This setup features a simple three-switch main body / bench for ease of use and testing , while the real intelligence lies in the compact, modular box. The small box is interchangeable and customizable, allowing you to swap in any compatible component that fits its form factor.

What I’ve created is an EV simulator designed specifically to trick chargers. The small box serves as the simulator core and can be integrated into an automated system using a 6-pin connector. Alternatively, it can be used as a standalone unit for manual testing on the bench. 

Maybe not the best print for you. But it can give many ideas ;)