saltybot_led_controller 0.1.0 NeoPixel LED strip controller for SaltyBot. Subscribes to system state topics (battery, balance, social, emotion, health) and renders animated LED patterns with smooth transitions. Supports configurable LED count, GPIO pin, and brightness. Publishes LED state status. sl-mechanical MIT rclpy std_msgs ament_python ament_copyright ament_flake8 ament_pep257 python3-pytest ament_python