registers_arduino

int DS1_pin = 12;   //data serial
int STCP1_pin = 13; //latch pin
int SHCP1_pin = 14; //clock pin
boolean registers[8];

void setup() {
  Serial.begin(115200);
  pinMode(DS1_pin, OUTPUT);
  pinMode(STCP1_pin, OUTPUT);
  pinMode(SHCP1_pin, OUTPUT);
  writereg();
  for (int i = 0; i < 9; i++) {
    registers[i] = HIGH;
    delay(100);
    writereg();
  }
}

void loop() {

}
void writereg() {
  digitalWrite(STCP1_pin, LOW);
  for (int i = 7; i >= 0; i--) {
    digitalWrite(SHCP1_pin, LOW);
    digitalWrite(DS1_pin, registers[i]);
    digitalWrite(SHCP1_pin, HIGH);
  }
  digitalWrite(STCP1_pin, HIGH);
}

void relayOn(int i) {
  registers[i] = HIGH;
  writereg();
}

void relayOff(int i) {
  registers[i] = LOW;
  writereg();
}