This write-up doesn't explain how to program the device, but this page does http://docs.primotoys.com/docs/cubetto-manual.html#introduction http://docs.primo

This write-up doesn't explain how to program the device, but this page does http://docs.primotoys.com/docs/cubetto-manual.html#introduction http://docs.primotoys.com/docs/cubetto-manual.html#introduct... Basically, you program a sequence of commands FORWARD, LEFT, RIGHT. There is also a special command FUNCTION that executes a user-specified sequence of up to four commands. Does it allow the FUNCTION command within the definition of the function? If it does, there's a lot of non-trivial stuff with recursion to do For instance, a stack overflow commands = [FUNCTION] function = [FUNCTION, FUNCTION]