10. case 01 Full speed ahead#

10.1. Our Goal#

  • To make the Ring:bit Car to go ahead and reverse.

10.2. Requiered Materials#

10.3. Hardware Connect#

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

../../_images/jBVHea8.png

10.4. Software#

makecode

10.5. Coding#

Step 1#

  • Click on “Advanced” in the MakeCode Drawer to see more code sections.

../../_images/2qCyzQ71.png

  • Search for “ringbitcar” and click on the ring:bit car package to add it to your project. (As below picture)

../../_images/1Wq2Mov1.jpg

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 go straight at full speed into the On start block.

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

Step 3#

  • Snap the go straight at full speed block into the on button A pressed block.

../../_images/Wyo2R9B.png

Step 4#

  • Snap the reverse at full speed block into the on button B pressed block.

../../_images/jHFkpm1.png

Program#

Program Link:https://makecode.microbit.org/_5md9ofDyRigh

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

10.6. Completed!#

  • When button A is pressed, the car will go straight at full speed.

  • When button B is pressed, the car will reverse at full speed. ../../_images/wwV0YDe.jpg

10.7. Think#

How can you make your car to stop when button A is pressed ?

10.8. Questions#

10.9. More Information#