# Expansion Equipment / Attachments

The Go2 Quadruped robot is a versatile platform suitable for a range of applications. It can navigate and explore, leveraging 4D LIDAR and obstacle avoidance for autonomous movement and terrain mapping. Its capabilities allow for robotics education, programming practise, and AI experimentation, with secondary development support.

The robot is also effective for surveillance and inspection, providing real-time monitoring and autonomous access to hard-to-reach or hazardous areas. In addition, it supports logistics and assistance tasks, such as lightweight object transportation and routine operations, especially when paired with the D1 Servo Arm.

## Default Specs

<table data-header-hidden><thead><tr><th width="175">Category</th><th width="263">Feature/Stat</th><th>Details</th></tr></thead><tbody><tr><td><strong>General</strong></td><td>Robot Type</td><td>Quadruped, consumer-grade interactive robot</td></tr><tr><td></td><td>Degrees of Freedom</td><td>12 (precision joint motors)</td></tr><tr><td></td><td>Material</td><td>Aluminium alloy and high-strength engineering plastics</td></tr><tr><td><strong>Speed</strong></td><td>Maximum Running Speed</td><td>5 m/s (laboratory conditions)</td></tr><tr><td></td><td>Auto-follow Speeds</td><td>Slow: 1.5 m/s; Fast: 3.0 m/s</td></tr><tr><td><strong>Remote Control</strong></td><td>Distance</td><td>Over 30 meters</td></tr><tr><td></td><td>Modes</td><td>Companion remote, handheld remote, app-based</td></tr><tr><td></td><td>App Features</td><td>Image transmission, OTA updates, custom modes, real-time controls</td></tr><tr><td><strong>Navigation</strong></td><td>Intelligent Avoidance</td><td>360°×90° sensing via 4D LIDAR L1, 0.05m minimum detection range</td></tr><tr><td></td><td>Side-follow System</td><td>ISS2.0 with 50% improved positioning accuracy</td></tr><tr><td></td><td>Obstacle Avoidance</td><td>Forward only</td></tr><tr><td><strong>Voice Interaction</strong></td><td>Voice Control</td><td>Supports real-time commands and high-accuracy voice recognition (PRO and EDU versions only)</td></tr><tr><td><strong>Build &#x26; Mobility</strong></td><td>Maximum Climbing Angle</td><td>40° (30° for AIR version)</td></tr><tr><td></td><td>Maximum Stair Step Height</td><td>16 cm</td></tr><tr><td></td><td>Terrain Suitability</td><td>Flat surfaces; not for wet, dusty, or soft terrains</td></tr><tr><td></td><td>Stability Mechanism</td><td>Composite force and position control for precision</td></tr><tr><td><strong>Battery</strong></td><td>Endurance</td><td>1–2 hours depending on load and terrain</td></tr><tr><td></td><td>Battery Placement</td><td>Inserted on the side; 3 or more bars recommended for operation</td></tr><tr><td><strong>Customization</strong></td><td>Custom Modes</td><td>Various motions (e.g., dance, moonwalk, stretch) via app or remote</td></tr><tr><td><strong>Dimensions</strong></td><td>Size and Weight</td><td>Not explicitly specified; lightweight design</td></tr><tr><td><strong>Accessories</strong></td><td>Auto Retractable Strap</td><td>Adjustable hand strap (PRO version only)</td></tr><tr><td></td><td>Consumable Parts</td><td>Spare foot-end pads included for rough terrain use</td></tr><tr><td><strong>Limitations</strong></td><td>Environmental Conditions</td><td>Operates best in 5°C–35°C; not waterproof or dust-proof</td></tr><tr><td></td><td>Friction Requirements</td><td>Unsuitable for icy, wet, or low-friction grounds</td></tr></tbody></table>

## Dev Cases

### Navigation and exploration&#x20;

Autonomous navigation: Equipped with 4D LIDAR and obstacle avoidance for autonomous movement and terrain mapping.

