The reset is connected to D4 on my UNO, but the code I got it to light up with doesn't seem to use it. I believe it's written for the 4 pin version (Vcc, GND, SCL, SDA). I haven't soldered any jumpers or anything like that on the OLED, but when I bought it it was advertised as IIC, so I assumed (naively I guess) that is was. As for the source of the code, I just found it in the above linked thread, I was basically just trying anything I came across to see what I could see. Based on the pictures, do I need to solder a jumper? Thanks again.