matt_funder27:
I want to use a micro controller that is under $3 for my project. Eventually, I would like to just use the Attiny85 alone and not on the digispark. I just Received my Uno, so I can test the screen and I2C.
If you want a minimal system, the Pro Mini will cost you less than $2 from China (where else?), is more capable, and you get the PCB with all support parts fitted. I can't see the point in re-inventing the wheel with bare chips. 