// create Test Scenario Usage  Anode and Cathode. Common Pin x2 in 1 phase

int R = 2;
int Y = 3;
int G = 4;
int reset = 0;

const int phase[4] ={reset , G , Y , R };

const int pinLed[4] ={
  0b0000, //0
  0b0100, //G
  0b0010,
  0b0001,
};

void setup() {
  Serial.begin(9600);
  pinMode(R, OUTPUT);
  pinMode(Y, OUTPUT);
  pinMode(G, OUTPUT);
}

void loop() {
  //Serial.println();

  for (int 0 ; i<4; i++) {
  showLed(1,0,0);
  }
  delay(100);

}

void showLed(R , Y , G) {
  
  int pin[4] {0b0000,  0b0001,  0b0010, 0b0100,};
}