Built an LCARS based doorbell!
Built an LCARS based doorbell!
Just rings for now, going to expand functionality later to handle authentication for unlocking the door and maybe other things lol
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What's the power consumption on that? Does the screen go to sleep?
I never bothered to look I wasn't planning on battery power. I'm powering this off the existing doorbell transformer and wiring with AC to DC buck converter
Though from time to time I had it powered off my laptop USB and that only delivers 500ma so I can't imagine it'd be very much
Screen sleeps, but I wasn't originally going to keep it that way, but people just seem to instinctively tap it to wake and tap the ring button without issue so I've decided to leave it to extend the displays life
If color e-paper displays come down in price enough, it seems like this would be a good use case.
Even if it's not battery powered, I personally would be conscious of the energy inefficiency. But I would be fine with it going to sleep. I suppose it should also be possible to automatically wake it up if a person approaches, using a motion sensor.