added hardware PWM and oversampling on branch hwpm
when I set COM2A, it blinks. When I set COM2B, it does not blink,
which means timer is going on, but it's not pwming either.
can make PB4 blink, but when I set the timers up, it doesn't blink or
pwm, just like timer 2 was doing. Odd.
fixed TCCR1B config
converted to hardware PWM and tested.
installed.
commit