Sound Intensity Bricklet


The Sound Intensity Bricklet is discontinued. We are selling our remaining stock. The Sound Pressure Level Bricklet is the recommended replacement.


  • Measures sound intensity
  • 12bit resolution
  • Usable as clapping switch, alarm system sensor, etc.


The Sound Intensity Bricklet is equipped with a microphone capsule and can be used to measure loudness by Bricks. The returned value corresponds to the upper envelop of the signal of the microphone capsule.

It is possible to configure events that are triggered if a specified threshold of loudness is exceeded.

Technical Specifications

Property Value
Current Consumption 1mA
Resolution 12bit
Dimensions (W x D x H) 25 x 30 x 9mm (0.98 x 1.18 x 0.35")
Weight 4g


Test your Sound Intensity Bricklet

To test a Sound Intensity Bricklet you need to have Brick Daemon and Brick Viewer installed. Brick Daemon acts as a proxy between the USB interface of the Bricks and the API bindings. Brick Viewer connects to Brick Daemon. It helps to figure out basic information about the connected Bricks and Bricklets and allows to test them.

Connect the Sound Intensity Bricklet to a Brick with a Bricklet Cable.

If you connect the Brick to the PC over USB, you should see a new tab named "Sound Intensity Bricklet" in the Brick Viewer after a moment. Select this tab. If everything went as expected you can now see the changing sound intensity.

Sound Intensity Bricklet in Brick Viewer

After this test you can go on with writing your own application. See the Programming Interface section for the API of the Sound Intensity Bricklet and examples in different programming languages.


A laser-cut case for the Sound Intensity Bricklet is available.

Case for Sound Intensity Bricklet

The assembly is easiest if you follow the following steps:

  • Screw Bricklet to top plate with spacers at the bottom and long screws from the top,
  • build up side plates,
  • plug side plates into top plate and
  • screw bottom plate to bottom spacers.

Below you can see an exploded assembly drawing of the Temperature IR Bricklet case:

Exploded assembly drawing for Sound Intensity Bricklet

Hint: There is a protective film on both sides of the plates, you have to remove it before assembly.

Programming Interface

See Programming Interface for a detailed description.

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