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Atividade

Which way now?

Iniciante | MakeCode, Python | Acelerômetro, Visor LED | Ferramentas de desempenho, Randomização, Seleção, Variáveis

Primeiro passo: o projeto

O que é?

Shake your micro:bit and be given a random direction to walk. You will learn about variables, and using random numbers, selection and comparison logic blocks.

Estes dois vídeos mostram o que você fará e como desenvolver o código:

Introdução

Código

Como funciona:

  • The program uses a variable called “direction” to store a random number.
  • Variables store numbers or values that can change in a computer program.
  • Shake the micro:bit to set “direction” to a random number between one and three.
  • The program then uses selection and comparison logic blocks to test the value of the variable.
  • If “direction” is equal to 1, then an arrow pointing north shows on the micro:bit’s LED display. If “direction” is equal to 2, then the arrow points east. Otherwise, the arrow points west.
  • To make the battery last longer, the program pauses for half a second after the arrow appears then clears the screen.

Itens necessários:

  • Um micro:bit (ou simulador MakeCode);
  • Editor MakeCode;
  • battery pack (optional but recommended)
  • our set-up guide may be useful

Segundo passo: é hora de programar

Terceiro passo: vamos deixar o código ainda melhor

  • Add more directions.
  • Use buttons to show icons for skipping, running, and jumping.
  • Combine with the touch stopwatch program to make a motivational tool to use in sports lessons.

Thanks to David Hay, an educator in Alberta, Canada for sharing this brilliant project idea with us.