#define BIT_0 2
#define BIT_1 3
#define BIT_2 4
#define BIT_3 5

/////////////Don't build the circuit without resitors guys/////////////

void binSwitch() {

  for (uint8_t Byte = 0; Byte < 16; ++Byte) {
    digitalWrite(BIT_0, bitRead(Byte, 0));
    digitalWrite(BIT_1, bitRead(Byte, 1));
    digitalWrite(BIT_2, bitRead(Byte, 2));
    digitalWrite(BIT_3, bitRead(Byte, 3));
    Serial.print("Byte = ");
    Serial.print(Byte);
    Serial.print(" = 0b");
    for (int8_t bit = 3; bit > -1; bit--) {
      Serial.print(bitRead(Byte, bit));
    }
    Serial.println();
    delay(500);
  }
}


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println();
  pinMode(BIT_0, OUTPUT);
  pinMode(BIT_1, OUTPUT);
  pinMode(BIT_2, OUTPUT);
  pinMode(BIT_3, OUTPUT);

}



void loop() {

  binSwitch();
  delay(2000);

}