12. case 03 Turn at an angle

12.1. Our Goal

  • To make the Ring:bit Car draw a circle in the clockwise direction.

12.2. Requiered Materials

  • 1 x Ring:bit Car

12.3. Hardware Connect

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


  • Use a rubber band to fix a pencil on the base board of the Ring:bit car.


12.4. Software


12.5. 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 into the on start block.

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

Step 3

  • Snap the set left wheel speed right wheel speed block into the on button A pressed block.

  • Set the left wheel’s speed to 10 and the right to 50.


Step 4

  • Snap the brake block into the on button B pressed block.



Program Link:https://makecode.microbit.org/_YejCA2AJDDVV

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

12.6. Result

  • On button A pressed, the car draws a circle.

  • On button B pressed, stop car.


12.7. Think

  • How can you make your car draw an eight?

12.8. Questions

12.9. More Information