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Atividade

Which way now?

Principiante | MakeCode, Python | Acelerómetro, Ecrã LED | Aleatoriedade, Ferramentas de desempenho, Seleção, Variáveis

Passo 1: Faz tu mesmo

O que é isto?

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 vais fazer e como programar:

Introdução

Guia do código

Como é que 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.

Do que é que precisas

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

Passo 2: Cria o teu código

Passo 3: Melhora-o

  • 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.