Terrain exploration: Suitable for navigating and exploring controlled environments.

### Surveillance and inspection&#x20;

Remote monitoring: Real-time image transmission allows for surveillance or inspection in hard-to-reach or unsafe areas.

Inspection tasks: Useful for inspecting industrial or confined areas autonomously.

### Logistics and Assistance&#x20;

Lightweight object transportation: Can carry or move lightweight items, especially when paired with the D1 Servo Arm.

Routine assistance: Assists in controlled tasks such as fetching or organising objects in structured environments.

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## Attachments&#x20;

### Lidar kit

OS2 Long-Range High-Resolution Imaging Lidar:

The robot dog can be equipped with a Lidar Scanning Kit. We currently have the OS2 Long Range – High resolution Imaging lidar available. This lidar system has been developed to handle the most challenging tasks offering robustness and reliability.

* Up to a 400m scanning range (depending on lighting and weather conditions)
* Minimum range 0.8m
* 22.5 degree Vertical Field of View
* 360 Degree Horizontal
* Ip68/69K Rating for a range of weather conditions
* 128 channels of High-resolution imaging to 0.1cm accuracy
* 2.62m points per second
* Near-infrared capture
* Open-source ROS Drivers

### D1 servo arm&#x20;

Allows lifting light-weight objects with the use of a clamp jaw.

* The D1 Servo arm is an addition to the Robot Dog which expands the capabilities and interactivity of the unit. The Servo arm allows users to experiment with manual handling, object manipulation and general object interaction.
* The servo arm offers a max armspan of 550mm (without the jaws) 670mm(with gripper) and can handle up to 500g in weight, suited to education and practical operations.
* The servo arm can be programmed through the ROS platform for complex tasks. Simple controls are integrated and facilitated through the Go2s control interface.
* Typically, servo arms are used for research tasks such as data collection, particularly in hard to reach locations.

### GNSS receiver&#x20;

What is a GNSS receiver?

* The term “GNSS” stands for Global Navigation Satellite System and is used to describe an electronic device that receives and processes digital signals sent by satellites in space. This receiver then usese these signals to calculate its own location, velocity and time. In order for these receivers to operate correctly they should have an unobstructed line of sight to satellites in the sky to ensure accurate information transmission.
* This is a powerful tool that is used in combination with the lidar kit to assist with georeferencing mapping and scan data.

Emlid Reach RS2+ - GNSS Receiver: The GNSS (Global Navigation Satellite System) is a device that receives satellite signals to calculate location, velocity, and time, and is used with lidar systems for georeferencing mapping and scan data, with the Emlid Reach RS2+ offering features like centimetre-level precision, 22-hour battery life, and IP67 weatherproofing.

* The Emlid Reach RS2+ features includes:
* Cm level precision at over 60kms p/h
* Wifi, Bluetooth and LTE connectivity
* 22hr battery life
* Robust construction with IP67 Weatherproof ratings

### Jetson Orin NX 8GB

The Jetson Orin NX 8GB is a compact AI computing module by NVIDIA designed for edge computing and robotics. With a processing capability of 40 TOPS (trillion operations per second), it is powered by the NVIDIA Ampere architecture GPU, ARM Cortex CPU, and deep learning accelerators. This enables it to handle multiple neural networks in parallel and process data from high-resolution sensors.

* Performance: The 40 TOPS allows it to run complex AI models efficiently, including real-time inference for tasks like computer vision, natural language processing, and robotics.
* Applications :Common use cases include autonomous machines, smart cameras, industrial automation, and robotics operating systems (ROS) development.
* Connectivity and I/O: Supports high-speed interfaces like PCIe and USB, along with GPIOs for sensor and device integration.
* Energy Efficiency: Configurable power options (7–15W) make it suitable for power-constrained environments.
* Software Support: Compatible with the NVIDIA JetPack SDK, offering tools for AI deployment, sensor integration, and robotics programming.