#include <LiquidCrystal_I2C.h>

float pot = 0;  
LiquidCrystal_I2C lcd(0x27, 16, 2);  

const int sliderPin = A1;  
const int potPin = A0;     

String nome = "Joao";
String curso = "Dev";

void setup() {
  pinMode(2, INPUT);  
  pinMode(3, INPUT);  
  pinMode(3, OUTPUT); 
  
  lcd.init();       
  lcd.backlight();  
  lcd.setCursor(1, 0); 
  lcd.print("Boa Noite");  
  Serial.begin(115200);    
  delay(5000);             
  lcd.clear();             
}

void loop() {
  pot = analogRead(potPin);
  float volts = pot * 0.0048875;  
  Serial.println(volts);          

  lcd.setCursor(2, 0);  
  lcd.print(volts);     

  int sliderValue = analogRead(sliderPin);  
  int potValue = analogRead(potPin);        
  int delayTime = map(potValue, 0, 1023, 100, 1000); 

  if (sliderValue < 512) {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(nome);
    for (int position = 0; position <= 16 - nome.length(); position++) {
      lcd.clear();
      lcd.setCursor(position, 0);
      lcd.print(nome);
      delay(delayTime);  
    }
  } else {
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(curso);
    for (int position = 0; position <= 16 - curso.length(); position++) {
      lcd.clear();
      lcd.setCursor(position, 0);
      lcd.print(curso);
      delay(delayTime);  
    }
  }
}