Product Overview
The UBTECH JIMU Robot Astrobot Series: Cosmos Kit is an app-enabled building and coding STEM learning kit designed to engage users in robotics, engineering, and programming. This kit allows for the construction of three distinct robot models: AstroBot, Rover, or Astron, with the flexibility to invent custom robotic creations. The learning experience is enhanced through interactive 3D building instructions and a block-based coding platform.

Image: The main AstroBot robot assembled from the Cosmos Kit, showcasing its modular design and colorful LED eyes.
Important Safety Information
WARNING: CHOKING HAZARD - Small parts. Not for children under 3 years.
This product contains small components that may pose a choking hazard. Adult supervision is recommended during assembly and play, especially for younger users. Ensure all parts are securely connected to prevent detachment during operation.
Package Contents
The UBTECH JIMU Robot Astrobot Series: Cosmos Kit includes 387 parts and connectors necessary for building your robot. The package typically contains:
- Servos
- Structural pieces
- Character pieces
- 1 Lithium Polymer battery (included)
- Specialized disassembly tool
Initial Setup
1. Battery Charging
Before first use, ensure the included Lithium Polymer battery is fully charged. Connect the charging cable to the robot's battery port and a suitable USB power source. The charging indicator will provide status updates.
2. App Download and Installation
The JIMU Robot experience is app-enabled. Download the free 'JIMU' app from your device's official app store (available for iOS and Android devices). Search for 'JIMU Robot' to locate the correct application.
Note on Compatibility: Some devices, such as Kindle Fires, may require sideloading Google Play to access the JIMU app. App availability and performance can vary by device and operating system version. Always refer to the official JIMU Robot website for the latest compatibility information.
Assembly Instructions
The UBTECH JIMU app provides comprehensive, step-by-step, 3D, 360° animated building instructions. These instructions guide you through constructing the three primary robot configurations: AstroBot, Rover, and Astron. You also have the creative freedom to design and build your own unique robot.

Image: A tablet displaying the interactive 3D building instructions within the JIMU app, showing a robot being assembled.

Image: The AstroBot configuration, a bipedal robot with expressive LED eyes.

Image: The Astron configuration, a humanoid robot with a compact design.

Image: The Rover configuration, a tracked vehicle robot with rear thrusters.

Image: A visual representation of the three distinct robot models (AstroBot, Rover, Astron) that can be built from the Cosmos Kit.

Image: Two children interacting with their assembled JIMU robots, demonstrating the engaging play experience.
Operation and Programming
1. Connecting to the App
After building your robot, open the JIMU app. Ensure your device's Bluetooth is enabled. The app will guide you through connecting to your JIMU Robot. Follow the on-screen prompts to establish a connection.
2. Remote Control
Once connected, the app provides a remote control interface to directly operate your robot. You can control movement, activate lights, and trigger sounds or pre-programmed actions.
3. Blockly Coding
The JIMU app features a Blockly coding platform, allowing you to program your robot using a visual, drag-and-drop interface. This platform enables you to:
- Program your robot to navigate obstacles.
- Teach it to pick up objects.
- Control light and sound effects.
- Add unique personality and movements.
Explore the app's coding challenges to test and enhance your programming skills.

Image: A tablet displaying the Blockly coding interface, showing various command blocks used to program robot actions.
4. PRP (Pose, Record, Play) Function
Utilize the PRP function within the app to create entirely new, custom actions for your robot. This feature allows you to manually pose the robot, record the sequence of movements, and then play them back.
Care and Maintenance
Cleaning
To clean your JIMU Robot, gently wipe the surfaces with a dry, soft cloth. Avoid using harsh chemicals or abrasive materials, as these can damage the robot's components and finish.
Battery Care
The robot is powered by a Lithium Polymer battery. For optimal performance and longevity, ensure the battery is charged as needed and avoid prolonged periods of complete discharge. If you experience issues with the battery holding a charge, refer to the troubleshooting section or contact customer support.
Disassembly Tool
When disassembling your robot, especially for tight connections, use the provided long white tool. This specialized tool is designed to help separate pieces without causing damage. Avoid using other tools that may scratch or break the plastic components.
Troubleshooting Guide
Robot Not Responding or Connecting
- Check Battery Charge: Ensure the robot's battery is sufficiently charged.
- Bluetooth Connection: Verify that Bluetooth is enabled on your smart device and that the robot is within range.
- Restart App and Robot: Close the JIMU app completely and restart it. Power off and then power on your robot.
- App Compatibility: Confirm that your device's operating system is compatible with the latest version of the JIMU app. Check the official JIMU Robot website for updates.
Parts Difficult to Separate
- Use Disassembly Tool: Always use the specialized long white tool included in the kit to help separate tightly connected pieces.
- Avoid Force: Do not use excessive force or sharp objects, as this can damage the parts.
Track Issues (for Rover model)
- Reattach Tracks: If the tracks unsnap from the rotation piece, carefully reattach them, ensuring all links are securely connected.
- Check for Obstructions: Ensure no debris is interfering with the track movement.
Product Specifications
| Feature | Detail |
|---|---|
| Product Dimensions | 12 x 10 x 2.5 inches |
| Item Weight | 2.45 pounds |
| ASIN | B07GQDTZMR |
| Item Model Number | JRA0301 |
| Manufacturer Recommended Age | 8 years and up |
| Batteries | 1 Lithium Polymer battery (included) |
| Release Date | September 17, 2018 |
| Manufacturer | UBTECH ROBOTICS CORP |
Warranty and Customer Support
For detailed warranty information, technical assistance, or to inquire about replacement parts, please visit the official UBTECH website or contact their customer service department directly. Keep your proof of purchase, such as a receipt or order confirmation, as it may be required for warranty claims.
Important Note: App availability, compatibility, and ongoing support for the JIMU Robot app may vary over time and across different operating systems and devices. It is recommended to check the official JIMU Robot website or app store listings for the most current information regarding app functionality and device requirements.





