Trying a new approach with software for the PiGRRL 2: users start with the latest-and-greatest RetroPie (or any other recent Raspbian Jessie-derived OS) and download scripts we provide to enable the PiTFT display and controller buttons.
This should keep the project more current with changes to RetroPie and the Raspberry Pi hardware (you can easily build a PiGRRL 2 using a Pi 3 now, no cleaning up the software after the fact). It’s not quite as simple as a ready-made SD card…it requires a little Pi experience and command-line shenanigans…but it’s an easy middle ground vs. manually editing a bunch of system files. Hopefully this iteration hits the DIY sweet spot.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.