Seeed Studio
BITCAR - Autonomous Line Following Obstacle Avoiding Car for micro:bit
The BitCar is a micro:bit-powered robot car kit featuring autonomous line following, ultrasonic obstacle avoidance, and remote control capabilities. Built ar...
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The BitCar is a micro:bit-powered robot car kit featuring autonomous line following, ultrasonic obstacle avoidance, and remote control capabilities. Built around a sturdy chassis with two metal gear motors, the car includes built-in modules for buzzer, line follower, and four addressable RGB LEDs — ready to program straight out of the box.
Two spare Grove connection ports on the underside (one I²C, plus P1 and P2) allow advanced users to add sensors and modules for extended functionality. Program the car using Microsoft MakeCode's drag-and-drop block editor or text-based JavaScript. A micro:bit board is required but not included.
Key Features
- Line Following – Built-in line follower sensor for autonomous path tracking
- Obstacle Avoidance – Ultrasonic sensor detects and navigates around obstacles
- Remote Control – Wireless control via a second micro:bit or compatible controller
- Built-In Buzzer – Programmable audio feedback and sound effects
- 4 Addressable RGB LEDs – Individually controllable colour lighting
- 2 Grove Expansion Ports – Add sensors and modules for advanced projects
- Customisable Design – Flat acrylic surfaces for stickers, tape, or laser-cut modifications
Specifications
- Power Supply – 3× AAA batteries (not included)
- Working Voltage – 5 V
- Working Current – 1.5 A max
- Motors – 2× metal gear motors
- LEDs – 4× addressable RGB
- Expansion – 2× Grove ports (1× I²C, 1× P1/P2)
- Package Dimensions – 170 × 90 × 60 mm
- Weight – 100 g
- Recommended Age – 8+
Ideal For
- Learning robotics and programming with micro:bit
- Classroom STEAM education
- Homeschool coding projects
- DIY hobbyists and makers
Package Contents
- 1× Chassis with built-in electronics
- 1× Acrylic back piece
- 2× Acrylic side plates
- 2× Wheels
- 1× Universal wheel (front)
- 1× Universal wheel (rear)
- 1× Ultrasonic sensor
- 1× Battery holder
- 1× Coupling nut
- 1× Screwdriver
- 6× M3×6 mm screws
- 2× 3M adhesive stickers
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- Grove
- Grove is a standardised 4-pin plug-in connector system for sensors and modules that avoids soldering and jumper wires, with different cable types carrying I2C, UART, analogue or digital signals. When a product is Grove-compatible it can be quicker to connect supported modules, provided the connector type, signal and voltage all match.
- RGB
- Short for red, green and blue, the three primary colours of light that are mixed in varying amounts to make a wide range of colours. In electronics RGB can refer to an LED or pixel that blends these three colours, or to a colour signal or interface that carries separate red, green and blue channels.
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