I want to show my kids what you can achieve with software development, and I think dealing with some physical thing that is controlled by your code is incredible fun - you are getting feedback instantly.
I see that there some projects like Sphero, etc.. that already got an API - I think it's great.
Can you advice some other things that are falls into that category? (I'm actually afraid of doing hardware part of it... so I think arduino-based things are too complex -- correct me if I'm wrong)
