# case 03 Draw a Circel ## Our Goal --- In this study case, you are going to learn how to make your ring:bit car draw a circle. ## Material Needed --- - 1 x Ring:bit Car Kit - 1 x micro:bit - 3 x AA Batteries - 1 x Pen ## Assembly --- Please read our pamphlet within the package for the process of ring:bit car assembly. You have to prepare micro:bit and AA batteries by your own. Once you have completed assembling your car, bind the pen to the tail of your car using a rubber band. ## Software --- [Microsoft MakeCode](https://makecode.microbit.org) ## Programming --- For the whole program, please refer to the link here: [https://makecode.microbit.org/_VUcg0t2yKEfW](https://makecode.microbit.org/_VUcg0t2yKEfW) Or, you can download it directly by the website below.
## Think --- How to make your ring:bit car run a square path?