for next #girlsday on 28.04.22 we are offering a workshop https://www.girls-day.de/@/Show/th-koeln/koeln-muelheim/pianonano-loete-dein-eigenes-mini-keyboard , in which participants can build a small synthesizer based on the attiny85 micro-controller. The workshop was developed by students of the code & context study program (http://coco.study) as part of the courses rapid prototyping and project explore I co-taught with Kathia von Roth @stephiewunder, as guest we had the fantastic hannah perner willson @plusea .