#include <stdio.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"
#include "driver/gpio.h"
#include <esp32-hal-gpio.h>

// Definindo os pinos utilizados
#define LATCH_PIN 7    // pino de saída de armazenamento do registrador
#define CLOCK_PIN 6   // pino de clock do registrador
#define DATA_PIN 5    // pino de dados do registrador

void writeByte(uint8_t data) {
  digitalWrite(LATCH_PIN, LOW);
  for (int i = 0; i < 8; i++) {
    digitalWrite(CLOCK_PIN, LOW);
    if (data & (1 << i)) {
      digitalWrite(DATA_PIN, HIGH);
    } else {
      digitalWrite(DATA_PIN, LOW);
    }
    digitalWrite(CLOCK_PIN, HIGH);
  }
  digitalWrite(LATCH_PIN, HIGH);
}

void setup() {
  pinMode(LATCH_PIN, OUTPUT);
  pinMode(CLOCK_PIN, OUTPUT);
  pinMode(DATA_PIN, OUTPUT);
}

void app_main() {
  setup();

  uint8_t data = 0b11111001;
  writeByte(data);

  while(1) {
    // loop infinito
  }
  return 0;
}