int r = 2;
int g = 3;
int y = 4;

int Gbtn = 5;
int Ybtn = 6;
int Rbtn = 7;

void setup() {
  // put your setup code here, to run once:
  // กำหนดรูปแบบขา
  pinMode(r, OUTPUT);
  pinMode(g, OUTPUT);
  pinMode(y, OUTPUT);
  Serial.begin(115200);
  pinMode(Gbtn, INPUT);
  pinMode(Ybtn, INPUT);
  pinMode(Rbtn, INPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  bool GbtnV = digitalRead(Gbtn);
  bool YbtnV = digitalRead(Ybtn);
  bool RbtnV = digitalRead(Rbtn);
  
  Serial.print(GbtnV);
  Serial.print("\t");
  Serial.print(YbtnV);
  Serial.print("\t");
  Serial.println(RbtnV);

  digitalWrite(g, GbtnV);
  digitalWrite(y, YbtnV);
  digitalWrite(r, RbtnV);
  delay(100);
}