Hello there,
Sorry for missing this one a while back.
So luckily, the Tiny Arcade has an Arduino processor built-in. The Tiny Arcade uses the SAMD21, which is the same processor used on the Arduino Zero and can be programmed using the TinyScreen library. Without any additional programming, you can play videos on the screen in addition to playing the tiny games by using an SD Card much like our TinyTV and Tiny Video Player kits function.
Unluckily, the pinouts that you can see on the silkscreen are meant for adding external hardware like an I2C sensor so it would not be much use with a different Arduino processor. This older forum post answers the same question -
http://forum.tinycircuits.com/index.php?topic=1678.msg3144#msg3144Let me know what you're trying to do with the screen and maybe I can offer some advice on how to do it!
Thanks,
RĂ©na