Do you recognize this synth with Arduino micro chip, made at dbs diy course

Hello,

So I was on this one day make a diy synth course around three years ago at Dbsmusic Berlin and made this little thing. Does anyone recognize it? As I don't remember the name of the guy who was leading the course and the computer that had the codes for it is broken I was thinking of what could i use it for. I know its meant to be part of modular basically and thats not even what im doing atm, but i could some day, he. I remember there was atleast a noise machine and a clock and a bunch of other things you could code it to be and the "teacher" who had designed this was maybe FrenchSwiss. Hehe I know this is a bit far out there, but any info would be nice. Reaper as DAW doesn't accept outside clock so I guess that's not for the moment.. I could sync it with PO-12, Monologue and Volca Kick atm in my mini system. But anyways if you know the name of the guy or where to find the codes, and what is what it would be really helpful!

Cheers!

Other side with the chip:

Hmm seems like Arduino Nano actually..

that's a micro. But the other side is interesting... What are those IC's? 555???