We’re talking to Stephan Noller, a German internet-entrepreneur and one of the key persons of the Calliope mini founding team. The Calliope mini is an educational microcontroller board that can easily be programmed by kids via the web-based editors. The Calliope mini is a single board computer that plugs into a computer via USB and can then be programmed via some web-based and mostly block-based editors. It is originally based on the BBC micro:bit that you might have heard of but augment...