Binary Counting LEDs

binarycount.ino

int analogInput = 0;
int rate = 0;
int val = 0;
int count = 0;
 
void setup()
{
  pinMode(analogInput, INPUT);
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  Serial.begin(300);
}
 
void loop()
{
  count++;
  count = count % 256;
  digitalWrite(2, count%2==1?HIGH:LOW);
  digitalWrite(3, count/2%2==1?HIGH:LOW);
  digitalWrite(4, count/4%2==1?HIGH:LOW);
  digitalWrite(5, count/8%2==1?HIGH:LOW);
  digitalWrite(6, count/16%2==1?HIGH:LOW);
  digitalWrite(7, count/32%2==1?HIGH:LOW);
  digitalWrite(8, count/64%2==1?HIGH:LOW);
  digitalWrite(9, count/128%2==1?HIGH:LOW);
  val = analogRead(analogInput);
  Serial.println(val);
  delay(val);
}