westfw:
Yep. If you consider 65ms "quick." And that's the "deep sleep" mode; the modes that leave the clock running wake up within a relatively small number of clock cycles (well under 1ms.)
I believe that this is wrong. The 16 MHz Arduinos have their clock source fuse bits set to "Crystal Oscillator, slowly rising power". The datasheet has a table that says "Start-up Time from Power-down and Power-save", and the value given is 16K CK. 16,000 clock cycles is 1 ms. The 65 ms figure you are getting is part of the "Additional Delay from Reset" figure. Waking up from sleep is not a reset, so that time is irrelevant.
There is no sleep mode called "deep sleep", you probably mean Power-down.
josephchrzempiec:
Hello Westfw thank you. So waking up the arduino board is pretty quick then. I'm using a pro mini board for this project.
Which one? There's 4 variants:
Arduino Pro or Pro Mini (5V, 16 MHz) w/ ATmega328
Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega328
Arduino Pro or Pro Mini (5V, 16 MHz) w/ ATmega168
Arduino Pro or Pro Mini (3.3V, 8 MHz) w/ ATmega168
3 of the 4 have the same clock source fuse settings, only the 8MHz ATmega168 is different. It'll actually have a quicker wakeup time.
The 8MHz ATmega328 variant will take double the amount of time I quoted above, 2 ms.