I have got my ordered system. I can see that both the master and each module it works very well. Each module react right to its software application. Very nice!
All the bad is now (for me) that I can not bind together the each module software application to make it act as a system...
I may "dive" myself now in the programming ocean...
As a suggestion, I think it could be very handy (and it may increase the use of this modular system by those who are not so used with programming), if any particular software application (written as example) for each modules, it may have a software connection interface to make possible to connect together the software applications. I know that such it is possible, but it may not be very easy task for a programmer... Anyway, a suggestion for the producer of the this nice system...
Another suggestion is a kind of very explicit and simple tutorial (what software it may be installed and used to start with programming work), by explicit steps, for the novice ones to get start into this programming world.