Hi,all
https://www.avrfreaks.net/index.p...
In that topic, I had use the 40 pins chip,but seem too much.Could I used another chip instead of the 40 pins chip which had the same functions.
I think 16(pwm)+2(tx,rx)+2(crystal)+2(+,-)=22 pins's chips is basic or add little pins.
Hope somebody told me,Thanks a lot.