No shame in that! For the next revision, [Andrew] added buttons and decided to make it into a Raspberry Pi HAT. This HAT is essentially a simple display with a basic input device, and a beauty at ...

There are hundreds of Raspberry Pi HATs (hardware attached on top) on the market that offer everything from GPS to cellular connectivity to flashing RGB lights or even sensors. That makes the ...

A Raspberry Pi 3B+, AIS Receiver Hat, USB GPS dongle and a makes up the core of the system. The entire setup cost about $350. The Pi runs OpenCPN, an open source chart plotter and navigation ...