sl-mechanical 3830db8225 feat: night mode controller (Issue #444)
Automatic night mode detection and stealth operation:
- Ambient light detection: auto-switch at 50 lux threshold
- Motor speed reduction: 50% speed in stealth mode
- LED control: dim to 5% minimum brightness with slow blue fade
- Face-only mode: disable TTS speaker, show text on face
- IR-based tracking: use IR cameras only (RGB disabled)
- Face brightness: reduce to 30% for low-light visibility
- Manual override: voice commands and gamepad toggle (Y button)
- Smooth transitions: 1-second fade between modes with ramps

Features:
- Hysteresis: 5 lux band prevents mode flickering
- Light sensor smoothing: 5-sample averaging for stability
- Transition manager: smooth motor ramp (2s), LED fade (0.5s)
- Multiple sensor support: RealSense IR, phone ambient sensor
- Stealth LED pattern: slow breathing dim blue (0.3 Hz)

Configuration:
- YAML-based threshold and behavior settings
- Per-subsystem transition timing
- Tracking parameter tuning for IR mode
- Face control with contrast boost

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
2026-03-05 09:05:16 -05:00

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XML

<?xml version="1.0"?>
<?xml-model href="http://download.ros.org/schema/package_format3.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
<package format="3">
<name>saltybot_night_mode</name>
<version>0.1.0</version>
<description>
Night mode controller for SaltyBot. Detects ambient light from sensors and
automatically switches to stealth mode with reduced motor speed, IR tracking,
dimmed LEDs, and face-only TTS. Includes manual override via voice/gamepad.
</description>
<maintainer email="sl-mechanical@saltylab.local">sl-mechanical</maintainer>
<license>MIT</license>
<depend>rclpy</depend>
<depend>std_msgs</depend>
<depend>sensor_msgs</depend>
<buildtool_depend>ament_python</buildtool_depend>
<test_depend>ament_copyright</test_depend>
<test_depend>ament_flake8</test_depend>
<test_depend>ament_pep257</test_depend>
<test_depend>python3-pytest</test_depend>
<export>
<build_type>ament_python</build_type>
</export>
</package>