|My LED Pico Projector|
mini projector/screen combo and using the combination to play games on a HUGE screen. They're even larger than they were when playing in the arcade! Sound comes out of the tablet or you can use a Bluetooth speaker for more fidelity. If your tablet has a hard-wired port for sound (like a mini headphone jack) you can simply plug it into a powered speaker system (or even your RV Stereo system).
How do you control all the onscreen action? You could use the keyboard of your device (if it has one) or buy an add-on keyboard. OR...you can buy a Bluetooth controller. These come in a myriad of flavors and colors. From duplicates of console game controllers down to micro and mini ones that are really inexpensive ($4), feature rechargeable batteries (they use a micro-USB cord to charge) and work great for more than games. I use mine to click through slides during power-point presentations and control music and videos on the fly. You can configure the buttons to do just about anything you like on your device.
Retroarch is a bit finicky to set up and use, but once it works on your system...look out! You have access to a massive amount of gaming entertainment on board your RV. Rainy days in the RV will never be the same again!
Be Seeing You...Down The Road,
Rich "The Wanderman"
***UPDATE*** If you are having problems with setting up Retroarch on your android device. I know it too me a LONG time to get it working right, you could always install individual emulators for each game type. For example,,,,MAME for old coin-op games. A quick search on the play store reveals lots of choices for almost every video game device out there, past and present. From Atari 2600's all the way to Playstations! As always....YMMV!