// Pin configuration for 1st decoder (Module selection)
const int MOD_0 = 6;   // A0, A1, A2 of the 1st decoder
const int MOD_1 = 7;
const int MOD_2 = 8;

// Pin configuration for 2nd decoder (Pin selection)
const int PIN_0 = 9;   // A0, A1, A2 of the 2nd decoder
const int PIN_1 = 10;
const int PIN_2 = 11;

// Control pins for SET and RESET
const int RESET = 5;  // Reset pin of the 1st decoder
const int SET = 4;    // Set pin of the 1st decoder

void setup() {
  // Initialize Serial communication for receiving numbers
  Serial.begin(9600);

  // Configure all pins as OUTPUT
  pinMode(MOD_0, OUTPUT);
  pinMode(MOD_1, OUTPUT);
  pinMode(MOD_2, OUTPUT);

  pinMode(PIN_0, OUTPUT);
  pinMode(PIN_1, OUTPUT);
  pinMode(PIN_2, OUTPUT);

  pinMode(SET, OUTPUT);
  pinMode(RESET, OUTPUT);

  // Ensure all pins are initially OFF
  pinOff();
}

void loop() {
  // Check if data is available in the Serial Monitor
  if (Serial.available() > 0) {
    int number = Serial.parseInt(); // Read the input number (1–10)

    // Validate the input and activate the corresponding Braille pattern
    if (number >= 1 && number <= 10) {
      activateBraille(number);
    } else {
      Serial.println("Invalid input! Please enter a number between 1 and 10.");
    }
  }
}

void activateBraille(int number) {
  // Turn off all dots before activating new pattern
  pinOff();

  // Define Braille patterns for numbers 1 to 10
  // Each array represents dots 1 to 6: {Dot1, Dot2, Dot3, Dot4, Dot5, Dot6}
  int brailleDots[10][6] = {
    {1, 0, 0, 0, 0, 0}, // Number 1
    {1, 1, 0, 0, 0, 0}, // Number 2
    {1, 0, 0, 1, 0, 0}, // Number 3
    {1, 0, 0, 1, 1, 0}, // Number 4
    {1, 0, 0, 0, 1, 0}, // Number 5
    {1, 1, 0, 1, 0, 0}, // Number 6
    {1, 1, 0, 1, 1, 0}, // Number 7
    {1, 1, 0, 0, 1, 0}, // Number 8
    {1, 0, 0, 1, 0, 1}, // Number 9
    {1, 0, 0, 1, 1, 1}  // Number 10
  };

  // Select dots based on the number's Braille pattern
  for (int i = 0; i < 6; i++) {
    if (brailleDots[number - 1][i] == 1) {
      selectDot(i + 1); // Activate the corresponding dot (1 to 6)
      pinSet();
    }
  }

  // Print feedback to Serial Monitor
  Serial.print("Activated Braille pattern for number: ");
  Serial.println(number);
}

void selectDot(int dot) {
  // Select the appropriate module (decoder 1) and pin (decoder 2) for the given dot
  moduleSelect(1); // Assuming all dots are in module 1
  pinSelect(dot);
}

void moduleSelect(int decimalValue) {
  // Select the module by setting MOD_* pins
  decimalValue--; // Adjust for 0-based indexing
  digitalWrite(MOD_0, (decimalValue >> 0) & 0x01);
  digitalWrite(MOD_1, (decimalValue >> 1) & 0x01);
  digitalWrite(MOD_2, (decimalValue >> 2) & 0x01);
}

void pinSelect(int decimalValue) {
  // Select the pin by setting PIN_* pins
  decimalValue--; // Adjust for 0-based indexing
  digitalWrite(PIN_0, (decimalValue >> 0) & 0x01);
  digitalWrite(PIN_1, (decimalValue >> 1) & 0x01);
  digitalWrite(PIN_2, (decimalValue >> 2) & 0x01);
}

void pinSet() {
  // Activate the selected pin
  digitalWrite(SET, HIGH);
  digitalWrite(RESET, LOW);
}

void pinOff() {
  // Deactivate all pins
  digitalWrite(SET, LOW);
  digitalWrite(RESET, LOW);
}