New design for 2018. Doubles as a breakout for newer Arduino compatible boards like the nano/ micro, and a bunch of others like it (Teensy and Trinket series...). Fits anything with parallel headers spaced 0.6", 0.7" and 0.8" apart. Retains the same RPi GPIO breakout capabilities. 30% smaller footprint, smaller screw terminals (3.5mm). Now with rounded corners!
Because why not? There's a RPi shield for everything but buttons! So I decided to make one. Nothing fancy here- no serial encoding, no multiplexing. Just plug-and-play buttons mapped 1-to-1 to the Porta Pi Arcade controls.
I am working on am improved version.