int led1= 12;
int led2= 14;
int led3= 16;
int poten= 13;
int valor;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(poten, INPUT);
}

void loop() {

Serial.println(valor);
valor=analogRead(poten);
 if(valor<500){
digitalWrite(led1, HIGH);
delay(100);
digitalWrite(led1, LOW);
delay(100);
 }
 Serial.println(valor);
valor=analogRead(poten);
 if(valor>2500){
digitalWrite(led2, HIGH);
delay(100);
digitalWrite(led2, LOW);
delay(100);
 }
 Serial.println(valor);
valor=analogRead(poten);
 if(valor>4000){
digitalWrite(led3, HIGH);
delay(100);
digitalWrite(led3, LOW);
delay(100);
 }
}