/*
  Blink
  Turns on an LED on for one second, then off for one second, repeatedly.
 
  This example code is in the public domain.
 */
int ld1 = 77;
int ld2 = 76;
int ld3 = 75;
int ld4 = 74;
int ld5 = 73;
int ld6 = 72;
int ld7 = 71;
int ld8 = 70;
void setup() {                
  // initialize the digital pin as an output.
  // Pin PIN_LED1 has an LED connected on most Arduino and compatible boards:
  pinMode(PIN_LED1, OUTPUT);     
  pinMode(ld1, OUTPUT);     
  pinMode(ld2, OUTPUT);     
  pinMode(ld3, OUTPUT);     
  pinMode(ld4, OUTPUT);     
  pinMode(ld5, OUTPUT);     
  pinMode(ld6, OUTPUT);     
  pinMode(ld7, OUTPUT);     
  pinMode(ld8, OUTPUT);     
}

void loop() {
  digitalWrite(PIN_LED1, HIGH);   // set the LED on

  digitalWrite(ld1, LOW);    // set the LED off
  digitalWrite(ld3, LOW);    // set the LED off
  digitalWrite(ld5, LOW);    // set the LED off
  digitalWrite(ld7, LOW);    // set the LED off

  digitalWrite(ld2, HIGH);   // set the LED on
  digitalWrite(ld4, HIGH);   // set the LED on
  digitalWrite(ld6, HIGH);   // set the LED on
  digitalWrite(ld8, HIGH);   // set the LED on

  delay(1000);              // wait for a second

  digitalWrite(PIN_LED1, LOW);    // set the LED off

  digitalWrite(ld1, HIGH);   // set the LED on
  digitalWrite(ld3, HIGH);   // set the LED on
  digitalWrite(ld5, HIGH);   // set the LED on
  digitalWrite(ld7, HIGH);   // set the LED on

  digitalWrite(ld2, LOW);    // set the LED off
  digitalWrite(ld4, LOW);    // set the LED off
  digitalWrite(ld6, LOW);    // set the LED off
  digitalWrite(ld8, LOW);    // set the LED off

  delay(1000);              // wait for a second
}