ejemplo.ino

const int ledPin = 13;
const int botonPin = 7;
const int boton2Pin = 8;
int milisegundos = 500;
int val = 0;
long randNumber;
long randNumber2;

void setup() {
  Serial.begin(9600);
  randomSeed(analogRead(0));
  // put your setup code here, to run once:
  pinMode(ledPin, OUTPUT);
  pinMode(botonPin, INPUT);
  pinMode(boton2Pin, INPUT);
   
  randNumber = random(0, 11); // 0 a 10
  Serial.println("Tesoro:");
  Serial.println(randNumber);
  randNumber2 = random(0, 11); // 0 a 10
  Serial.println("YO");
  Serial.println(randNumber2);
}

void loop() {
  // put your main code here, to run repeatedly:
  leerBoton();
  calcularTiempo();
  prenderApagar();
}

void prenderApagar() {
  digitalWrite(ledPin, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(milisegundos);                       // wait for a second
  digitalWrite(ledPin, LOW);    // turn the LED off by making the voltage LOW
  delay(milisegundos);                       // wait for a second
}

void leerBoton() {
  val = digitalRead(botonPin);   // read the input pin
  if (val == HIGH){
    randNumber2 = randNumber2 + 1;
  }
  val = digitalRead(boton2Pin);   // read the input pin
  if (val == HIGH){
    randNumber2 = randNumber2 - 1;
  }
  Serial.print("Cambie a:");
  Serial.println(randNumber2);
}

void calcularTiempo(){
  long dif = abs(randNumber - randNumber2);
  if (dif > 7){
    milisegundos = 2000;
  } else if (dif > 5){
    milisegundos = 1500;
  } else if (dif > 3){
    milisegundos = 1000;
  } else if (dif > 2){
    milisegundos = 500;
  } else if (dif > 0){
    milisegundos = 200;
  } else if (dif == 0){
    milisegundos = 50;
    Serial.println("Encontre el tesoro.");
  }
}