You get GPIO and any other needed interfaces on any PC, by adding a $10 microcon...

		adrian_b 42 days ago \| parent \| context \| favorite \| on: DRAM pricing is killing the hobbyist SBC market You get GPIO and any other needed interfaces on any PC, by adding a $10 microcontroller on a USB port, e.g. one of the STM Nucleo boards. If you use a PC or mini-PC that you already have, that is much cheaper than using a Raspberry Pi or similar.