An Ultimate Guide to the Elecfreaks XGO-Lite Robot Dog

Welcome to the world of cutting-edge robotics with the Elecfreaks XGO-Lite Robot Dog, an extraordinary desktop-sized AI quadruped robot powered by the Raspberry Pi CM4 module. Designed for both education and entertainment, the XGO-Lite boasts impressive capabilities such as omnidirectional movement, six-dimensional posture control, and advanced AI features like face detection and speech recognition.

Whether you’re a tech enthusiast, a student, or a seasoned developer, this versatile robot offers a unique platform for exploring the fascinating realms of robotics and artificial intelligence. Join us as we delve into the features, functionalities, and endless possibilities that the XGO-Lite Robot Dog brings to the table.

The XGO-Lite Robot Dog is a compact, AI-powered quadruped robot developed by Elecfreaks, featuring 12 degrees of freedom and an integrated gripper. It is powered by a Raspberry Pi CM4 module, making it suitable for AI edge computing applications.

This robot dog offers a range of advanced capabilities, including omnidirectional movement, six-dimensional posture control, and various motion gaits, allowing it to navigate and perform tasks with impressive agility and precision. The XGO-Lite Robot Dog is an advanced educational tool for hobbyists, students, and tech enthusiasts.

It supports multiple programming environments and can perform complex AI tasks like face detection and speech recognition, setting it apart from other educational robots. This versatile platform is ideal for both educational and personal projects, making it a valuable asset for anyone interested in robotics and artificial intelligence.

Each component is carefully packed to ensure you have everything needed to get started with your robot dog. The inclusion of accessories like the colored balls and cubes allows for immediate interaction and testing of the robot’s capabilities, providing a hands-on learning experience right out of the box.

• CM4 XGO
• A Charger
• Micro HDMI to HDMI cable
• Type C USB Hub
• Instruction Manual
• Colored Balls
• Bolt drivers
• Screws

To start the robot, place it flat on its belly to avoid any joint problems, then press the power switch on its back. The ring light will flash quickly and then stay on as the robot stands up, showing it’s ready to use.To turn it off, press the power switch again; the robot will lie down and the light will go out, indicating it has powered off.

When the battery is low, the ring light will flash, signaling that it’s time to charge it using the included charger, which takes about 2 hours for a full charge. Make sure the robot is on a stable surface during these steps to avoid any movement issues.

Servo Motors

The XGO-Lite Robot Dog is equipped with high-performance motors called serial servos, which are used to control its movements. These servos are special because they can send information back about their position, allowing the robot to move very precisely.

Each leg of the robot dog has three of these servos, one each for the elbow, shoulder, and hip joints. This setup is similar to how real animals’ legs work, giving the robot a smooth and lifelike way of walking and moving. The servos’ ability to provide feedback about their positions is crucial. It means the robot knows exactly how its joints are aligned at all times.

This feedback helps the robot perform complex movements and stay balanced, even when it encounters obstacles or changes in the surface it’s walking on. This advanced control system is what allows the XGO-Lite Robot Dog to move as naturally and stably as a real four-legged animal.

The Robotic Arm

The XGO-Lite Robot Dog comes with a strong and versatile mechanical arm that has three movable joints. This means it can bend and rotate in multiple directions, similar to how your arm can move at the shoulder, elbow, and wrist. What’s impressive about this arm is that it can lift objects that weigh more than half as much as the robot itself, making it quite powerful for its size.

This mechanical arm is a major feature because it allows the robot to do a variety of tasks. For example, it can pick up and move items, interact with objects around it, and perform demonstrations that show off its capabilities. The arm can be controlled very precisely, which means it can handle delicate tasks and perform complex movements smoothly.

Because of its flexibility and strength, the arm makes the robot useful for many different purposes. In educational settings, it can help students learn about robotics and engineering by allowing them to experiment with different tasks and challenges.

In practical applications, the arm can be used for things like sorting items, assembling small components, or even playing games. Overall, the mechanical arm significantly increases what the XGO-Lite Robot Dog can do, making it a valuable tool for learning and exploration.

CM4 Module

The CM4 module is a key component of the XGO-Lite Robot Dog, designed to enhance its functionality and user interaction. It includes;

• 2.0-inch IPS Color Display: This is a small, high-quality screen that shows clear and colorful images and information. It’s like the screen on your smartphone but smaller.
• Four Programmable Buttons: These buttons can be set up to perform different actions or commands. You can program them to do things like start a specific task, change settings, or switch between different modes of operation.
• 5-Megapixel Camera: This is a camera that can take high-resolution pictures and videos. It’s similar to the camera on a smartphone and is used for tasks like recognizing faces or objects.
• Digital Microphone: This microphone can pick up sounds and voices. It allows the robot to hear and respond to voice commands, making it interactive and responsive to its environment.
• Cavity Speaker: This speaker can play sounds and speech. It enables the robot to “talk” or make noises, adding to its interactivity.

