14. case 05 Crazy dance

14.1. Our Goal

  • To make the Ring:bit car to dance in free style.

14.2. Requiered Materials

  • 1 x Ring:bit Car

14.3. Hardware Connect

  • Connect the left wheel servo to P1 of the Ring:bit expansion board and the right wheel servo to P2. ../../_images/jBVHea8.png

14.4. Software


14.5. Coding

Step 1

  • Click on “Advanced” in the MakeCode Drawer to see more code sections.


  • Search for “ringbitcar” and click on the ring:bit car package to add it to your project. (As below picture)


Note:If you get a warning telling you some packages will be removed because of incompatibility issues, either follow the prompts or create a new project in the Project file menu.

Step 2

  • Snap the block set left wheel at pin P1 right wheel at pin P2 to the On start block.

  • The port number is based on the actual servo connection port. ../../_images/igG5TVD1.png

Step 3

  • Snap blocks into forever block.

  • Set an varieble to left and an variable to right.

  • Generate a random number and assinment to the left and the right.


Step 4

  • Set the left wheel speed to the variable left abd the right wheel speed to the variable right.

  • Pause for one second.



Program Link:https://makecode.microbit.org/_WrC1kWhizc6E

If you don’t want to type these code by yourself, you can directly download the whole program from the link below:


14.6. Result

  • The car runs at different speed.


14.7. Think

  • How do you ensure the car moves at a slower speed constantly?

14.8. Questions

14.9. More Information