a change on the CLK pin
    lastClkM = newClkM;
    int dtValueM = digitalRead(ENCODER_DTM);
    if (newClkM == LOW && dtValueM == HIGH) { p= p+1;
      Serial.println(p);
    }
    if (newClkM == LOW && dtValueM == LOW) { p = p-1;
      Serial.println(p);
    }
  }
  if(h==1){ digitalWrite(pin13,HIGH);
  if(p == q+7){h=0;digitalWrite(pin13,LOW);p=0;}
  }
// motor(led)

//switch trigger
int start = digitalRead(ENCODER_SWU);
if (start != laststart){ laststart = start;
if (laststart == HIGH){h = 1;}}

}