How long would the Arduino's Atmega328 chip take in terms of "startup time" to wakeup from sleep mode, for example upon a timer- or pushbutton-interrupt? (assuming the standard external crystal) Is it on the order of milliseconds, or 100s of milliseconds? I ask because I am playing with a barebone…

How long does Atmega take to wake up from Sleep mode?

system January 15, 2013, 6:44am 2

milliseconds, but check the datasheet to be sure.

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