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Actividad

Sound meter

Principiante | MakeCode, Python | Micrófono, Pantalla LED | Entrada/salida, Manejo de datos

Paso 1: Hazlo

¿Qué es?

Measure how noisy it is around you using the new micro:bit's microphone sensor and a simple bar chart display.

Introducción

Guía de programación

Qué aprenderás

  • How to use the new micro:bit's built-in microphone input sensor to measure how loud sounds are around you
  • How to display numerical data from input sensors graphically on the LED display output

Cómo funciona

  • The new micro:bit's microphone measures sound levels in numbers between 0 and 255. 0 is the quietest and 255 is the loudest sound measurement it can make.
  • The code uses a forever loop to keep the microphone measuring sound levels and plotting a bar graph on the LED display.
  • The louder the sounds measured, the higher the bar graph gets.

Qué necesitas

  • new micro:bit with sound (or MakeCode simulator)
  • Editor de MakeCode o de Python
  • pilas (opcionales)

Paso 2: Prográmalo

Paso 3: Mejóralo

  • Create your own ways of displaying how loud a sound is, for example showing different emojis depending on how loud it is
  • Make a visual noise alarm that only flashes when the sound goes over a certain level - you could use this to help keep your classroom peaceful