#include <LiquidCrystal_I2C.h>
#include <Wire.h>

// Cam Project - Jetha Ke Jabaaz
#define I2C_ADDR    0x27
#define LCD_COLUMNS 20
#define LCD_LINES   4
const int stepPin = 3;
const int dirPin  = 4;
int numSteps = 200 ;//200 for full step res
int timeDelay = 10;//time detween steps control of speed of motor
int direction=1;
#define speed A0 
const int dir_bt=7;
const int  start_bt= 8;
const int unit1=9;
const int unit10=10;
const int unit100=11;
const int universal=12;
int unit1_val=0;
int unit10_val=0;
int unit100_val=0;
int universal_val=0; 
int flag=0;
int dir_ch=0;
float time_min;
float rpm;
int sum=0;
LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLUMNS, LCD_LINES);
void setup() {
  // put your setup code here, to run once:
  lcd.init();
  lcd.backlight();
  lcd.clear();
  lcd.setCursor(1,0);
  lcd.print("Jetha Ke Jabaaz");
  pinMode(stepPin, OUTPUT);
  pinMode(dirPin, OUTPUT);
  Serial.begin(115200);
  pinMode(unit1, INPUT);
  pinMode(unit10, INPUT);
  pinMode(unit100, INPUT);
  pinMode(universal, INPUT);
  pinMode(dir_bt, INPUT);
  pinMode(start_bt, INPUT);
}
void Print_dir(int direction, int dir_ch){
  lcd.setCursor(1,0);
    if(dir_ch!=direction){
      lcd.clear();
      if(direction == HIGH){
        lcd.print("Direction: CW");

      }
      else{
        lcd.print("Direction: ACW");
      }
    }
}
void loop() {
  // if(digitalRead(universal)==HIGH){
  //   universal_val+=1;
  //   universal_val%=10;
  // }
  // if(digitalRead(unit1)==HIGH){
  //   unit1_val+=1;
  //   unit1_val%=10;
  // }
  // if(digitalRead(unit10)==HIGH){
  //   unit10_val+=1;
  //   unit10_val%=10;
  // }
  // if(digitalRead(unit100)==HIGH){
  //   unit100_val+=1;
  //   unit100_val%=10;
  // }
  // sum=unit100_val*100+unit10_val*10+unit1_val;
  // Serial.print(" SUM ");
  // Serial.print(sum);
  // Serial.println();
  int start_bt_val=digitalRead(start_bt);
  direction=digitalRead(dir_bt);
  if(start_bt_val==HIGH){
    if(flag==0){
      lcd.clear();
    }
    Print_dir(direction, dir_ch);
    dir_ch=direction;
    
    int read = analogRead(speed);
    timeDelay = map(read,0,1023,1,3000);
    // Serial.print(" Potentiometer ");
    // Serial.print(read);
    // Serial.println();
    // Serial.print(" Time Delay ");
    // Serial.print(timeDelay);
    time_min= (float)200*timeDelay/(1000000);
    rpm = (float)1/time_min;
    // Serial.print(" Time min ");
    // Serial.print(time_min);
    // Serial.println(rpm);
    // lcd.setCursor(1,1);
    // lcd.print("     ");
    // lcd.setCursor(1,1);
    // lcd.print(rpm);
    
    // Serial.println(digitalRead(dir_bt));
    

    digitalWrite(dirPin,direction);//high for cw rotation
    digitalWrite(stepPin,HIGH);
    delayMicroseconds(timeDelay);
    digitalWrite(stepPin,LOW);
    // delayMicroseconds(timeDelay);
  }
  else{
    if(flag){
    lcd.clear();
    lcd.setCursor(1,0);
    lcd.print("Jetha Ke Jabaaz");
    lcd.setCursor(1,1);
    lcd.print("Press Start Button to start");
    }
  }
  flag=start_bt_val;
  // delay(500);
}