The CM4 module’s main strength lies in its ability to support advanced AI functions like:

• Image Recognition: The robot can see and identify objects and people.
• Face Detection: The robot can recognize and respond to different faces.
• Speech Recognition: The robot can understand and respond to spoken commands.

These features make the CM4 module a powerful AI terminal, meaning it can handle complex tasks and interact with users in a more natural way.

Raspberry Pi CM4 Integration: The CM4 is a compact but powerful computer module. It provides the robot with strong processing capabilities, meaning it can run complex programs and handle multiple tasks at once. This makes the robot very versatile, able to perform a wide range of functions from simple movements to advanced AI tasks.

User Interaction: The display and buttons on the CM4 module allow you to interact directly with the robot. You can make quick changes, adjust settings, and get real-time feedback right on the robot itself, without needing an external computer or device. This makes it easy to control and use the robot in various situations.

15 Degrees of Freedom

The XGO-Lite Robot Dog is equipped with high-performance serial servos, which are crucial for its advanced movement capabilities.

High-Performance Serial Servos

These servos are advanced actuators that provide precise control over the robot’s joints. Each servo can report its position back to the controller, enabling real-time feedback and adjustments. This feedback loop allows the robot to perform complex movements accurately and consistently.

15 Active Joints

The robot dog has 15 active joints distributed across its body, enabling a high degree of freedom in movement. Each leg is equipped with three servos, corresponding to the hip, shoulder, and elbow joints. This arrangement allows the robot to mimic the natural movements of quadruped animals, providing a lifelike range of motion.

Kinematics Decoupling

Kinematics decoupling refers to the ability to control the position and orientation of the robot’s body independently of its legs. This means the robot can adjust its posture without changing its position on the ground. For example, it can tilt its body or lower itself closer to the ground while maintaining stability and balance.

Omnidirectional Motion

The combination of high-performance servos and kinematics decoupling allows the XGO-Lite Robot Dog to perform omnidirectional motion. This means it can move in any direction—forward, backward, left, right, and diagonally—with ease. The robot can also rotate on its axis, providing smooth and continuous motion in any direction.

Smooth Gait in Any Direction

The robot’s control system coordinates the movement of all 15 joints to ensure a smooth gait, regardless of the direction of travel. This involves precise timing and synchronization of each joint’s movement to maintain balance and fluidity. The result is a robot that can walk, trot, and run with a natural and stable gait, similar to that of real quadruped animals.

Self-Stabilization

The ELECFREAKS CM4 XGO Robot Dog Kit for Raspberry Pi is equipped with a sophisticated 6-IMU (Inertial Measurement Unit) system, which plays a crucial role in its ability to maintain stability and balance. The IMU system is composed of multiple sensors that work together to provide comprehensive data about the robot’s orientation and movement.

These sensors include accelerometers, which measure the robot’s acceleration along three axes (X, Y, and Z), and gyroscopes, which measure the rate of rotation around the three axes. This combination of data helps determine the direction and magnitude of any movement or tilt, as well as the speed and direction of rotation.

But what does it actually means? The attitude data from the IMU is fed into a closed-loop control system. In this system, the robot continuously monitors its own position and movement, comparing it against the desired state.

If any discrepancies are detected, such as the robot starting to tilt or move unexpectedly, the control system adjusts the actuators (such as the servos in the legs) to correct the position and maintain balance. This real-time feedback mechanism allows the XGO Robot Dog to remain stable even on uneven or moving surfaces.

Intelligent Robotic Arm

The XGO-Lite Robot Dog features a powerful mechanical arm equipped with three free joints, enabling it to perform a wide range of movements and tasks. This arm is designed with high-strength materials and advanced servo motors, allowing it to lift and manipulate objects with remarkable precision.

Impressively, the arm can grab and hold items that weigh more than half of the robot’s own weight. This capability not only demonstrates the arm’s strength but also its versatility, making it suitable for various applications such as object manipulation, interactive demos, and practical tasks that require a high degree of dexterity and control.

AI Capabilities

The XGO-Lite Robot Dog is equipped with advanced AI capabilities, allowing it to perform tasks like recognizing faces, identifying objects, and understanding speech. These tasks are managed by its powerful CM4 module, which processes information quickly and efficiently.

