bool btn_b = 0;
bool btn_v = 0;
bool btn_r = 0;
void setup() {
  // put your setup code here, to run once:
  pinMode(13, OUTPUT);
  pinMode(5, INPUT);
  pinMode(12, OUTPUT);
  pinMode(4, INPUT);
  pinMode(11, OUTPUT);
  pinMode(6, INPUT);
  Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  Serial.println(digitalRead(5));
  Serial.println(btn_b);
  Serial.println(digitalRead(4));
  Serial.println(btn_v);
  Serial.println(digitalRead(6));
  Serial.println(btn_r);

  if(digitalRead(5)==1 && btn_b ==0){
    Serial.println("on");
    digitalWrite(13, HIGH);
    btn_b=1;
    delay(1000);
  }
  
  if(digitalRead(5)==1 && btn_b ==1){
    Serial.println("off");
    digitalWrite(13, LOW);
    btn_b=0;
    delay(1000);
  }
  Serial.println("---");

  if(digitalRead(4)==1 && btn_v ==0){
    Serial.println("on");
    digitalWrite(12, HIGH);
    btn_v=1;
    delay(1000);
  }
  
  if(digitalRead(4)==1 && btn_v ==1){
    Serial.println("off");
    digitalWrite(12, LOW);
    btn_v=0;
    delay(1000);
  }
  Serial.println("---");

  if(digitalRead(6)==1 && btn_r ==0){
    Serial.println("on");
    digitalWrite(11, HIGH);
    btn_r=1;
    delay(1000);
  }
  
  if(digitalRead(6)==1 && btn_r ==1){
    Serial.println("off");
    digitalWrite(11, LOW);
    btn_r=0;
    delay(1000);
  }
  Serial.println("---");
}