#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);

  float BV, NC, LV, nL, LAmp, hr, S1, S, Bt, p, cost;
  float n_r, f_r;
void setup() {
  Serial.begin(9600);
   lcd.init();
  lcd.backlight();
}

void loop() {

  while(1) {
    lcd.setCursor(0,0);
    lcd.print("Input:");
    Serial.println("[BV NC LV nL LAmp Hr] = ");
    while (Serial.available() == 0) {} 
    BV = Serial.parseFloat();
    NC = Serial.parseFloat();
    LV = Serial.parseFloat();
    nL = Serial.parseFloat();
    LAmp = Serial.parseFloat();
    hr = Serial.parseFloat();
    
    S1 = LV / BV;
    S = ceil(S1);
    f_r = (NC / (nL * LAmp * 1000));
    n_r = hr / f_r;

    lcd.setCursor(0,1);
    lcd.print("BV: ");
    lcd.print(BV);
    delay(2000);
    lcd.print(" NC:");
    lcd.print(NC);
    delay(2000);
    lcd.clear();
     lcd.setCursor(0,0);
    lcd.print("LV:");
    lcd.print(LV);
    delay(2000);
    lcd.print(" nL: ");
    lcd.print(ceil(nL));
    delay(2000);
    lcd.clear();
     lcd.setCursor(0,1);
    lcd.print("LA:");
    lcd.print(ceil(LAmp));
    delay(2000);
    lcd.print("Hr:");
    lcd.print(ceil(hr));
    delay(2000);
    
    Serial.print("No of series connected battery = ");
    Serial.println(S);

    Serial.print(ceil(n_r));
    Serial.println(" parallel connected");

    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Series Battery:");
    lcd.setCursor(0,1);
    lcd.print(S);
    delay(2000);

    lcd.clear();
    lcd.setCursor(0,0);
    lcd.print("Parallel Bt:   ");
    lcd.setCursor(0,1);
    lcd.print(ceil(n_r));

    delay(2000);

    lcd.clear();

    if (n_r < 1) {
      Bt = S;
    } else {
      Bt = S * n_r;
    }
    Serial.print(ceil(Bt));
    Serial.println(" batteries");


    lcd.setCursor(0,0);
    lcd.print("Total Battery:");
    lcd.setCursor(0,1);
    lcd.print(ceil(Bt));

    delay(2000);

    lcd.clear();
    

    if (NC == 2000) {
      p = 67;
    } else if (NC == 3000) {
      p = 198;
    } else if (NC == 4000) {
      p = 400;
    } else if (NC == 5000) {
      p = 1000;
    }
    Serial.print("Single Bt = ₹");
    Serial.println(p);


    lcd.setCursor(0,0);
    lcd.print("Single Bt cost:");
    lcd.setCursor(0,1);
    lcd.print(p);

    delay(2000);

    lcd.clear();
    
    cost = Bt * p;
    Serial.print("Total cost= ₹");
    Serial.println(cost);
    
    lcd.setCursor(0,0);
    lcd.print("Total cost:");
    lcd.setCursor(0,1);
    lcd.print(cost);

    delay(10000);
    lcd.clear();
  }
  delay(100);
}