Hi dear Alessandro,
I have just sent you an email. You can follow the steps to try it out. I also shared with you the latest version of the firmware and the discounted price.
If you have any questions about UI design & Programming & Purchasing, please contact me directly : chao@stone-hmi.com / WSAPP +86 137 1405 5682
Have a good day!
Best Regards,
Chao
Stone Tech