The basis of pedagogy were built before the digital era. So it is very little experience in how to transfer knowledge and abilities today.
Even so, the stress on transferring knowledge, also as a result of the Skinner's approach (questionable successful) , in detriment of understanding and self-learning w persists.
In my opinion, what an educator shall do today is to go back to theory and start develop a method adapted to digital era and lower age of understanding.
In my personal view, the Vygotsky theory of proximal development, as well as the cutting-the-edge research in theory of knowledge - based on quantum representation are the most promising and I base my work on them.
Although it sounds very esoteric, the practical approach is simple.
In our case, the first step is to abandon the idea of "learning by playing". This is a non-sense: any play is teaching something. If you go wit the "learning by playing" we end up by simply "playing" but in a stresfull and rigid environment.
The second step is to make things visible. Arduino is not visible.
The third step is to add-on pieces of flexible environment.