for @pighixxx
big thanks for making these!
but,
for the ATtiny45/85 section, pin 2 and 3, there's no PWM function there
only pin 0 and 1 have PWM mode.
(I have ATtiny45 and I test PWM on pin 2 and 3, not working...)
and I read from MIT HLT too..
sorry for my bad english
btw, this is my first post 
because i want say thanks to you