Yahboom Microbit V2 Smart Robot Car Kit Instruction Manual

1. Introduction

The Yahboom Microbit V2 Smart Robot Car Kit is an educational robotics platform designed for STEM learning and coding. It integrates the BBC Micro:bit V2 microcomputer with various sensors and modules to provide a comprehensive learning experience for users aged 10 and above. This kit allows for hands-on assembly and programming, fostering creativity and logical thinking through engaging projects.

The Micro:bit V2 board, included with this kit, features an acceleration sensor, magnetic sensor, two programmable buttons, 25 monochromatic LEDs, a built-in microphone, and speaker. This makes it a versatile tool for exploring microcomputer programming.

Image: The Yahboom Microbit V2 Smart Robot Car navigating an environment.

2. Product Features

• Micro:bit V2 Integration: Utilizes the BBC Micro:bit V2 for core control and programming.
• Multi-functional Design: Supports various functions including line tracking, ultrasonic obstacle avoidance, following, light discoloration, and music playback.
• Dual Programming Modes: Compatible with graphical block-based programming (MakeCode) for beginners and Python for advanced users.
• Easy Assembly: Designed for straightforward assembly with minimal tools, featuring anti-reverse connection data lines.
• Expansion Capabilities: The multi-function expansion board acts as the vehicle's chassis, equipped with RGB lights, sensors, buzzers, and various module interfaces, capable of driving 2 DC motors and 3 servos.
• Remote Control Options: Can be controlled via an infrared (IR) remote controller or a Bluetooth APP on a mobile phone.

Image: A close-up view of the robot car, highlighting its ultrasonic sensors and illuminated LEDs.

Image: An illustration detailing the features of the Micro:bit V2 board, including its touchable logo, built-in microphone, speaker, upgraded connector edge, and improved CPU performance.

3. Package Contents

Please verify that all components are present and in good condition upon opening the package.

Image: A comprehensive layout of all parts included in the kit, such as the Micro:bit V2 board, expansion board, ultrasonic module, motors, wheels, remote control, battery, and assembly tools.

• Micro:bit V2 board (Optional, included in this variant)
• Expansion board x1
• Vertical ultrasonic module + 4pin cable x1
• Motor x2
• Ultrasonic Acrylic Board x1
• Tire x2
• Aluminum alloy bracket x1
• Micro USB data cable x1
• Infrared remote control x1
• Screwdriver x1
• Track x1 (for line tracking)
• M3*40 copper pillar x4
• Universal wheel bracket x1
• Motor fixing bracket x2
• Universal wheel x1
• Lithium battery x1
• Battery Velcro x2
• Instruction manual x1
• Screw nut package
• Advanced packing box

4. Assembly Instructions

The Yahboom Microbit V2 Smart Robot Car is designed for easy assembly. Follow the detailed steps provided in the included instruction manual. You will primarily use screws and press-fit components to build the robot car. The data lines are designed to prevent incorrect connections.

For detailed visual guidance, refer to the 'Micro:bit Robot Initial Tutorial Video' provided by Yahboom. This video covers the unboxing, assembly, and initial programming steps.

5. Programming Guide

5.1. IR Remote Control Programming

To enable IR remote control, you need to download and flash the appropriate firmware to your Micro:bit board. Visit the official Yahboom website (link provided in the manual) and navigate to the Micro:bit robot repository. Download the 'IR Control.hex' file.

1. Connect your Micro:bit board to your computer using the provided USB data cable.
2. Copy the downloaded 'IR Control.hex' file to the 'MICROBIT' U disk that appears on your computer.
3. Wait for the green progress bar to complete, indicating a successful download.
4. Unplug the data cable and turn on the power switch of the car. The Micro:bit dot matrix will display a pattern, indicating the program is running.
5. Remove the plastic gasket from the IR controller's battery compartment.
6. Aim the transmitting tube of the IR controller at the receiving head on the side of the trolley expansion board to control the car.

5.2. APP Control Programming

For mobile app control, you need to download a different firmware and the control app.

1. Visit the official Yahboom website and download the 'Bluetooth Remote Control.hex' file.
2. Connect your Micro:bit board to your computer via USB and copy the 'Bluetooth Remote Control.hex' file to the 'MICROBIT' U disk.
3. Wait for the green progress bar to complete.
4. Unplug the data cable and turn on the car's power switch. The Micro:bit dot matrix will display an 'S' indicating the program is running.
5. Download the control app: Search for 'Mbit' or 'Yahboom' in the Google Play Store (Android) or Apple App Store (iOS).
6. After installation, open your phone's settings, find the BST-Mbit app, and grant all necessary permissions, especially location and Bluetooth.
7. Open the BST-Mbit app. Move your phone close to the robot car; Bluetooth will connect automatically.
8. Once connected, the Micro:bit dot matrix pattern will change, and you can control the car via the app interface.

6. Operating Instructions

Once programmed, your Yahboom Microbit V2 Smart Robot Car can perform various actions based on the loaded firmware and control method.

6.1. IR Remote Control Operation

Use the directional buttons on the IR remote to move the car forward, backward, left, and right. The remote also has buttons to control the RGB lights and display dot matrix patterns on the Micro:bit.

6.2. APP Control Operation

The mobile app provides a graphical interface for controlling the robot. You can use virtual joysticks or buttons to command movement, change RGB light colors, play music, and activate specific functions like obstacle avoidance or line tracking, depending on the loaded program.

Image: A collage of images demonstrating the robot car's diverse functionalities, such as avoiding obstacles, following lines, and being controlled via a smartphone app.

7. Maintenance

• Keep the robot car and its components clean and dry.
• Store the kit in a cool, dry place away from direct sunlight and extreme temperatures.
• Ensure the lithium battery is charged regularly and handled according to safety guidelines.
• Periodically check all connections and screws to ensure they are secure.

8. Troubleshooting

• Car not responding: Ensure the Micro:bit is properly inserted, the power switch is on, and the battery is charged. Verify that the correct firmware is flashed for your chosen control method (IR or APP).
• IR Remote not working: Check if the plastic gasket has been removed from the remote's battery. Ensure the remote is aimed directly at the IR receiver on the expansion board. Perform this indoors to minimize sunlight interference.
• APP not connecting: Confirm Bluetooth and location permissions are enabled for the BST-Mbit app on your phone. Ensure the 'Bluetooth Remote Control.hex' firmware is loaded onto the Micro:bit.
• Unexpected behavior: Re-flash the firmware to ensure a clean program installation. Check all physical connections for looseness.

9. Specifications

10. Warranty and Support

10.1. Warranty Information

This product comes with a 90 Day Warranty Against Manufacturer Defects. Please retain your proof of purchase for warranty claims.

10.2. Technical Support

For additional tutorials, code, and technical assistance, please visit the official Yahboom website or contact their support team:

• Website: www.yahboom.net/study/Bitbot
• Email: support@yahboom.com