const byte buton = 2;
void setup() {
Serial.begin(9600);
pinMode(buton, INPUT_PULLUP);
}
void loop() {
boolean butonDurum = digitalRead(buton);
if(butonDurum==0){
  Serial.println("BUTON BASILDI");
}else{
  Serial.println("BUTON BASILI DEGIL");
}


}