Using the Microphone

In this section, you will learn to use the sound-sensing capabilities of the micro:bit.

To display the sound level, we first need to add a string representing the value returned by the sensor. To do so, click on the “Basic” drawer in the Toolbox.

Select the show string block.

Place the show string block in the forever block.

Next you need to get the block that reads the sound level. Click on the “Input” drawer of the Toolbox.

Scroll down to the section that has the “micro:bit (V2)” blocks.

Select the sound level block.

Place the sound level block in the forever block.

The micro:bit is now ready to be flashed with code. Press the download button to transfer the code to the micro:bit.