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Is the screen always on, or does it wake up on command? If so, how? If not, does it produce visible light in the room when not displaying?

Amazing result, well done & thank you for sharing!

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It's always on. This means that when the lights are out, there's a faint black rectangle (with the time in the upper right corner) shining on my wall. It was a little annoying at first, but now I don't notice it. It doesn't keep me from falling asleep.

I couldn't find an API in Fire OS to change the user's screen brightness, and I don't know that one exists. I'd love to have it be brighter during the day to compete better with sunlight, but alas.

Never used FireOS, but I assume you'd just use the Android windowsmanager. Code (from my smart mirror, which I posted here a year ago and no one cared) here, line 190: https://github.com/ineptech/mirror/blob/master/src/com/inept...

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