/**
 * @file pins.h
 * @brief Pin definitions for Minecraft Orb - ESP32-C3 SuperMini
 *
 * Hardware Configuration:
 * - SSD1306 OLED Display (128x64) via I2C
 * - RC522 RFID Reader via SPI
 * - White LED indicator
 * - Piezo buzzer for audio feedback
 * - TTP223 capacitive touch sensor
 */

#ifndef PINS_H
#define PINS_H

// =============================================================================
// I2C - SSD1306 OLED Display (Right side of board)
// =============================================================================
#define I2C_SDA         2   // I2C Data
#define I2C_SCL         3   // I2C Clock
#define OLED_ADDRESS    0x3C  // Default I2C address for SSD1306

// =============================================================================
// SPI - RC522 RFID Reader (Left side of board)
// Pin order matches RC522 board: SDA, SCK, MOSI, MISO, RST
// =============================================================================
#define RC522_CS        6   // SDA - Chip Select for Reader
#define SPI_SCK         7   // SCK - SPI Clock
#define SPI_MOSI        8   // MOSI - SPI Data Out
#define SPI_MISO        9   // MISO - SPI Data In
#define RC522_RST       10  // RST - Reset for Reader

// =============================================================================
// LED (Right side of board)
// =============================================================================
#define LED_WHITE       4   // White LED (via 100 ohm resistor)

// =============================================================================
// Buzzer (Right side of board)
// =============================================================================
#define BUZZER_PIN      0   // Piezo buzzer (passive)

// =============================================================================
// Touch Sensor (Left side of board)
// =============================================================================
#define TOUCH_PIN       5   // TTP223 capacitive touch sensor (GPIO0-5 for deep sleep wake)

#endif // PINS_H