led_bin

#include <wiringPi.h>
#include <stdio.h>
#include <math.h>

#define TE     0
#define LED1   1
#define LED2   2
#define LED3   3
#define LED4   4

int main (void) {

  wiringPiSetup ();
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  pinMode(LED3, OUTPUT);
  pinMode(LED4, OUTPUT);
  pinMode(TE, OUTPUT);

  for(;;) {
    digitalWrite(TE, LOW);

    delay(1000);            // 0

    digitalWrite(LED1, LOW);        // 1
    delay(1000);
    digitalWrite(LED1, HIGH);

    digitalWrite(LED2, LOW);        // 2
    delay(1000);

    digitalWrite(LED1, LOW);        // 3
    delay(1000);
    digitalWrite(LED1, HIGH);
    digitalWrite(LED2, HIGH);

    digitalWrite(LED3, LOW);        // 4
    delay(1000);

    digitalWrite(LED1, LOW);        // 5
    delay(1000);
    digitalWrite(LED1, HIGH);

    digitalWrite(LED2, LOW);        // 6
    delay(1000);

    digitalWrite(LED1, LOW);        // 7
    delay(1000);
    digitalWrite(LED1, HIGH);
    digitalWrite(LED2, HIGH);
    digitalWrite(LED3, HIGH);

    digitalWrite(LED4, LOW);        // 8
    delay(1000);

    digitalWrite(LED1, LOW);        // 9
    delay(1000);
    digitalWrite(LED1, HIGH);

    digitalWrite(LED2, LOW);        // 10
    delay(1000);

    digitalWrite(LED1, LOW);        // 11
    delay(1000);
    digitalWrite(LED1, HIGH);
    digitalWrite(LED2, HIGH);

    digitalWrite(LED3, LOW);        // 12
    delay(1000);

    digitalWrite(LED1, LOW);        // 13
    delay(1000);
    digitalWrite(LED1, HIGH);

    digitalWrite(LED2, LOW);        // 14
    delay(1000);

    digitalWrite(LED1, LOW);        // 15
    delay(1000);
    digitalWrite(LED1, HIGH);
    digitalWrite(LED2, HIGH);
    digitalWrite(LED3, HIGH);
    digitalWrite(LED4, HIGH);

  }

  return 0;

}