Using ACTION_BATTERY_LOW and ACTION_BATTERY_OKAY as trigger for synsing many android devices -


i'm trying find solution quite simple problem : playing video on large number of identical android devices @ same time. make clear, have make wall 100 7 inch sreens should play same videos @ same time.

as syncing many devices wirelessly seems bit tricky, 1 idea use low-cost android tablets , replace battery direct wired 3v 3.7v connection, , use change of voltage 3.0v (low battery) 3.7v (full charge) trigger jump t=0 in pre-charged video.

i've read signals action_battery_low , action_battery_okay emitted system. so, think using them triggering jump t=0 in video ?

this solution allow me connect 2 wires tablets, , connecting them on batt (replacing battery), aesthetically better using micro-usb connector on side.

does knows if can work ? syncing precision expect (all devices identical).

if there little existing software that, i'm interesting in knowing ! or existing open source project modify, use sample, because i'm beginner in android programming...

many help.

sylvain


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