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Case 07: AI Lens Line Follower Car

Purpose​

Build a line following car with the bricks and the AI lens.

ELECFREAKS Smart AI Lens Kit

ELECFREAKS Nezha Breakout Board

ELECFREAKS High-Speed Building Blocks Motor

Materials Required and Connection Diagram​

Connect the AI Lens to the IIC port and the two motors on M1,M2 ports on the Nezha expansion board as the picture shows.

Build a car with the bricks below.

MakeCode Programming​

Step 1​

Click "Advanced" in the MakeCode drawer to see more choices.

We need to add a package for programming. Click "Extensions" in the bottom of the drawer and search with "PlanetX" in the dialogue box to download it.

Note: If you met a tip indicating that the codebase will be deleted due to incompatibility, you may continue as the tips say or build a new project in the menu.

Step 2​

Code as below:​

Link：https://makecode.microbit.org/_D3objUWFo5YA

You may also download it directly below:

Result​

The car moves along with the line with the guidance of the AI lens.