# Case 03: Round Fly ## Introduction --- - Program to make the drone fly to a preset place and then get back. ## Products Link --- - 1 x [Drone:bit Kit](https://www.elecfreaks.com/micro-bit-drone-bit-kit-without-micro-bit-board.html) ## Picture --- ![](./images/Drone-bit-02.png) ## Software Programming --- Click "Advanced" in the MakeCode drawer to see more choices. ![](./images/Drone-bit-case-01-01.png) For programming, we need to add a package: click “Extensions” at the bottom of the MakeCode drawer and search with “https://github.com/elecfreaks/pxt-Dronebit” in the dialogue box to download it. ![](./images/Drone-bit-case-01-02.png) ***Notice:*** If you met a tip indicating that some codebases would be deleted due to incompatibility, you may continue as the tips say or create a new project in the menu. ## Program --- ![](./images/Drone-bit-case-03-03.png) ***Notice:*** It is suggested to pause for 2 seconds or longer after triggering the take-off command to make sure the operator run away from the drones in case of any hurting accidents. Link: [https://makecode.microbit.org/_7zU0qEMPVcqT](https://makecode.microbit.org/_7zU0qEMPVcqT) You can also download it directly:
## Result --- - After taking off, it flys forward for 100cm and lands to the ground, then it starts flying back in 100cm by rotating 180 degress, then it lands to the ground.