• Face Detection: The robot can look at a group of people and identify individual faces. This means it can recognize and remember different people, which can be useful for personalized interactions.
• Object Classification: The robot can look at various objects and identify what they are. For example, it can distinguish between a ball, a cup, or a book. This ability helps it to interact with and respond appropriately to different items in its environment.
• Speech Recognition: The robot can listen to spoken words and understand them. This allows you to give it voice commands, making it easier to control and interact with.

These AI features enable the robot to interact intelligently with its surroundings. It can respond to changes in its environment and perform tasks based on what it sees and hears. This makes the XGO-Lite a valuable tool for learning about AI and machine learning, as it demonstrates these principles in a practical, hands-on way.

The robot supports graphical programming, which is a visual way of creating programs using simple blocks, making it easy for beginners to start coding. For more advanced users, it also supports Python, a popular programming language. This flexibility means that both new learners and experienced programmers can use the robot to develop their own custom applications.

The built-in AI capabilities of the XGO-Lite Robot Dog make it a practical tool for exploring real-world AI scenarios. You can start with simple tasks like recognizing faces or objects, and then move on to more complex behaviors, such as interacting with its environment in sophisticated ways. This makes the robot a powerful educational resource, helping users understand and experiment with AI technologies.

To get your XGO-Lite Robot Dog connected to your WiFi network, follow these detailed steps to ensure a smooth setup and optimal performance. This guide will walk you through configuring your router or mobile hotspot, troubleshooting connection issues, and accessing the robot’s control interface.

Step:1 - Configuring Your Router or Mobile Hotspot

SSID and Password

• Set your router or mobile hotspot’s SSID (network name) to “XGO2”.
• Set the password to “LuwuDynamics”.

Network Frequency

• Ensure that your network operates on a 2.4GHz frequency or a mixed frequency (2.4GHz and 5GHz). The XGO-Lite Robot Dog is optimized for 2.4GHz networks, which provide better range and compatibility with IoT devices.

Step:2 - Connecting the Robot

• Upon powering on the XGO-Lite Robot Dog, it will automatically search for the network with the SSID “XGO2” and attempt to connect using the provided password.
• The robot’s indicator light will provide visual feedback on the connection status:

Flashing Light: Indicates the robot is attempting to connect.

Steady Light: Indicates a successful connection.

Step:3 - Accessing the Control Interface

• Once connected to the network, you can control the XGO-Lite Robot Dog using the XGOBOT app.
• Download and install the XGOBOT app on your mobile device from the appropriate app store (Google Play for Android or the App Store for iOS).
• Open the app and follow the on-screen instructions to connect to the robot. The app will automatically detect the robot on the network, allowing you to control its movements, access programming features, and utilize its AI capabilities.

Troubleshooting

If the XGO-Lite Robot Dog fails to connect to your network, try the following troubleshooting steps:

Double-Check SSID and Password:

• Ensure that the SSID is exactly “XGO2” and the password is “LuwuDynamics”. Both are case-sensitive and must match exactly for the connection to succeed.

Network Range and Strength:

• Make sure the robot is within range of your WiFi network. If the signal is weak, move the robot closer to the router or hotspot.
• Avoid placing the robot near large metal objects or other electronics that may interfere with the WiFi signal.

Network Compatibility:

• Confirm that your network is set to 2.4GHz or mixed frequency. Some routers may require manual configuration to enable 2.4GHz if they are set to 5GHz only.

Restart Devices:

• Restart both your router/hotspot and the XGO-Lite Robot Dog. Sometimes, a simple reboot can resolve connectivity issues.

Network Settings:

• Check your router’s settings to ensure it is not blocking the robot’s connection. Disable any MAC address filtering or parental controls that may restrict the robot’s access to the network.

Firmware Updates:

• Ensure that both your router and the XGO-Lite Robot Dog are running the latest firmware versions. Check the manufacturer’s website for updates and follow the instructions to update the devices if necessary.

The robot operates in three distinct modes. Each mode offers a unique way to interact with and explore the robot’s capabilities, catering to different levels of expertise and interest.

Demo Mode

In Demo Mode, you can control the XGO-Lite Robot Dog using the buttons on its AI module. This makes it easy and fun to see what the robot can do without needing any other devices. Here’s a simple breakdown of how it works:

• A and B keys: These buttons are used to scroll through different options or actions that the robot can perform. Think of them as “up” and “down” arrows on a keyboard.
• C key: This button acts as an “exit” or “back” button. If you make a selection you want to undo, press the C key to go back.
• D key: This is the “confirmation” button. Once you’ve selected an action with the A and B keys, press the D key to confirm and execute it.

