{
  "_description": "Hardware configuration for DReader e-ink device",
  "_note": "This config matches the actual hardware: GPIO 22=prev, GPIO 27=next, GPIO 21=power, I2C on GPIO 2/3",

  "display": {
    "width": 1872,
    "height": 1404,
    "vcom": -2.0,
    "spi_hz": 24000000,
    "auto_sleep": true
  },

  "gpio_buttons": {
    "enabled": true,
    "pull_up": true,
    "bounce_time_ms": 200,
    "buttons": [
      {
        "name": "prev_page",
        "gpio": 22,
        "gesture": "swipe_right",
        "description": "Previous page button"
      },
      {
        "name": "next_page",
        "gpio": 27,
        "gesture": "swipe_left",
        "description": "Next page button"
      },
      {
        "name": "power_off",
        "gpio": 21,
        "gesture": "long_press",
        "description": "Power off button (long press to shutdown)",
        "comment": "You may want to implement shutdown logic in the application"
      }
    ]
  },

  "accelerometer": {
    "enabled": true,
    "tilt_enabled": false,
    "orientation_enabled": true,
    "calibration_file": "accelerometer_config.json"
  },

  "rtc": {
    "enabled": true
  },

  "power_monitor": {
    "enabled": true,
    "shunt_ohms": 0.1,
    "battery_capacity_mah": 3000,
    "low_battery_threshold": 20.0,
    "show_battery_interval": 100
  },

  "application": {
    "library_path": "/home/pi/Books",
    "auto_save_interval": 60,
    "force_library_mode": false,
    "log_level": "INFO"
  }
}