BitCar - Autonomous Line Following & Obstacle Avoiding Car for micro:bit


BitCar is a micro:bit based do-it-yourself robot designed for STEM education. It’s easy to assemble, easy to code and fun to play with. The car uses two high quality metal gear motors to drive the wheels. The car's main electronics board integrates a buzzer for music or audio signals, 2 line follow sensors for tracking lines, and the 4 addressable LEDs on the bottom can be used as indicators, highlights or simply for cool decorations. There are also Grove connectors for add-ons like ultrasonic sensor, temperature sensor, light sensor, speech recognizer or other displays. All features of BitCar can be easily controlled with Microsoft MakeCode editor.

BitCar is one of TinkerGen’s most popular micro:bit project kits.  

The car constructed from the kit not only includes functions like line following, obstacle avoidance and remote control, but can also do a wheelie with the help of inertia! Show me another DIY car that can do this!

The car is composed of one chassis, two metal gear motors, two wheels and one acrylic cover. These components assemble to make a fantastic micro:bit car.

The chassis has a collection of useful modules built in, such as the buzzer, line follower and programmable RGB LEDs. To encourage further exploration, two spare connection ports are included on the underside of the chassis so kids can connect additional Grove modules like a proximity sensor, temperature sensor or speech recognition module to the car.

If you haven't heard of Grove before, Grove is a Seeed series which you can read more about here.

If you want to implement a remote controlled car, we recommend that you also buy the BitPlayer. BitPlayer is the game controller from our micro:bit series which incorporates a 2-axis joystick and 6 programmable buttons, in the shape of a typical game controller, empowering kids to achieve an awesome project design experience.

If you don't have a micro:bit, click here to buy one.

Read further for more details about the product as well as the Additional Resources tab just below the scrollable images, and if you still can’t find the information you need, contact us via our social media which can be found at the bottom of the page.

Key Features

BitCar Autonomous or Remote Controlled BitCar Obstacle Avoidance BitCar Line Following BitCar Wheelie Upside Down Mode Bitcar Customisable DIY
Remote Controllable or Autonomous Obstacle Avoidance Line Following Wheelie Mode DIY assembly + easily customisable

  • Creative & Functional Design

Inertia carries the car to perform a wheelie as it drives!

  • Education Focus

This product helps kids understand the basics of open-source electronics and develop skills in programming. Kids' creative thinking and hands-on skills are nurtured in their electronics learning. Not only can kids build knowledge of the modules and graphical programming, but also they can learn how to create their own DIY projects.

Bitcar Customisable DIY

DIY Project that looks COOL & Easily Customisable

The cover of the car has a sleek streamline appearance with a dark matte finish.

The flat surfaces make it easy to customize with stickers or tape, we will even provide cad files so you can laser cut your own acrylic components.

Extension Ports

Extension capabilities to achieve Advanced Functions

Modules like gear motors, buzzer, line follower and RGB LEDs are included in the kit to bring kids more fun and joy. But for advanced users, two extra grove ports are included (on the underside of the car) so you can add as per project requirements, includes one I2C connection and P1 & P2. E.g. Add a LED headlights and automate them with a light sensor.


Microsoft MakeCode Compatible - A Powerful Programming Platform

MakeCode is a widely-used graphical programming software which allows you to program the micro:bit. You can easily use it through a web browser.


Educational Course Materials

We provide free BitCar-related courses for schools and families. You can get started with BitCar no matter whether you are at class or home.

  • This kit is suitable for: 

Maker teachers / DIY hobbyists / high school students / micro:bit users/ homeschooling educators 

  • Project Examples: 

  • What's in the Box

What's in the BitCar Box

What's in the Box 

1x Chassis Battery Holder Universal Wheel (front) Universal Wheel (back) Coupling Nut Screw Driver Acrylic Back Piece Ultrasonic Sensor
2x 3M Stickers Acrylic Side plates  Wheels
6x M3x6mm Screws


Technical Specifications:

Technical Specifications

Power Supply :3 AAA batteries
Working Voltage: 5V
Working Current: 1.5A (Max)
Built in Speaker
2 Metal Gear Motors
4 Addressable RGB LEDs
2 Spare Grove Connection ports (one I2C)


Other Details:

Other Details

Package Dimensions: 170 (L) * 90 (W) * 60 (H) (mm)
Weight 160 (g)
Age for Use: 8+

Contact Us:


Email (general enquiries):

Email (Technical Support):


Twitter: tag us @tinkergen_

Instagram: tag us @tinkergen_

YouTube: Follow us for the latest project videos!


More Information
Product Name in Widget BitCar
Length 10cm
Width 9cm
Height 6cm
Weight 0.16kgs
Battery Excluded