Example Code for micro:bit-Line-tracking
Last revision 2026/01/14
This article details how to use micro:bit with Maqueen Plus V2 for line-tracking, offering sample codes and guidance on creating a line-following car using built-in sensors.
Hardware Preparation
- Maqueen Plus V2
- micro:bit V1/V2
- Line-tracking Map (included)
Software Preparation
Wiring Diagram
No additional wiring needed; line-tracking sensors are built-in.
Other Preparation Work
- Complete the Quick Start Guide steps.
- Place the car on the line-tracking map.
Sample Code
Basic Program Link: https://makecode.microbit.org/_KhA1VvMi70rp
Improved Program Link: https://makecode.microbit.org/_WVc5uwLsq9xE
Result
Basic: Car follows the black line using 3 sensors.
Improved: Car uses 5 sensors to return to the line if it deviates.
Additional Information
Ensure the line-tracking sensors are calibrated (see Getting Started section).
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