Shift Test

byte data = 11;
byte clk = 12;
byte latch = 8;

void setup() {
  pinMode(data, OUTPUT);
  pinMode(clk, OUTPUT);
  pinMode(latch, OUTPUT);
}


void loop() {
  for(int a = 0; a < 65535; a++){
    for(byte pos = 0; pos < 16; pos++){
      if(a & (0x01 << pos)){
        digitalWrite(data, HIGH);
      }else{
        digitalWrite(data, LOW);
      }

      digitalWrite(clk, LOW);
      digitalWrite(clk, HIGH);
      digitalWrite(latch, LOW);
      digitalWrite(latch, HIGH);

      delay(100);
    }
    delay(1000);
  }
}