Demo Mode is designed to let you quickly explore the robot’s capabilities. It comes with a set of pre-programmed actions that showcase the robot’s range of motion and interactive features. For example, you can make the robot walk in different directions, turn around, or perform small tricks.

One of the impressive features of the XGO-Lite is its ability to move in any direction (omnidirectional movement) and maintain its balance even on uneven surfaces. This means you can see how well it adjusts its posture and stays stable, no matter the terrain.

Using Demo Mode, you can get a hands-on introduction to what the XGO-Lite Robot Dog can do. It’s a convenient way to demonstrate its abilities and run quick tests, making it perfect for presentations or just having fun at home.

RC Mode

In RC Mode, you can control your XGO-Lite Robot Dog using your mobile phone. Here’s how to set it up and what you can do with it:

Explore and Test: Use RC Mode to explore the robot’s environment. You can test how the robot responds to different commands and see how it handles various tasks and obstacles. Whether you’re navigating through tight spaces, picking up objects with its arm, or simply driving around, RC Mode provides a fun and interactive way to control your robot.

Download the XGOBOT App: First, download and install the XGOBOT app on your mobile phone. This app is available for both Android and iOS devices. You can find it by searching for “XGOBOT” in your phone’s app store.

Connect the Robot to the Network: Turn on your XGO-Lite Robot Dog and make sure it’s connected to your Wi-Fi network. The robot will automatically connect if the Wi-Fi network name (SSID) is set to “XGO2” and the password is “LuwuDynamics”. Ensure your phone is connected to the same Wi-Fi network.

Select RC Mode: On the robot’s AI module, use the buttons to navigate to the RC mode. The buttons on the module allow you to scroll through different options. Once you find RC mode, press the confirmation button to select it. The robot’s screen will display an IP address.

Enter the IP Address in the App: Open the XGOBOT app on your phone. It will ask for the IP address displayed on the robot’s screen. Enter this IP address into the app to connect your phone to the robot.

Real-Time Video Feed and Controls: Once connected, the app will show a real-time video feed from the robot’s camera. You’ll see what the robot sees, allowing you to navigate and interact with its surroundings remotely. The app has easy-to-use controls for moving the robot forward, backward, left, and right, as well as other interactive functions.

User-Friendly Interface: The XGOBOT app is designed to be user-friendly, with intuitive controls that make it simple to operate the robot. Even if you’re a beginner, you’ll find it easy to drive the robot around and explore its capabilities.

Programming Mode

In Programming Mode, you can make the XGO-Lite Robot Dog do exactly what you want by writing and running your own programs. Here’s how it works in simple steps:

Connect to the Network: First, you need to connect the robot to your Wi-Fi network. This allows your computer to communicate with the robot.

Enter Programming Mode: On the robot’s AI module (the small screen with buttons), use the buttons to navigate to Programming Mode. This puts the robot in a state where it’s ready to receive programming commands.

Access the Programming Interface: Open a web browser on your computer and enter the IP address displayed on the robot’s screen. This will take you to the robot’s programming interface, which is a web page where you can write and test your code.

Choose Your Programming Method:

• Graphical Interface: This is a user-friendly way to program the robot using visual blocks that you can drag and drop. It’s similar to puzzle pieces that fit together to form a sequence of actions.
• Python Library: For more advanced users, you can write programs in Python, a popular programming language. This method provides more control and flexibility over what the robot can do.

Supported Environments: The robot supports various programming environments. One notable example is ROS (Robot Operating System), which is used for more advanced tasks like kinematics (how the robot moves) and dynamics (how the robot responds to forces).

Endless Possibilities: Programming the robot opens up endless possibilities for customization and experimentation. You can make the robot:

• Perform specific tasks, like picking up objects or following a path.
• Respond to voice commands, adding an interactive element.
• Interact with its environment in complex ways, like avoiding obstacles or recognizing faces.

By learning to program the XGO-Lite Robot Dog, you can create unique behaviors and applications, making it an excellent tool for both education and research. Whether you’re a beginner or an advanced programmer, this mode allows you to explore and push the boundaries of what the robot can do.

The XGO-Lite Robot Dog is a versatile and powerful tool perfect for both educational and development purposes. For students, it offers hands-on learning in robotics, programming, and AI, making complex concepts accessible and engaging.

Educators can use it to bring lessons to life with interactive demonstrations and projects. Hobbyists and developers will find endless possibilities for experimentation and innovation with its advanced features and robust construction. Whether you’re a student, teacher, or tech enthusiast, the XGO-Lite provides a dynamic platform for exploring the fascinating world of robotics and AI.