Did you use the correct version of AVRdude? See post #1 on this thread: https://forum.arduino.cc/index.php?topic=481180.0
As far as I understand you have to program them the same as a genuine Arduino. Fuses are setting things like clockspeed, which is pretty important for working right of course. But don't know anything more about it, so would love to learn as well.
As far as I understand you have to program them the same as a genuine Arduino. Fuses are setting things like clockspeed, which is pretty important for working right of course. But don't know anything more about it, so would love to learn as well.