// Pin definitions
const uint8_t numDigitalPins = 12;  // Digital pins 2 to 13 (exclude 0 and 1)
const uint8_t numAnalogPins = 8;    // Analog pins A0 to A7
const uint8_t firstDigitalPin = 2;  // Start from pin 2

void setup() {
  // Initialize all digital pins 2 to 13 as inputs with pull-up resistors
  for (int i = firstDigitalPin; i < 14; i++) {
    pinMode(i, INPUT_PULLUP);
  }

  // Start serial communication
  Serial.begin(115200);
}

void loop() {
  // Read digital pin states using direct port manipulation
  uint16_t digitalStates = 0;

  // PORTD (pins 2-7)
  uint8_t portDState = PIND >> 2;  // Shift right to exclude pins 0 and 1
  digitalStates |= portDState & 0x3F;  // Keep only 6 bits (pins 2-7)

  // PORTB (pins 8-13)
  uint8_t portBState = PINB;
  digitalStates |= (portBState & 0x3F) << 6;  // Shift left by 6 bits to append pins 8-13

  // Read analog pin values
  int analogValues[numAnalogPins];
  for (int i = 0; i < numAnalogPins; i++) {
    analogValues[i] = analogRead(i);
  }

  // Send all values via serial
  // Print digital states (bitfield)
  for (int i = 0; i < numDigitalPins; i++) {
    Serial.print((digitalStates & (1 << i)) ? "1 " : "0 ");  // Print each digital input state (1 or 0)
  }

  // Print analog values
  for (int i = 0; i < numAnalogPins; i++) {
    Serial.print(analogValues[i]);
    if (i < numAnalogPins - 1 || numDigitalPins > 0) {
      Serial.print(" ");
    }
  }

  Serial.println();  // End line after sending all values
}