const int latchPin =5;
const int clockPin =18;
const int dataPin =19;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  pinMode(latchPin, OUTPUT);
  pinMode(clockPin, OUTPUT);
  pinMode(dataPin, OUTPUT);

};

void loop() {
  byte ledPattern= B00000010; //0

  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, ledPattern);
  digitalWrite(latchPin, HIGH);

  // put your main code here, to run repeatedly:
  delay(1000); // this speeds up the simulation

 ledPattern = B10011111;//1

  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, ledPattern);
  digitalWrite(latchPin, HIGH);

  delay(1000);

   ledPattern = B00100101;//2

  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, ledPattern);
  digitalWrite(latchPin, HIGH);

  delay(1000); ledPattern = B00001100;//3

  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, ledPattern);
  digitalWrite(latchPin, HIGH);

  delay(1000); ledPattern = B10011000;//4

  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, ledPattern);
  digitalWrite(latchPin, HIGH);

  delay(1000); ledPattern = B01001000;//5

  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, ledPattern);
  digitalWrite(latchPin, HIGH);

  delay(1000); 
  ledPattern = B01000000;//6

  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, ledPattern);
  digitalWrite(latchPin, HIGH);

  delay(1000);
  ledPattern = B00011111;//7

  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, ledPattern);
  digitalWrite(latchPin, HIGH);

  delay(1000); ledPattern = B00000000;//8

  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, ledPattern);
  digitalWrite(latchPin, HIGH);

  delay(1000);
  ledPattern = B00001000;//9
  digitalWrite(latchPin, LOW);
  shiftOut(dataPin, clockPin, LSBFIRST, ledPattern);
  digitalWrite(latchPin, HIGH);

  delay(1000);
}