Looks very similar to denshi blocks, surprised I've heard of them but not this. More a precursor to things like them and LittleBits than Arduino Edit: were th

Looks very similar to denshi blocks, surprised I've heard of them but not this. More a precursor to things like them and LittleBits than Arduino Edit: were these only released in German? I guess that'd explain it. Can't find any English language sets for sale