Before the Raspberry Pi came out, one cheap and easy way to get GPIO on a computer with a real operating system was to manipulate the pins on an old parallel port, then most commonly used for printers ...
A popular project for a Raspberry Pi single-board computer is to create a wireless print server, one of the many unexpected use cases of an old Raspberry Pi. This is a simple hack to turn a ...
For such an inexpensive, tiny little SBC, it certainly gives me a lot of fun and assistance in a number of projects ...