Hello, I have an unusual order for me, the client wishes to write an application that allows you to browse a product catalogue, when someone expresses interest after clicking on it, a light should appear above the product. While the software side is not a problem for me, the hardware is. There is an infrastructure that works today. I am interested in the contact details of companies that would undertake to make a module that allows these funny lights to light up and issue me some kind of communication protocol. The indicated use of the current infrastructure I am interested in replacing the module that works today and providing the protocol. Thank you in advance for your help.
