The idea was to have an analog eurorack kick module triggering the strobe light so their rhythm pattern matches on the go during the live performance. Firstly I was researching how to achieve such an effect digitally but in the end I have chosen an analog approach which appeared to be the most simple, straight forward and cheap.

I have used the relay to trigger the light with the gate signal. The most of relays require voltage at least 5V in order to open circuit but I found relay which opens with 3V. Trigger is set as ‘NO’ (normally open) so it switches only temporarily in the similar way like pressing a button.