/*
Stlačením tlačidla, zapneme diódu

!HIGH = LOW

!premenna = obratena hodnota

*/
int btn = 6;
int btn2 = 2;
int led = 5;
bool btnState = LOW;
bool btnState2 = LOW;

int floatingPinBtn = 8;

void setup() {
  // put your setup code here, to run once:
  pinMode(btn, INPUT_PULLUP);
  pinMode(13, OUTPUT);
  pinMode(led, OUTPUT);
  pinMode(btn2, INPUT);

  pinMode(floatingPinBtn, INPUT);

  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:

  btnState = !digitalRead(btn);
  if(btnState == HIGH){
    digitalWrite(13, HIGH);
  }else{
    digitalWrite(13, LOW);
  }

  btnState2 = digitalRead(btn2);
  if(btnState2 == HIGH){
    digitalWrite(led, HIGH);
  }else{
    digitalWrite(led, LOW);
  }

  
  Serial.println(digitalRead(floatingPinBtn));
  
}