#include <Arduino.h>

int counter = 0; 
const int segPins[] = {PA4, PA5, PA6, PA7, PA8, PA11, PA12};

// Mapping Common Anode
const uint8_t anode_map[][7] = {
  {0,0,0,0,0,0,1}, {1,0,0,1,1,1,1}, {0,0,1,0,0,1,0}, 
  {0,0,0,0,1,1,0}, {1,0,0,1,1,0,0}, {0,1,0,0,1,0,0}, 
  {0,1,0,0,0,0,0}, {0,0,0,1,1,1,1}, {0,0,0,0,0,0,0}, {0,0,0,0,1,0,0}
};

void updateDisplay() {
  for (int i = 0; i < 7; i++) {
    digitalWrite(segPins[i], anode_map[counter][i]);
  }
}

void setup() {
  // Setup Segmen
  for (int i = 0; i < 7; i++) {
    pinMode(segPins[i], OUTPUT);
  }

  // Guna pin D0 dan D1 (Guna nombor pin fizikal)
  pinMode(0, INPUT_PULLUP); // D0 adalah GPIO pin 0
  pinMode(1, INPUT_PULLUP); // D1 adalah GPIO pin 1

  updateDisplay();
}

void loop() {
  // Test Butang A (D0 / Pin 0)
  if (digitalRead(0) == LOW) {
    delay(150); // Debounce lebih lama sikit
    if (counter < 9) {
      counter++;
      updateDisplay();
    }
    while(digitalRead(0) == LOW); 
  }

  // Test Butang B (D1 / Pin 1)
  if (digitalRead(1) == LOW) {
    delay(150);
    if (counter > 0) {
      counter--;
      updateDisplay();
    }
    while(digitalRead(1) == LOW);
  }
}