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Kompas - DIY

Bastl Instruments

Probability trigger generator

...this tool is the outcome of the environment we are in and is inspired by a non-linear approach to music and life - don't build up any expectations, choose your direction and discover new paths...

See the product page for instructions/downloadable content.

- More details in the Description below. -

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In stock

Kompas is a three-coordinate probabilistic pattern navigator. Each coordinate has a unique travelling pace and a dedicated trigger output. The amount of probability can be adjusted manually or by external voltages. Once a coordinate has been adjusted, a new pattern is generated and looped until the next change of direction.

Unlike common probability operation, instead of filtering a pre-determined sequence, Kompas uses probability to generate new looping patterns based on the direction you choose.


  • global clock and reset input
  • 3 x 32 step pattern generators with travelling algorithms

  • 3 CV inputs for coordinate modulation

  • 3 trigger outputs

  • 2/5/10ms selectable trigger length (via boot settings)

  • DIY and hacker friendly Arduino programmable hardware

  • open-source schematics and code - click me

  • this built version does not include a printed fanzine with navigation topics which is only part of the DIY version.

  • available also as a DIY soldering and coding workshop - click me


  • 5 HP

  • PTC fuse and diode protected 10-pin power connector

  • 35mm deep (skiff friendly)

  • 5ms default trigger length

  • 5V trigger outputs

  • 0-5V protected CV inputs

  • 60Hz maximum clock rate (3600 BPM :O)

  • 6-pin FTDi connector;

  • power consumption +12V: < 30mA 


See the product page for instructions/downloadable content.


Data sheet


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