Limelight 3G

Limelight 3G is a professional computer vision camera designed specifically for robotics applications, from autonomous navigation to precise tracking of game elements. The compact aluminum case hides powerful hardware and a fully functional operating system that does not require in-depth programming knowledge.

Key Features:

• Hardware:
  • Sensor: OV9281 with global shutter, 1280x800 @ 120 FPS or 640x480 @ 240 FPS.
  • Lens: Interchangeable M12 with an 82° horizontal viewing angle.
  • Power: 4.1–16 V (up to 24 V for the version with the red button), consumption up to 4 W.
  • Connectivity: Gigabit Ethernet (RJ45) and USB-C for data and configuration.
  • Case: Solid aluminum, black anodized. Mounting via #10/M4 through-hole or M3 threaded mounting.
• Software capabilities (Limelight OS):
  • Out-of-the-box processing pipelines: 10 configurable pipelines, switchable on the fly.
  • 3D robot localization: Accurate position and orientation determination (MegaTag1/MegaTag2) with external IMU support.
  • AprilTag support: 2D/3D tag tracking up to 50 FPS.
  • Neural network models: Loading models for object detection (MobileNetSSD, 20 FPS) and image classification.
  • Flexible development: Support for custom pipelines in Python with OpenCV and other libraries.
  • Convenient interface: Web interface for setup, 3D scene visualization and calibration.
• Ease of integration: Support for standard protocols (NetworkTables, ROS, REST API), operation via USB as a network device (plug-and-play on Windows/Linux/MacOS/Android).

Connection recommendations:

• Power: Connect to the PDP/PDH via a 5A circuit breaker. For earlier versions (white button), it is highly recommended to use a separate VRM for protection.
• Network: Use high-quality twisted Cat6 cable (stranded, 20 AWG) with a flexible entry sleeve.
• Mounting: Use plastic washers to protect the coating and thread locker (Vibratite/blue Loctite) for M3 fasteners.

For whom: For FRC, FTC, and engineering teams who need a ready-made, reliable, and feature-rich computer vision tool with extensive capabilities right out of the box, without the need for complex third-party software configuration.