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ring_bit_car_case_06.md

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case 06 Turns over Detection

Our Goal

  • Make the car to stop when it turns over.

Requiered Materials

  • 1 x Ring:bit Car

Hardware Connect

  • Connect the left wheel servo to P1 of the Ring:bit expansion board and the right wheel servo to P2.(As below picture)

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 on start block from the Basic. Set RainbowLED with 24 leds in RGB format for colorful light and show rainbow from 1 to 360. Then, initialize the P1 port to left wheel and the P2 port to right wheel.

Step 3

  • Set a variable to state for controlling car's running. Then set state variable unber the logo up block to true and the other to false.

Step 4

  • Set the rainblw led to colorful lights under the forever loop in gradual change. Use the variable state to control car's running.

Program

Program Link：https://makecode.microbit.org/_WzRDYhTj4UgH

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

<iframe style="position:absolute;top:0;left:0;width:100%;height:100%;" src="https://makecode.microbit.org/#pub:_WzRDYhTj4UgH" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin"></iframe>

Result

  • The car runs normally，when it turns over, it stops.

Think

  • How can you design more funny project using other kits?

Questions

More Information