There are of course a few other ways to find some more lines on a Pi and indeed almost any microcontroller, with one of the many types of GPIO expansion chips. This trick is a particularly ...

For both the Raspberry Pi and BeagleBone Black, there’s a lot of GPIO access that happens the way normal Unix systems do – by moving files around. Yes, for most applications you really don’t ...

All GPIO and ODIO cells have NS and EW orientation. All GPIO types are classified based on speed: 25MHz, 75MHz and 150MHz. All GPIO speed variants can operate at different post-driver voltage, which ...