I know a lot of 1st/2nd year EE, and some basics of digital electronics. I have an ardunio, but don't really know any programming. What's an earlier, more basic point to start with ? Should I play around with 1980's EEPROM's ?? Should I try some more 1st year CS lectures? Or is an Arduino a great place to really dive in, I rather know more basics/legacy stuff tho ?