#include "ArduinoTrace.h"

byte count;

const byte led0=2;
const byte led1=4;
const byte led2=6;
const byte led3=8;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);

  pinMode(led0, OUTPUT);
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  
}

void loop() {
  // put your main code here, to run repeatedly:
  displayCount();
  decCount();
  delay(1000);
}



void displayCount()
{
  digitalWrite(led0,bitRead(count,0));
  digitalWrite(led1,bitRead(count,1));
  digitalWrite(led2,bitRead(count,2));
  digitalWrite(led3,bitRead(count,3));
  DUMP(count);
}



void incCount()
{
  if(count<15)
  {
    count++;
  }
  else
  {
    count=0;
  }
}

void decCount()
{

  if (count > 0)
  {

    count--;

  }
  else
  {

    count = 15;

  }

}