More wood chuck lighting questions

[Demon]

I think the 12F683 will work down to 3.3V

Maybe, but what about the LEDs?

You want to read up on drop-out voltage.

Here is an excellent tutorial:
http://www.afrotechmods.com/videos/v...r_tutorial.htm

If the link doesn't work, it's on u-toob:


EDIT: Oh yeah, forgot to say, it's a must-watch video even for those that know this stuff. He's hilarious!