we have a device whos active time will be 5 minutes once a month
we have done some preliminary work on saving power.
the device scans for the app, before advertising.
the app advertises its presence, then scans for the devices in a room, after waiting for some amount of time
when the app is done, it goes away, and the device stops advertising, until the next time the app shows up
now, we want the 'delay' from app on to devices detected to be 'low', responsive, guess 15 seconds too long, 5 seconds about right..
as is typical, the device might have stopped active scanning just before the app appears., so the delay should not be more than 5 seconds.
the app currently scans for 15 seconds, and stops early if it hears no new devices. over a 2 second cycle
but wake up from sleep takes longer to get scanning up and running again ..
but 99.9999 % of the time there is nothing to scan.
want to run off battery, full power demand is between 150-200ma. for 50% of the 5 minute period.
scan power demand is 80ma.
but I cant get wakeup from positive scan (wake on lan type approach), only have BLE available
any thoughts welcomed.. we will be using the 52833 and 52840 devices.
