Most gate demonstrations live on a screen, where you click through a simulation and watch values change in a window. This project takes the opposite route: the maker turned gate logic into a physical box you can hold, with real switches and lights doing the work. For a school computer science assignment, that feels like a far more memorable way to learn what a truth table actually means.
The maker modeled and printed the whole enclosure personally, in white PLA on a K1C. Honeycomb-style hex vents sit in the bottom and side panels, and the maker calls the pattern very clean. The point-to-point wiring inside and the PCB markings can be seen through those openings, which I think is a lovely touch for a school build.
Operation is simple: a truth table is keyed in with the switches first, then tested with button inputs. A pair of momentary pushbuttons serve as inputs A and B, blue LEDs show each input state, and a green LED shows the output. Four small rockers along the front edge set the table, while the main switch is an illuminated rocker labelled I and O. The maker lists OR as 0111, XOR as 0110 and AND as 0001. Power arrives over USB-C, which supplies steady power but does not charge anything.
One later addition is an LED animation that plays at startup. The rough edge is the lid: it was designed as a snap connection, but the back pins broke off and tape keeps it shut now. With roughly a year passed since the build, that tape reads as a fair working compromise on an otherwise tidy case.