Fine with possibly lower FPS? I2C is a valid choice, then. You need pullups – and you cannot use GPIO-internal pullups like you can do with buttons, they are too high of a value as a rule.

I2C is a two-wire, bidirectional bus protocol that enables effective communication between one master (or multiple masters) and one or more slave devices. It is a straightforward, half-Duplex, ...

six I2C controllers, and six UARTs – all on its 40-pin header. You can’t make use of all of these at once, but with up to four different connections wired to a single pin you can carve out a ...