Today we’re measuring how loud the environment is.
We are going to be using the Micro:bit's built-in microphone. It doesn’t record sound like a voice memo — instead, it listens for how loud things are around it.
This is called sound level — and it gives us a number between 0 (very quiet) and 255 (very loud).
We’re going to create a noise logger using our Micro:bits.
It will listen to the environment and log the sound level every second.
At the end, we’ll be able to see how noisy things were — and when the loudest moments happened.
You could even use it to check:
Is the classroom louder before or after break?
Which area of the school is the noisiest?
Drag out the block:
🧱 set column (sound)
Place it inside the on start block
This will make it easier to read your data.
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