int timer = 1000;
int pinCounter = 0;
int state;

#define DEBUG 0    // SET TO 0 OUT TO REMOVE TRACES

#if DEBUG
#define D_SerialBegin(...) Serial.begin(__VA_ARGS__);
#define D_print(...)    Serial.print(__VA_ARGS__)
#define D_write(...)    Serial.write(__VA_ARGS__)
#define D_println(...)  Serial.println(__VA_ARGS__)
#else
#define D_SerialBegin(...)
#define D_print(...)
#define D_write(...)
#define D_println(...)
#endif

void setup() {
  // put your setup code here, to run once:

for (int thisPin = 2; thisPin < 7; thisPin++) {
  pinMode(thisPin, OUTPUT); 
  }
D_SerialBegin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:

  for (int counter = 0; counter <32; counter ++) {
D_print("counter = ");
D_println(counter);
    for (int pinCounter = 2; pinCounter < 7; pinCounter++) {
      int bitValue = round(pow(2,(pinCounter - 1)) * 10) / 10.0;
      int modCheckValue = round((pow(2,(pinCounter - 2)) - 1) * 10) / 10.0;
D_print("bitValue = ");
D_println(bitValue);
D_print("modCheckValue = ");
D_println(modCheckValue);      
      int counterBitValue = counter % bitValue;
D_print("counterBitValue = ");
D_println(counterBitValue);
      if (counterBitValue > modCheckValue) {
        state = 1;
      } else {
        state = 0;
      }
D_print("pinCounter = ");
D_print(pinCounter);
D_print(", state = ");
D_println(state);
      digitalWrite(pinCounter,state);
    }
    delay(timer);
  }  
}