Hello i been looking for a more smaller board to fit one of my project. And what i came across was a Attiny85 board with USB on it no FTDI or another board programming it. I was wondering if it is possible to do this? I never saw or head of using a attiny85 like this. I have seen the atmega32u4 that requires no ftdi on it or anything else.
I'm wondering how is this possible?