const int btn1 = 10;
const int btn2 = 9;
const int btn3 = 8;

const int ledR = 13;
const int ledG = 12;
const int ledB = 11;

int btnState1 = LOW;
int btnState2 = LOW;
int btnState3 = LOW;

void setup() {
  // put your setup code here, to run once:
  pinMode(btn1, INPUT_PULLUP);
  pinMode(btn2, INPUT_PULLUP);
  pinMode(btn3, INPUT_PULLUP);

  pinMode(ledR, OUTPUT);
  pinMode(ledG, OUTPUT);
  pinMode(ledB, OUTPUT);

  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  btnState1 = !digitalRead(btn1);
  btnState2 = !digitalRead(btn2);
  btnState3 = !digitalRead(btn3);

  if(btnState1 == HIGH){
    digitalWrite(ledR, HIGH);
    digitalWrite(ledG, LOW);
    digitalWrite(ledB, LOW);
  }
  else if(btnState2 == HIGH){
    digitalWrite(ledR, LOW);
    digitalWrite(ledG, HIGH);
    digitalWrite(ledB, LOW);
  }
  else if(btnState3 == HIGH){
    digitalWrite(ledR, LOW);
    digitalWrite(ledG, LOW);
    digitalWrite(ledB, HIGH);
  }else{
    digitalWrite(ledR, LOW);
    digitalWrite(ledG, LOW);
    digitalWrite(ledB, LOW);
  }

  // Serial.println(btnState1);


}