5. Case 03: Line Tracking

5.1. Purpose

Programme to set the TPBot driving along with the black line.

5.2. Material

1 x TPBot

../../_images/TPBot_tianpeng_case_01_01.png

5.3. Software

MicroSoftmakecode

5.4. Programming

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

../../_images/TPBot_tianpeng_case_01_02.png

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

../../_images/TPBot_tianpeng_case_01_03.png

Sample

Judge the status of the line-tracking sensors: if the black was detected on the left, set the speed of the left wheel in 0 and the right in 40; if the black was detected on the right, set the speed of the left wheel in 40 and the right in 0.

../../_images/TPBot_tianpeng_case_03_04.png

Link

Link: https://makecode.microbit.org/_4WML7wLL5DDJ
You may also download it directly below:

Conclusion

TPBot drives along with the balck line.

5.5. Exploration

5.6. FAQ

Q: The car does not work with the code in the wiki.
A: It should be the batteries that are lack of power, please try to fix it by adding the value of the speed in the code.