Erro ao compilar

olá sou novato no arduino e gostaria que voçês me podessem compilar este programa de modo que ele funcione.

FMKR28MHI3TXWXF.zip (671 Bytes)

Se e pequeno podes fazer copy/paste... se nao couber dentro dos 9000 caracteres de limite, se calhar e melhor dizeres exactamente o que pretendes.

Falta as definições das constantes referentes aos pinos:

const int buttonPin2 = 6;
const int buttonPin3 = 7;
const int buttonPin4 = 8;

const int led = 13;

O programa completo ficaria assim:

// this constant won't change:
const int  buttonPin = 5; // the pin that the pushbutton is attached to

const int buttonPin2 = 6;
const int buttonPin3 = 7;
const int buttonPin4 = 8;

const int led = 13;

// Variables will change:
int buttonState = 0;         // current state of the button
int lastButtonState = 0;     // previous state of the button

void setup() {
  // initialize the button pin as a input:
  pinMode(buttonPin, INPUT);
  // initialize serial communication:
  Serial.begin(9600);
}

void loop() {
  // read the pushbutton input pin:
  buttonState = digitalRead(buttonPin);
  // compare the buttonState to its previous state
  if (buttonState != lastButtonState) {
    if (buttonState == HIGH) {
      // if the current state is HIGH then the button
      // wend from off to on:    
      Serial.println("Headlights");
      delay (1000);
    } 
  }

  buttonState = digitalRead(buttonPin2);

  if (buttonState != lastButtonState) {
    // if the state has changed, increment the counter
    if (buttonState == HIGH) {
      // if the current state is HIGH then the button
      // wend from off to on:    
      Serial.println("Windshield Wipers");
      delay (1000);
    } 
  }

  buttonState = digitalRead(buttonPin3);

  if (buttonState != lastButtonState) {
    // if the state has changed, increment the counter
    if (buttonState == HIGH) {
      // if the current state is HIGH then the button
      // wend from off to on:    
      Serial.println("Pit Speed Limiter");
      delay (1000);
    } 
  }

  buttonState = digitalRead(buttonPin4);

  if (buttonState != lastButtonState) {
    // if the state has changed, increment the counter
    if (buttonState == HIGH) {
      // if the current state is HIGH then the button
      // wend from off to on:    
      Serial.println("Start Engine");
      digitalWrite(led, HIGH);
      //delay (10);
      digitalWrite(led, LOW);
    }

  }
  // save the current state as the last state, 
  //for next time through the loop
  lastButtonState = buttonState;
}