4. Case 02: Line-following Cars

4.1. Purpose

To make a line following car.

../../_images/case-02-01.png

4.3. Materials Required

../../_images/case-02-02.png

Video link: https://youtu.be/J2QKDKnTklw

4.4. Bricks build-up

../../_images/step-case-02-01.png

../../_images/step-case-02-02.png

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../../_images/step-case-02-04.png

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4.5. Installation Mthods of Hardwares

Install the dual-line tracking sensor with the bricks.

../../_images/Wonder-Building-Kit-step-line-following.png

4.6. Hardware Connection

Connect two motors to M1 and M2, the dual line-following sensor to P1 and P2 ports on Wukong breakout board.

../../_images/Wonder-Building-Kit-case-02-06.png

4.7. Software Platform

MakeCode

4.8. Coding

Add extensions

Click “Advanced” in the MakeCode to see more choices.

../../_images/case-01-03.png

Search with Wukong in the dialogue box to download it.

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Result

The car moves along with the maps at a uniform speed, it will keep its speed and directions if it deviates from the black line until it goes back.