The worst case error on a resonator is usually around 0.7%, usually much better.
I would personally just use a resonator. They are cheap and the frequency inaccuracy is generally mostly FUD.
Quote from: smeezekitty on Jul 06, 2012, 09:52 amThe worst case error on a resonator is usually around 0.7%, usually much better.Not that it matters much for this discussion but the resonator on my UNO is almost 2% too slow. I can actually tune the internal oscillator to be more accurate (just less than 0.2%).
the resonator on my UNO is almost 2% too slow.
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