// This Code is Designned by Prince Kushwaha

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

// Initialize the LCD with the I2C address of 0x27 and 16x2 dimensions
LiquidCrystal_I2C lcd(0x27, 16, 2);

int analogPin = 0;
int raw = 0;
int Vin = 5;
float Vout = 0;
float R1 = 1000;
float R2 = 0;
float buffer = 0;

void setup() {
  // Initialize the LCD
  lcd.init();
  lcd.backlight();
  Serial.begin(9600);
}

void loop() {
  raw = analogRead(analogPin);
  if (raw) {
    buffer = raw * Vin;
    Vout = (buffer) / 1024.0;
    buffer = (Vin / Vout) - 1;
    R2 = R1 * buffer;
    Serial.print("Vout: ");
    Serial.println(Vout);
    Serial.print("R2: ");
    Serial.println(R2);
    // Print the Vout and R2 values on the LCD
    lcd.setCursor(0, 0);
    lcd.print("Vout: ");
    lcd.print(Vout, 2);  // Print Vout with 2 decimal places

    lcd.setCursor(0, 1);
    lcd.print("R2: ");
    lcd.print(R2, 2);  // Print R2 with 2 decimal places
    lcd.print(" ohms");
    
    delay(1000);
    lcd.clear();
  }
}