This Adafruit Arcade Bonnet is designed to make small emulator projects a little easier to build. Here are the board's features:
It is the same size as a Pi Zero, so for really compact builds, this is super small. You can use it with a Pi 2, 3, B+ or any 2x20 connector Pi.
It has JST sockets so you can plug in six arcade buttons easily.
Header breakouts for use with both clicky-type switched joysticks and...
Header breakout and converter for using analog-type joysticks or thumbsticks with potentiometers inside
A 3W speaker output that can drive 4-8 ohm speakers for when using with a TV output, HDMI display or PiTFT.
Switches are all managed with an I2C-GPIO converter with interrupt out. The converter is very fast and frees up all the pins so you can use this Bonnet with a PiTFT or any other accessory/device that uses a lot of pins!
curl -O https://raw.githubusercontent.com/adafruit/Raspberry-Pi-Installer-Scripts/master/arcade-bonnet.sh sudo bash arcade-bonnet.sh curl -sS https://raw.githubusercontent.com/adafruit/Raspberry-Pi-Installer-Scripts/master/i2samp.sh | bash