Sound Sensor


This is a sound sensor that measures the loudness of sound in the environment and returns an analog value.

The range of the return value is 0-1023, a higher value means the sound is louder.


  • Voltage: 3V~5V

  • Type: Analog Module

  • Interface: 3 Pin Dupont Cable

Wiring Diagram

This is an analog module, it can only use P0-P2.(Remove the buzzer jumper when P0 is in use.)

Connect the sensor to Robotbit’s pin and 3V pin.


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This module can be used with Microbit and Meowbit.

Reading the loudness





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Load the Robotbit extension


Reading the loudness


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Reading the loudness