//const int buttonPin = 4;  // the number of the pushbutton pin
const int ledPin = 25;    // the number of the LED pin

// variable for storing the pushbutton status 
//int buttonState = 0;

void setup() {
  Serial.begin(115200);  
  // initialize the pushbutton pin as an input
 // pinMode(buttonPin, INPUT);
  // initialize the LED pin as an output
  pinMode(ledPin, OUTPUT);
}

void loop() {
  // read the state of the pushbutton value
  //buttonState = digitalRead(buttonPin);
 // Serial.println(buttonState);
  // check if the pushbutton is pressed.
  // if it is, the buttonState is HIGH
 // if (buttonState == HIGH) {
    // turn LED on
    digitalWrite(ledPin, HIGH);
    Serial.println("led on");
    delay(1000);
 // } else {
    // turn LED off
    digitalWrite(ledPin, LOW);
    Serial.println("led off");
    delay(1000);
  }