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 ... As for UARTs, the Raspberry Pi’s one-and-a-half UART interface has ...

Yes there are multiple variants of the System on Chip used in the newly released Raspberry Pi Pico 2. The RP2350A has support for only 30 GPIO pins while ... as a couple of UART, two I2C and ...