I'm designing a circuit to run from battery, using a nano without a led (and bypassing the voltage regulator). I want to sleep (PWR DOWN) for 15 or 20 minutes. I can wake up every 8s with the watchdog, stay awake for ~65ms eating ~45mA (spending in total more than 7 seconds awake during a 15 minute…

Most efficient sleep

system April 24, 2016, 4:48pm 2

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