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case 03 Turn at an angle

Our Goal​

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

Requiered Materials​

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.

Software​

makecode

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.

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​

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:

Result​

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

Think​

  • How can you make your car draw an eight?

Questions​

More Information​