I'm working on a project to build an optical tachometer. I've got a couple mega8's to use on this.
As I've been drawing the schematic in Eagle I'm wondering how much trouble would I be making for myself if I were to leave out the crystal and caps and instead use the internal crystal in the mega8. My thinking is less components to have to lay out on the schematic and PCB.
As this is using time functions for counting would I be making trouble for myself?
I saw a blog post from TodBot about making a minimal Arduino with a mega8. I realize I'd need to add an entry into the 'boards' file for the IDE that would deal with the lack of external timing.
As always, thanks in advance.