[Ken Olsen] needed a bunch of analog inputs for his model railroad project. He wanted to use the Raspberry Pi board, but alas there are no analog inputs available on the GPIO header. But there is SPI.

The Raspberry Pi is a very capable device whose hardware has been pushed to the limit in all sorts of interesting ways. But even the most ingenious of experimenters have to agree on one point; it ...

Makers, developers and hobbyists that enjoy building projects using the awesome Raspberry Pi mini PC may be interested in a new digital and analog expansion board called the PIIO. The PIIO has been ...

Raspberry Pi enthusiasts may be interested in the new stackable Raspberry Pi HAT capable of adding up to 128 oto-isolated iputs and more. p to eight cards can be stacked on top of one Raspberry Pi ...