Piattino features two trigger inputs. Each of them controls an envelope with release parameter.
The system is meant to create closed and open hi-hats, except that the module doesn't really sound like a hi-hat. Often the results are more reminiscent of snares or rim-shots.

Frequency and resonance are available as sound shaping parameters. This shows that Piattino is actually a filter with a noise generator at the input.
By sending audio material to the trigger connectors, you can use the module as a VCF with extremely trashy, weirdly resonating sound.