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Case 02: Speed Up Gradually

Purpose​

  • In case 01, we can find the Cutebot moves too fast to go steadily(the universal wheel goes off the ground) at the beginning.
  • We will learn to gradually speed up the car for a steady move at the beginning in this case.

Materials​

Software Platform​

MicroSoft makecode

Programming​

Step 1​

  • Click the "Advanced" to see more choices in the MakeCode drawer.

  • A codebase is required for Cutebot programming, click “Add Package” at the bottom of the drawer, search Cutebot in the dialogue box and download it.

Note: If you met a tip indicating incompatibility of the codebase, you can continue with the tips or build a new project there.

Step 2​

  • Choose "show icon" in the On startbrick.
  • Set the speed variable to 0 which means the on start speed is 0.

Step 3​

  • Drag setting speed bricks for left and right wheel and set the value as speed in "forever" brick, then add one to speed.
  • If speed is 100 which is the maximum speed, set speed to 0 and restart it.

Programming​

Links: https://makecode.microbit.org/_Au3Ji6KF0H6E

You can also download it directly below:

Result​

  • The Cutebot speeds up gradually and the universal wheel will not go off the ground due to the high speed.

Exploration​

  • How to program to make the car speed up gradually and then speed down gradually?

FAQ​

Relevant Files​