Rotary Poti Bricklet


The Rotary Poti Bricklet is discontinued. We are selling our remaining stock. The Rotary Poti Bricklet 2.0 is the recommended replacement.


  • 300° rotary potentiometer
  • Outputs position from -150° to 150° in 1° steps


The Rotary Poti Bricklet is equipped with a 1-turn rotary potentiometer. It can be connected to a Brick, with which the position of the slider can be read out. With configurable events it is possible to react on changing positions without polling.

You can use this Bricklet for speed, volume control or similar purposes.

Technical Specifications

Property Value
Rotary Potentiometer 1-turn, 300°
Current Consumption 1mA
Position -150° to 150° (left to right) in 1° steps
Dimensions (W x D x H) 30 x 25 x 23mm (1.18 x 0.98 x 0.9")*
Weight 5g*

* without knob


Test your Rotary Poti Bricklet

To test a Rotary Poti 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 Rotary Poti Bricklet to a Brick with a Bricklet Cable (see picture below).

Rotary Poti Bricklet connected to Master Brick

If you connect the Brick to the PC over USB, you should see a new tab named "Rotary Poti Bricklet" in the Brick Viewer after a moment. Select this tab. If everything went as expected the Brick Viewer should look as depicted below.

Rotary Poti Bricklet in Brick Viewer

Turn the potentiometer. You should be able to create a similar graph by turning the potentiometer from left left to right and back to left.

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


A laser-cut case for the Rotary Poti Bricklet is available.

Case for Rotary Poti Bricklet

The assembly is easiest if you follow the following steps:

  • Screw spacers to the Bricklet,
  • screw bottom plate to bottom spacers,
  • build up side plates,
  • plug side plates into bottom plate and
  • screw top plate to top spacers.

Below you can see an exploded assembly drawing of the Rotary Poti Bricklet case:

Exploded assembly drawing for Rotary Poti 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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